National Routeing Guide update

[Kilopylae]

I also recalled hearing that the issue was that fixed links don't count when checking for shortest routes/routes within three miles, and niche though it may be, it also doesn't seem difficult to fix.

 

[Paul Kelly]

Good point; if bus mileage was counted for routeing purposes, it would be much less likely for routes involving long bus stretches to be valid under the shortest route or 3 mile rules. Still possible, though.

 

[infobleep]

This feels like they should really have tried to fix the underlying hole in the logic rather than just slapped an easement on it

I agree but may be that is too time consuming and they don't have time or staff to do it. This is faster

 

[miklcct]

I agree but may be that is too time consuming and they don't have time or staff to do it. This is faster

What was the initial reason that such tickets wouldn't be accepted on the bus despite it was a valid route?

 

[infobleep]

What was the initial reason that such tickets wouldn't be accepted on the bus despite it was a valid route?

The fact the destination says Woking on a ticket from Guildford and the journey is much longer than a rail journey from Guildford to Woking.

It is a bus and not a train. I've not heard of anyone using it and I can't see why a bus driver, who is highly unlikely to be trained in the routing guide, would accept such a ticket. It's one thing to argue the point at a ticket barrier but I think another to argue on the bus

I do accept though it was the only legal way to get to Woking during the strike timetable days. I didn't try it out myself as it takes so long to get to Woking via Heathrow. I don't know if one could break their journey at Woking on the way out, given it's not on the timetable when planning a route from Guildford. Guildford to Heathrow does not list the Woking stop, to avoid confusing people I believe.

 

[kieron]

Some more changes were published in the routeing guide on Thursday.

Changes from 19 Aug 2022 (402) to 25 Aug 2022 (403).

Easement changes:

Removed:

701002 (Fare route) During engineering works on the 16 and 17 August 2022, tickets from Worcestershire Parkway priced on (00807) VIA STROUD, (00808) READING STROUD INCLUDING LONDON, (00803) EVESHAM/STROUD, (00827) LONDON STROUD/EVESHAM, (00418) AP KEMBLE/SLOUGH and (00417 AP KEMBLE NOT LONDON will be valid via Yate, Cam & Dursley and Bristol Parkway for journeys via Swindon. This fare route easement applies in both directions

701004 (Local) During engineering works on the 16 and 17 August 2022, tickets from Worcestershire Parkway priced on (00807) VIA STROUD, (00808) READING STROUD INCLUDING LONDON, (00803) EVESHAM/STROUD, (00827) LONDON STROUD/EVESHAM, (00418) AP KEMBLE/SLOUGH and (00417 AP KEMBLE NOT LONDON will be valid via Yate, Cam & Dursley and Bristol Parkway for journeys to and beyond Swindon.. This Local easement applies in both directions

701015 (Local) The Severn Tunnel will be closed on Sunday 14 August 2022. Customers from Severn Tunnel Junction, Caldicot, Chepstow and Lydney travelling to Cam & Dursley, Yate, Bristol Parkway , Filton Abbeywood, Lawrence Hill, Stapleton Road and Bristol Temple Meads, or to destinations via Bristol Parkway may travel on trains via Gloucester to avoid using the rail replacement bus service. This Local easement applies in both directions.

701016 (Fare route) The Severn Tunnel will be closed on 14 August 2022. Customers travelling from Chepstow and Lydney with tickets priced on route (00843) VIA SEVERN TUNNEL JUNCTION, may travel via Gloucester. This Fare Route easement applies in both directions.

701017 (Routeing Point) The Severn Tunnel will be closed on 14 August 2022. Customers from Severn Tunnel Junction, Caldicot, Chepstow and Lydney travelling to Cam & Dursley, Yate, Bristol Parkway , Filton Abbeywood, Lawrence Hill, Stapleton Road and Bristol Temple Meads, or to destinations via Bristol Parkway may travel on trains via Gloucester to avoid using the rail replacement bus service. This Routeing Point easement applies in both directions.​

These are all temporary easements for dates in the past.

Added:

701024 (Fare route) During engineering work disruption, on Sunday 11 September, Saturday 01 October and Sunday 06 November 2022, tickets priced on routes (00619) GUILDFORD READING and (00615) GOMSHALL will be valid on journeys that go via Clapham Junction. This fare route easement applies in both directions​

Sections of the Reading-Redhill line are closed on those dates, so this helps people avoid the line.

701025 (Fare route) During engineering work closures between Frome, Castle Cary and Taunton between 01 and 11 October 2022. Customers with tickets priced on route (00063) VIA NEWBURY will be able to travel via Swindon. customers using tickets priced on route (00818 NOT VIA BRISTOL will be able to travel via Bristol. This fare route easement will apply in both directions​

You can only buy "via Newbury" tickets between places east of the closure. That said, the service through Newbury is reduced during the works, especially at the weekend. Permitting (say) a "via Newbury" Westbury-London ticket to be used via Swindon improves the journey opportunities for those who don't have a more expensive "any permitted" ticket.

The "via Bristol" change helps (say) a Trowbridge-Taunton traveller to avoid the buses without (again) a more expensive ticket.

701026 (Map) During engineering works between 01 - 11 October 2022, journeys to/via Taunton that normally would travel via Castle Cary may travel via Bristol, Bath Spa and Westbury. This map easement applies in both directions​

This permits a diversion via Westbury, Bath, Bristol and Taunton for any mapped routes via Bath.

701027 (Fare route) During engineering works between 01 - 11 October 2022, customers travelling to or via Taunton from Westbury, Pewsey, Bedwyn, Hungerford, Kintbury, Newbury, Newbury Racecourse, Thatcham, Midgham, Aldermaston and Theale with tickets priced on (00810 NOT VIA READING may travel via Reading. this fare route easement applies in both directions.​

There are no "not via Reading" tickets between Westbury and the SW, but there are for the other stations mentioned. This easement permits a cheaper ticket to be used on a route which usually needs a more expensive one.

I notice that nre.co.uk didn't offer "not via Reading" tickets via Reading for the Pewsey-Exeter journey I tried, where it did for journeys from Bedwyn or further west. I don't know why this was.

Changed (added sections in red, removed ones in green):

Easement 701014 (creator unspecified)
Due to engineering work closures between 24 September and 11 October 2022, journeys to or via Yeovil on tickets routed on (00829) VIA YEOVIL will be able to travel via Brockenhurst. Tickets priced on route (00955) GWR ONLY will be able to travel via Yeovil Junction and Salisbury. These fare route easements will apply in both directions
+ve fare route easement (24/09/2022-11/10/2022)
contain BCU & go from YVJ with route VIA YEOVIL (00829)
contain BCU & go to YVJ with route VIA YEOVIL (00829)
contain BCU & go via YVJ with route VIA YEOVIL (00829)
contain BCU SAL with route VIA YEOVIL (00829)
contain SAL YVJ with route GWR ONLY (00955) (00955)

Stations:
Brockenhurst (BCU)
Salisbury (SAL)
Yeovil Junction (YVJ)​

This extra line means that, between the specified dates, someone with a Weymouth-Chippenham ticket can travel via Southampton and Salisbury. The route is specified in easement 701013.

 

[infobleep]

Some more changes were published in the routeing guide on Thursday:

701024 (Fare route) During engineering work disruption, on Sunday 11 September, Saturday 01 October and Sunday 06 November 2022, tickets priced on routes (00619) GUILDFORD READING and (00615) GOMSHALL will be valid on journeys that go via Clapham Junction. This fare route easement applies in both directions​

Sections of the Reading-Redhill line are closed on those dates, so this helps people avoid the line.

I didn't remember seeing such a temporary easement for the North Downs Line before. I think seeing any easement on the line during engineering works is almost unheard of.

It possible I've missed some before now though

 

[Jurg]

May I ask what the benefit / point is in applying an easement for dates in the past?

 

[2192]

May I ask what the benefit / point is in applying an easement for dates in the past?

If someone travelling that was surcharged, they can claim a refund, if they still have the evidence.

Life was a lot easier under BR's 'any reasonable' routing system if no route was specified!

 

[swt_passenger]

May I ask what the benefit / point is in applying an easement for dates in the past?

That’s not how it reads to me, the items with dates in the past all seem to be in the section headed “removals”, all the “additions” are in the future?

 

[kieron]

That’s not how it reads to me, the items with dates in the past all seem to be in the section headed “removals”, all the “additions” are in the future?

Sorry, yes. Those have all been deleted. From what I can see, there's only one easement left (700173) for which the text gives an end date, and where this is before August.

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New post

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Some more changes were published to the routeing guide yesterday.

Changes from 25 Aug 2022 (403) to 07 Sep 2022 (404).​

​

Easement changes:​

​

Added:​

​

701028 (Fare route) During engineering works with Rail Replacement services operating between Banbury and Didcot Parkway on Saturdays and Sundays from 10 September 2022 to 02 October 2022. Tickets priced on (00825 VIA OXFORD, will be valid on Rail Replacement Bus services that do not call at Oxford. This fare route easement applies in both directions.​

There are no trains scheduled to run between Didcot and Leamington then, and all lines through Oxford are closed. To help with this, there are rail replacement buses between Didcot and Banbury, calling at Oxford, ones between Oxford and Leamington, calling at Banbury, and some shorter distance services.

This easement means these buses are shown as being permitted with a "via Oxford" Didcot-Birmingham ticket, but does not affect (for example) "via Oxford and Stafford" Reading-Carlisle tickets.

Changed (added sections in red, removed ones in green):​

701027 (Fare route) During engineering works between 01 - 11 October 2022, customers travelling to or via Taunton from Westbury, Pewsey, Bedwyn, Hungerford, Kintbury, Newbury, Newbury Racecourse, Thatcham, Midgham, Aldermaston and Theale with tickets priced on (00810 NOT VIA READING may travel via Reading West and Reading. this fare route easement applies in both directions.​

The "not via Reading" route code prevents web sites from suggesting journeys via Reading West or Reading, so the easement now overrides all of the restrictions for relevant journeys.

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The following post was made on 12 September 2022.

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Some easements were deleted from the routeing guide this afternoon.

Changes from 07 Sep 2022 (404) to 12 Sep 2022 (405).​

​

Easement changes:​

​

Removed:​

​

700173 (Circuitous Route) Customers travelling from or via Newton Abbot, Teignmouth, Dawlish, Dawlish Warren, Starcross and Marsh Barton to Exeter St Thomas may not travel via Exeter St David's. This easement applies until the 15 December 2019 and will operate in both directions.​

​

701001 (Fare route) During engineering work diversion on Saturdays 06 August, 13 August, 03 September and 10 September 2022 tickets priced on fare route (00099) NOT VIA DARLINGTON will be valid for travel via Darlington​

​

701005 (Map) Due to engineering works, customers travelling on Sundays 14th and 21st of August and Monday 29th August from Stansted Airport to central London or via central London may travel to London Kings Cross via Cambridge and Hitchin. This map easement applies in both directions​

​

701006 (Routeing Point) Due to engineering works, customers travelling on Sundays 14th and 21st of August and Monday 29th August from Elsenham (Essex), Newport (Essex), Audley End, Great Chesterford, Whittlesford Parkway and Shelford (Cambs) to central London or via central London may travel to London Kings Cross via Cambridge and Hitchin. This routeing point easement applies in both directions​

​

701011 (Map) During engineering work route closures between the 18 and 23 September 2022, journeys between the west country to or via Bristol Temple Meads can be routed via Westbury and Bath Spa. This map easement applies in both directions​

​

701022 (Fare route) During service changes on Saturday 20 August 2022. Tickets priced on (00063) VIA NEWBURY and (00494) AP NEWBURY will be valid via Didcot Parkway and Swindon. This fare route easement applies in both directions.​

​

701023 (Fare route) During service alterations on 20 August 2022, journeys from Grays, Tilbury River and Tilbury Town to Upminster with tickets priced on (00114) VIA GRAYS and (00298) VIA OCKENDON are valid on journeys via Stanford Le Hope and Pitsea. This fare route easement applies in both directions.​

These were all temporary easements, and the dates have now passed.

701012 (Doubleback) During engineering work route closures between the 18 and 23 September 2022, journeys to or via Taunton may doubleback between Bristol Temple Meads and Bath Spa. This temporary doubleback easement applies easement applies in both directions​

This easement was added to accommodate trains which were diverted via Trowbridge between Bristol and Taunton. At present, the Crosscountry trains seem to be scheduled to run on roughly their standard timetable, GWR are using buses, and diverting the few trains to Devon & Cornwall which go via Bristol, and the engineering works page on nre.co.uk states that lines will be closed and both operators' services diverted.

This easement remains useful with the current schedule, but I don't know if this is what is expected to happen on the day.

 

[Kilopylae]

700173 (Circuitous Route) Customers travelling from or via Newton Abbot, Teignmouth, Dawlish, Dawlish Warren, Starcross and Marsh Barton to Exeter St Thomas may not travel via Exeter St David's. This easement applies until the 15 December 2019 and will operate in both directions.

Anyone have any idea what the purpose of temporarily doing this was?

 

[Watershed]

Anyone have any idea what the purpose of temporarily doing this was?

Is it perhaps the case that Exeter St Thomas started being skipped more often in the December 2019 timetable?

 

[kieron]

Anyone have any idea what the purpose of temporarily doing this was?

Easement 700173 wasn't originally a temporary one. It was created (in, I think, 2011) without an end date, and the date was added in in October 2019. 15 December was the last day of the May timetable.

Both before and after then, Exeter St Thomas was generally only served by the hourly Paignton train, meaning that anyone travelling west of Newton Abbot had to change somewhere. I don't know if some small changes then made things worse, though.

 

[kieron]

Some more changes to the routeing guide were published this afternoon.

Changes from 12 Sep 2022 (405) to 27 Sep 2022 (406).

Easement changes:

Added:

701029 (Routeing Point) Customers travelling from Cardenden or Lochgelly to Kirkcaldy, may travel via Inverkeithing. This routeing point easement applies in both directions.​

An easement is needed for this journey as most of the trains between Glenrothes with Thornton and Kirkcaldy were cancelled earlier this year, but they remain part of the same routeing group.

There is already a "local" easement to permit this (easement 700997), so I don't know the purpose of this one. Perhaps some web sites need something extra?

701030 (Map) During an engineering closure on the 08 October 2022, Avanti West Coast services will not be able to travel between Coventry and Birmingham. Services will be diverted via Stafford, and this map easement will create temporary permitted routes that will apply in both directions.​

There doesn't seem to be any indication of this closure in the timetable or on the national rail engineering works page.

The easement, however, permits travel via routeing points between Rugby and Stafford, Smethwick and Stafford, and also via Walsall. It only applies to travel on Avanti trains, so the effect depends on what diversions they use.

701031 (Fare route) During service alterations on 01 and 08 October 2022, journeys from Grays, Tilbury River and Tilbury Town to Upminster with tickets priced on (00114) VIA GRAYS and (00298) VIA OCKENDON are valid on journeys via Stanford Le Hope and Pitsea. This fare route easement applies in both directions.​

The C2C line between Grays and Upminster is closed then, as is the one between Pitsea and Barking via Upminster. This easement means someone with a relevant ticket can catch a bus from Upminster to Grays or to Pitsea. A different ticket would be needed to travel via Barking, though.

In addition to the above, the data for easement 700351 has been amended, and permissions have been added for tickets with a route of AP XC EMR & CONS (00493). This has no effect as the easement only applies to journeys to or from Bromsgrove, and none of those use that route code.

 

[Jurg]

701030 (Map) During an engineering closure on the 08 October 2022, Avanti West Coast services will not be able to travel between Coventry and Birmingham. Services will be diverted via Stafford, and this map easement will create temporary permitted routes that will apply in both directions.​

There doesn't seem to be any indication of this closure in the timetable or on the national rail engineering works page.

The easement, however, permits travel via routeing points between Rugby and Stafford, Smethwick and Stafford, and also via Walsall. It only applies to travel on Avanti trains, so the effect depends on what diversions they use.

​

8th is a strike day anyway, so not going to make a fat lot of difference to anything I expect.

 

[kieron]

Some more changes were published in the routeing guide yesterday.

Changes from 27 Sep 2022 (406) to 30 Sep 2022 (407).

Station Association changes:
Inverness Airport (IVA) is now associated with Aberdeen (ABD) and Inverness (INV).
Portishead (POH) is now associated with Bristol Group (G05).

Non-NFM64 station changes:
Portishead (POH) now uses NFM64 fares for Bristol Temple Meads (BRI) (11/12/2022-)
Inverness Airport (IVA) now uses NFM64 fares for Nairn (NRN) (11/12/2022-)​

This means that you can now calculate mapped routes to or from Portishead or Inverness Airport. There are no tickets yet, of course.

In addition, the data for easement 700351 has been changed again. The recently added lines of data all now refer to the same route codes as in the text. The text remains as:

700351 (Doubleback) Customers travelling from or via Bedminster, or from or via Yate to Bromsgrove in possession of tickets routed (00000) ANY PERMITTED, (00439) XC & CONNECTIONS, (00817) VIA BRISTOL may double back via Birmingham New Street. This easement applies in both directions.​

From what I can tell, before Thursday the data didn't implement the "via Yate" bit.

 

[kieron]

An easement was added to the routeing guide this afternoon.

Changes from 30 Sep 2022 (407) to 11 Oct 2022 (408).

Easement changes:

Added:

701032 (Map) Customers travelling to Edinburgh and beyond whose normal route is via Newcastle and Berwick upon Tweed, may travel via Carlisle during engineering on Saturdays and Sundays between 8th October and 23rd October 2022. This map easement applies in both directions​

There is engineering work between Berwick upon Tweed and Edinburgh. Some trains are replaced by buses, and others are diverted via Carlisle between Newcastle and Edinburgh.

This easement adds Newcastle, Carlisle, Carstairs and Edinburgh to any map combination used for a journey via Carlisle. It wouldn't affect an "AP Berwick" ticket.

 

[kieron]

Some more changes were published in the routeing guide yesterday.

Changes from 11 Oct 2022 (408) to 20 Oct 2022 (409).​

​

Easement changes:​

​

Removed:​

​

701013 (Map) During engineering work closures between 24 September and 11 October 2022, impacting journeys to and via Dorchester and Yeovil to the West Country, Bristol and beyond. Customers with tickets routed on (00000) ANY PERMITTED, (00955) GWR ONLY, (00829) VIA YEOVIL, (00818) NOT VIA BRISTOL and (00817 VIA BRISTOL will be able to travel via Southampton and Salisbury. This map easement to apply in both directions​

​

701014 (Fare route) Due to engineering work closures between 24 September and 11 October 2022, journeys to or via Yeovil on tickets routed on (00829) VIA YEOVIL will be able to travel via Brockenhurst. Tickets priced on route (00955) GWR ONLY will be able to travel via Yeovil Junction and Salisbury. These fare route easements will apply in both directions​

​

701018 (Fare route) During engineering works over the weekends of the 10/11, 17/18, 24/25 September and 01/02 October 2022. Customers travelling from Ledbury, Colwall, Great Malvern, Malvern Link, Worcester Foregate Street, Worcester Shrub Hill and Worcestershire Parkway to Didcot and beyond. With tickets priced on routes (00799) LONDON EVESHAM, (00805) VIA EVESHAM and (00433) AP EVESHAM, may travel on trains via Stroud . This fare route easement applies in both directions.​

​

701019 (Map) During engineering works over the weekends of the 10/11, 17/18, 24/25 September and 01/02 October. Customers travelling from Ledbury, Colwall, Great Malvern, Malvern Link, Worcester Foregate Street, Worcester Shrub Hill and Worcestershire Parkway to Didcot and beyond. With tickets priced on routes (00799) LONDON EVESHAM, (00805) VIA EVESHAM and (00433) AP EVESHAM, may travel on trains via Stroud and Swindon . This map easement applies in both directions.​

​

701020 (Routeing Point) During engineering work closures between 24 September and 11 October 2022, impacting journeys to and via Dorchester South from or via Yeovil Junction, Sherborne, Templecombe, Gillingham (Dorset) and Tisbury. Customers with tickets routed on (00000) ANY PERMITTED, (00955) GWR ONLY, (00829) VIA YEOVIL, (00818) NOT VIA BRISTOL and (00817 VIA BRISTOL will be able to travel via Salisbury and Brockenhurst. This routeing point easement to apply in both directions.​

​

701025 (Fare route) During engineering work closures between Frome, Castle Cary and Taunton between 01 and 11 October 2022. Customers with tickets priced on route (00063) VIA NEWBURY will be able to travel via Swindon. customers using tickets priced on route (00818 NOT VIA BRISTOL will be able to travel via Bristol. This fare route easement will apply in both directions​

​

701027 (Fare route) During engineering works between 01 - 11 October 2022, customers travelling to or via Taunton from Westbury, Pewsey, Bedwyn, Hungerford, Kintbury, Newbury, Newbury Racecourse, Thatcham, Midgham, Aldermaston and Theale with tickets priced on (00810 NOT VIA READING may travel via Reading West and Reading. this fare route easement applies in both directions.​

​

701028 (Fare route) During engineering works with Rail Replacement services operating between Banbury and Didcot Parkway on Saturdays and Sundays from 10 September 2022 to 02 October 2022. Tickets priced on (00825 VIA OXFORD, will be valid on Rail Replacement Bus services that do not call at Oxford. This fare route easement applies in both directions.​

​

701030 (Map) During an engineering closure on the 08 October 2022, Avanti West Coast services will not be able to travel between Coventry and Birmingham. Services will be diverted via Stafford, and this map easement will create temporary permitted routes that will apply in both directions.​

These were all temporary easements, and the dates have now passed.

Added:​

​

701033 (Fare route) During engineering works on 22/23 October and 20 November 2022 tickets priced on (00118) VIA UPMINSTER will be valid on journeys via Pitsea. This fare route easement applies in both directions.​

There are no C2C trains through Upminster on those dates, so this easement allows (say) a Basildon-Barking ticket to be used on the route via Rainham.

701034 (Routeing Point) During engineering works on 22/23 October and 20 November 2022 tickets from or via Basildon will be valid on journeys via Pitsea. This routeing point easement applies in both directions.​

There are only rail replacement buses between Upminster and Pitsea then. I don't know if this easement has any effect as the fare check is normally only considered for the "rail" section of a journey (needed as a bus may miss out the "routeing point" station altogether), and that only starts at Pitsea.

The data for the easement appears to contain a mistake. It doesn't include a rule to permit journeys from Basildon on 20/11. There is one for journeys from Basildon to West Horndon, but you wouldn't look at this easement for a journey like that as it's a "local" one.

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The following post was made on 27 October 2022, and then mangled by XenForo.

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Some more changes were published in the routeing guide this afternoon.

Changes from 20 Oct 2022 (409) to 27 Oct 2022 (410).​

​

Permitted Route changes:​

Cheltenham Spa (CNM) to Westbury Group (G46) gain HP+PC​

Gloucester (GCR) to Westbury Group (G46) gain HP+PC​

Westbury Group (G46) to Worcester Group (G35) gain PC+HP​

Weymouth Group (G33) to Worcester Group (G35) gain XR+HP​

These journeys now have mapped routes via Stroud.

Easement changes:​

​

Added:​

> 701035 (Map) During engineering works between 27 and 31 December 2022, Bristol Parkway station will be closed. This map easement will provide temporary permitted routes via Bristol Temple Meads, Swindon and Kemble, for journeys that normally would travel north/south via Bristol and Gloucester. It will apply in both directions.​

This change adds the routeing points on a route from Bristol to Cheltenham via Swindon and Gloucester to the maps involved in mapped routes, so long as the route doesn't go from, to or via Didcot.

 

[kieron]

Some more changes to easements were published in the routeing guide on Friday. Sorry about the delay.

Changes from 27 Oct 2022 (410) to 04 Nov 2022 (411).​

​

Easement changes:​

​

Removed:​

​

701026 (Map) During engineering works between 01 - 11 October 2022, journeys to/via Taunton that normally would travel via Castle Cary may travel via Bristol, Bath Spa and Westbury. This map easement applies in both directions​

​

701031 (Fare route) During service alterations on 01 and 08 October 2022, journeys from Grays, Tilbury River and Tilbury Town to Upminster with tickets priced on (00114) VIA GRAYS and (00298) VIA OCKENDON are valid on journeys via Stanford Le Hope and ​

Pitsea. This fare route easement applies in both directions.​

​

701032 (Map) Customers travelling to Edinburgh and beyond whose normal route is via Newcastle and Berwick upon Tweed, may travel via Carlisle during engineering on Saturdays and Sundays between 8th October and 23rd October 2022. This map easement applies in both directions​

No longer needed as the dates have passed for them.

701037 (Local) Customers travelling from Uddingston to Newton (Lanarkshire) may interchange at Cambuslang. This Local easement will apply in both directions.​

The shortest route between Uddingston and Newton is via Cambuslang (only trains via Hamilton go through Newton, and those avoid Uddingston). This easement may help some web sites to show this as valid, although it didn't seem to affect nre.co.uk when I looked.

701036 (Map) During engineering works between 27 and 31 December 2022, Bristol Parkway station will be closed. This map easement will provide temporary permitted routes via Bristol Temple Newport (South Wales) and Gloucester for journeys that normally would travel north/south via Bristol Parkway and Gloucester. It will apply in both directions.​

This adds the rest of Bristol Group, Newport & Gloucester to any mapped route which doesn't go through Swindon, and there are diverted trains which use this route. Easement 701035 helps with some journeys from Swindon.

701038 (Doubleback) During engineering works between 27 and 31 December 2022, Bristol Parkway station will be closed. This double back easement will provide temporary permitted routes via Bristol Temple Newport (South Wales), Severn Tunnel Junction and Gloucester for journeys that normally would travel north/south via Bristol Parkway and Gloucester. It will apply in both directions.​

This lets you double back through Severn Tunnel Junction if you follow the route in easement 701036.

There are also a few easements affecting C2C services for dates between yesterday and Wednesday. I don't know what closures are actually happening, though.

701039 (Map) During Engineering works closing the route between Upminster and Grays on the 05, 07 and 09 November 2022. Journeys to Ockendon and Chafford Hundred will be permitted via Grays and Pitsea. This map easement applies in both directions​

This affects journeys from Ockendon and Chafford Hundred to Barking, Pitsea or Romford, or anywhere beyond, and adds Grays, Upminster and Pitsea to the maps for any journey.

701040 (Fare route) During Engineering works closing the route between Upminster and Grays on the 05, 07 and 09 November 2022. Tickets priced on (00298) VIA OCKENDON will be permitted via Grays and Pitsea. This fare route easement applies in both directions​

This permits a Grays-Upminster or Chafford Hundreds-Upminster ticket to be used via Grays and Pitsea.

701041 (Map) During Engineering works closing Dagenham Dock station. Customers to Dagenham Dock may travel via Barking Upminster and Grays. This map easement applies in both directions.​

There's no date in the easement text, but the data only refers to today. It adds the above routeing points to any mapped route to Dagenham Dock, anyway.

701042 (Fare route) During Engineering works closing Dagenham Dock station. Customers to Dagenham Dock may travel via Barking Upminster and Grays on tickets priced on (00297) NOT VIA GRAYS . This fare route easement applies in both directions.​

This lets a "not via Grays" Purfleet-Dangenham Dock ticket be used today via Grays. The route is used for other tickets, but none to or from Dagenham Dock.

701043 (Map) During Engineering works closing the route between Barking and Upminster station on 08 November 2022. Customers may travel via Grays . This map easement applies in both directions.​

This adds Barking, Grays and Upminster to all mapped routes. You'd need to get pretty close using the standard maps to take advantage of this, though.

701044 (Fare route) During Engineering works closing the route between barking and Upminster station on 08 November 2022. Customers travelling on tickets priced on (00118) VIA UPMINSTER may travel via Grays . This fare route easement applies in both directions.​

This lets you buy (say) a New Cross-Southend Central "via Upminster" ticket and use it via Grays instead.

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The following text was posted on 10 November before being altered by XenForo.

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Some more changes were published in the routeing guide yesterday.

Changes from 04 Nov 2022 (411) to 09 Nov 2022 (412).​

​

Station Association changes:​

​

Brent Cross West (BCZ) is now associated with Bedford Midland (BDM) and West Hampstead Thameslink (WHP).​

East Linton (ELT) is now associated with Edinburgh Group (G11) and Newcastle (NCL).​

These are in preparation for selling tickets to these new stations. Each is associated with the closest routeing point in either direction.

Non-NFM64 station changes:​

​

Brent Cross West (BCZ) now uses NFM64 fares for Cricklewood (CRI) (11/12/2022-)​

East Linton (ELT) now uses NFM64 fares for Drem (DRM) (09/11/2022-)​

​

Station link changes:​

​

Drem (DRM) to East Linton (ELT) now has a distance of 5.00.​

Dunbar (DUN) to East Linton (ELT) now has a distance of 6.31.​

Brent Cross West (BCZ) to Cricklewood (CRI) now has a distance of 0.82.​

Brent Cross West (BCZ) to Hendon (HEN) now has a distance of 1.04.​

This is more of the data a new station needs.

Berwick-Upon-Tweed (BWK) to Dunbar (DUN) no longer has a distance of 28.40.​

This is no longer needed, as the same distance can be calculated via Reston.

Easement changes:​

​

Removed:​

​

000018 (Local) Journeys from Balcombe, Haywards Heath and Wivelsfield to Lewes and stations beyond may go via Brighton. This easement applies in both directions.​

There were no routeing points between Three Bridges and Brighton at the time this easement was created. Now they are, and every map with Wivelsfield-Lewes on it also contains the route via Brighton, so I don't know if this easement still had any effect.

701024 (Fare route) During engineering work disruption, on Sunday 11 September, Saturday 01 October and Sunday 06 November 2022, tickets priced on routes (00619) GUILDFORD READING and (00615) GOMSHALL will be valid on journeys that go via Clapham Junction. This fare route easement applies in both directions​

​

701041 (Map) During Engineering works closing Dagenham Dock station. Customers to Dagenham Dock may travel via Barking Upminster and Grays. This map easement applies in both directions.​

​

701042 (Fare route) During Engineering works closing Dagenham Dock station. Customers to Dagenham Dock may travel via Barking Upminster and Grays on tickets priced on (00297) NOT VIA GRAYS . This fare route easement applies in both directions.​

​

701043 (Map) During Engineering works closing the route between Barking and Upminster station on 08 November 2022. Customers may travel via Grays . This map easement applies in both directions.​

​

701044 (Fare route) During Engineering works closing the route between barking and Upminster station on 08 November 2022. Customers travelling on tickets priced on (00118) VIA UPMINSTER may travel via Grays . This fare route easement applies in both directions.​

These were all temporary easements (at least, according to the data for them), and the end date has passed for each.

Changed (added sections in red, removed ones in green):​

​

700441 (Circuitous Route) Customers travelling from Carpenders Park, Bushey, Watford High Street, Watford Junction, Watford North, Garston, Bricket Wood, How Wood and Park Street to Elstree & Borehamwood, Mill Hill Broadway, Hendon, Brent Cross West, Cricklewood, West Hampstead and Kentish Town in possession of tickets routed "Any Permitted" may not travel via St Albans. This easement applies in both directions.​

​

700916 (Routeing Point) Customers travelling from or via Pitsea to Cricklewood, Brent Cross West, Mill Hill Broadway or Elstree & Borehamwood on tickets priced on route (00000) ANY PERMITTED may travel via West Hampstead Thameslink. This routeing point easement applies in both directions.​

Both of the easements which referred to Cricklewood have had Brent Cross West added to them.

There are still plenty of "any permitted" tickets for each of them to affect.

Easement 701021 (THAMESLINK AND GT NORTHERN TL)​

Customers travelling with a London Terminals destination ticket e.g . London Liv​

erpool Street or London Paddington from or via Finsbury Park via London St Pancr​

as International and the Elizabeth Line may not travel via Farringdon.​

This circuitous route easement applies in both directions​

-ve circuitous route easement (12/08/2022-)​

contain ZFD, go from FPK, go to LST PAD & go via STP ​

contain ZFD, go from LST PAD, go to FPK & go via STP ​

contain ZFD, go to LST PAD & go via FPK STP ​

contain ZFD, go from LST PAD & go via FPK STP ​

contain PAD, go from FPK & go to LST ​

contain LST, go from FPK & go to PAD ​

contain LST, go from PAD & go to FPK ​

contain PAD, go from LST & go to FPK ​

contain LST, go from PAD & go via FPK ​

go from LST PAD & go via FPK ​

contain LST, go to PAD & go via FPK ​

contain PAD, go to LST & go via FPK ​

This fixes a typo in the text. Some restriction records which don't mention Farringdon have also been added to the data, but I don't know what they add to the easement.

Easement 701037 (SCOTRAIL)​

Customers travelling from Uddingston to Newton (Lanarkshire) may interchange at Cambuslang. This Local easement will apply in both directions.​

+ve local easement (03/11/2022-)​

contain CBL, go from NTN & go to UDD ​

contain CBL, go from UDD & go to NTN ​

contain NTN, go from UDD & go to NTN ​

contain NTN, go from NTN & go to UDD​

This adds some extra permissions to the data, and it seems to be implemented correctly on nre.co.uk (as an example) now.

 

[kieron]

Some more changes were published in the routeing guide this afternoon.

Changes from 09 Nov 2022 (412) to 16 Nov 2022 (413).

Easement changes:

Removed:
701040 (Fare route) During Engineering works closing the route between Upminster and Grays on the 05, 07 and 09 November 2022. Tickets priced on (00298) VIA OCKENDON will be permitted via Grays and Pitsea. This fare route easement applies in both directions

701039 (Map) During Engineering works closing the route between Upminster and Grays on the 05, 07 and 09 November 2022. Journeys to Ockendon and Chafford Hundred will be permitted via Grays and Pitsea. This map easement applies in both directions​

The dates have passed for these now.

Added:

701039 (Map) During engineering works impacting travel into London Kings Cross on the 07 and 08 January 2023, customers will need to travel by bus from St Neots to Bedford and to continue their journeys by train to London St Pancras. Customers with tickets to London Kings Cross on route 00430 LNER & CONNECTIONS, will be permitted to travel to London St Pancras. This map easement applies in both directions.​

This reuses an easement number. LNER aren't due to run south of St Neots, so this easement adds a route from Bedford to St Pancras for their advance tickets for those who use the bus.

Changed (added sections in red, removed ones in green):

701036 (Map) During engineering works between 27 and 31 December 2022, and Sundays 08 January and 05 February 2023 Bristol Parkway station will be closed. This map easement will provide temporary permitted routes via Bristol Temple Newport (South Wales) and Gloucester for journeys that normally would travel north/south via Bristol Parkway and Gloucester. It will apply in both directions.

701038 (Doubleback) During engineering works between 27 and 31 December 2022, and Sundays 08 January and 05 February 2023 Bristol Parkway station will be closed. This double back easement will provide temporary permitted routes via Bristol Temple Newport (South Wales), Severn Tunnel Junction and Gloucester for journeys that normally would travel north/south via Bristol Parkway and Gloucester. It will apply in both directions.​

These have had dates added.

In addition, the data for easement 701021 has been altered. A line has changed from:

go from LST PAD & go via FPK​

to:

contain PAD, go from LST & go to FPK​

Stations:
Finsbury Park (FPK)
London Liverpool Street (LST)
London Paddington (PAD)​

The text remains:

701021 (Circuitous Route) Customers travelling with a London Terminals destination ticket e.g London Liverpool Street or London Paddington from or via Finsbury Park via London St Pancras International and the Elizabeth Line may not travel via Faringdon. This circuitous route easement applies in both directions​

Either line requires a journey involving Finsbury Park as well as at least two of Farringdon, London Liverpool Street or London Paddington.

 

[swt_passenger]

Some more changes were published in the routeing guide this afternoon.

​

701036 (Map) During engineering works between 27 and 31 December 2022, and Sundays 08 January and 05 February 2023 Bristol Parkway station will be closed. This map easement will provide temporary permitted routes via Bristol Temple Newport (South Wales) and Gloucester for journeys that normally would travel north/south via Bristol Parkway and Gloucester. It will apply in both directions.​

​

701038 (Doubleback) During engineering works between 27 and 31 December 2022, and Sundays 08 January and 05 February 2023 Bristol Parkway station will be closed. This double back easement will provide temporary permitted routes via Bristol Temple Newport (South Wales), Severn Tunnel Junction and Gloucester for journeys that normally would travel north/south via Bristol Parkway and Gloucester. It will apply in both directions.​

Looks odd, do the original versions of these two actually read “Bristol Temple Newport” etc? It seems the previous versions did as well…

 

[kieron]

Some more changes were published in the routeing guide on Thursday.

Changes from 16 Nov 2022 (413) to 17 Nov 2022 (414).

Easement changes:

Added:

701040 (Fare route) During engineering works impacting travel into London Kings Cross on the 07 and 08 January 2023, customers will need to travel by bus from St Neots to Bedford and to continue their journeys by train to London St Pancras on either East Midlands or Great Thameslink services. Customers with tickets to London Kings Cross on route (00430) LNER & CONNECTIONS, will be permitted to travel to London St Pancras. This fare route easement applies in both directions.​

This is a "fare route" counterpart to 701039.

Changed (added sections in red, removed ones in green):

701036 (Map) During engineering works between 27 and 31 December 2022, and Sundays 08 January and 05 February 2023 Bristol Parkway station will be closed. This map easement will provide temporary permitted routes via Bristol Temple Meads, Newport (South Wales) and Gloucester for journeys that normally would travel north/south via Bristol Parkway and Gloucester. It will apply in both directions.

701038 (Doubleback) During engineering works between 27 and 31 December 2022, and Sundays 08 January and 05 February 2023 Bristol Parkway station will be closed. This double back easement will provide temporary permitted routes via Bristol Temple Meads, Newport (South Wales), Severn Tunnel Junction and Gloucester for journeys that normally would travel north/south via Bristol Parkway and Gloucester. It will apply in both directions.​

This corrects the wording for each of these.

701039 (Map) During engineering works impacting travel into London Kings Cross on the 07 and 08 January 2023, customers will need to travel by bus from St Neots to Bedford and to continue their journeys by train to London St Pancras. Customers with tickets to London Kings Cross on routes (00000) ANY PERMITTED and (00430) LNER & CONNECTIONS, will be permitted to travel to London St Pancras. This map easement applies in both directions.​

This easement now affects "any permitted" tickets (although I don't know how much help they need), and the data no longer specifies "via St Neots".

I don't know if it's to do with these easements or with ticket quotas, but the one journey I looked at on the Saturday had advance tickets available via St Neots and Hertford East, but not St Neots and Bedford.

 

[JB_B]

... customers will need to travel by bus from St Neots to Bedford and to continue their journeys by train to London St Pancras on either East Midlands or Great Thameslink services...

Never heard GTR called that before.

 

[kieron]

Some more changes were made to the routeing guide this afternoon.

Changes from 17 Nov 2022 (414) to 24 Nov 2022 (415).

Easement changes:

Added:

701041 (Fare route) During engineering works between the 18 February and 02 March 2023, Sunday 05 March 2023 and the weekend of the 11/12 March 2023, that will close the route between Theale and Pewsey, tickets priced on routes (00494) AP NEWBURY and (00063) VIA NEWBURY, will be valid for travel via Melksham and Swindon , but not via Castle Cary, Salisbury or Bath Spa. This fare route easement will apply in both directions.​

This easement lets people with any ticket with a route which requires travel via the line through Newbury to go another way.

It's issued more than 12 weeks in advance, so I don't know if any trains are due to be diverted that way. Not being able to go via Bath would make journeys such as Frome-London slower and more awkward if there are none, but tickets with other routes are available.

Changed (added sections in red, removed ones in green):

701040 (Fare route) During engineering works impacting travel into London Kings Cross on the 07 and 08 January 2023, customers will need to travel by bus from St Neots to Bedford and to continue their journeys by train to London St Pancras on either East Midlands or Great Thameslink services. Customers with tickets to London Kings Cross on route (00430) LNER & CONNECTIONS, will be permitted to travel to London St Pancras. This fare route easement applies in both directions.​

This just corrects a name.

 

[kieron]

Some more changes were published in the routeing guide yesterday.

Changes from 24 Nov 2022 (415) to 07 Dec 2022 (416).

Permitted Route changes:

Huddersfield Group (G40) to Leeds Group (G16) gain LY WK+NB lose GU+YS​

This journey now has mapped routes via Outwood, and ones via Woodlesford which avoid Castleford.
It no longer has mapped routes via Pontefract.

Manchester Group (G20) to Newcastle (NCL) gain VK+MN​

This journey now has mapped routes via Wakefield.

Easement changes:

Added:
701042 (Fare route) During engineering works, on the 07 and 08 January 2023, and the 04, 05 and 11 February 2023, tickets priced on (00847) VIA SWINDON, will be valid for travel via Newbury. This fare route easement applies in both directions.

701043 (Map) During engineering works, impacting journeys from Didcot Parkway via Swindon on the 07, 08 January 2023 and 04, 05 and 11 February 2023, customers will be able to travel via Reading, Newbury and Westbury. This map easement will apply in both directions.​

These adds Chippenham, Bath, Westbury Group, Reading Group and Didcot to mapped routes, and permit relevant "via Swindon" tickets to be used that way.

This means a London-Melksham "via Swindon" ticket can be used via Newbury. A Cholsey-Chippenham ticket can also be used that way, but nre.co.uk (for one) only shows it as valid with a double back via Didcot.

701044 (Doubleback) During engineering works between 27 and 31 December 2022 that will close Bristol Parkway railway station. Customers on services travelling via Melksham and Chippenham will be able to doubleback between Swindon and Chippenham. This doubleback easement will expand journey options and apply in both directions.​

Bristol Parkway is closed then, and there are London-Swansea trains which are non-stop between Swansea Swindon and Patchway.

This easement means those trains can be used as part of a Melksham-Patchway journey. It doesn't work for (say) Trowbridge-Patchway (as Chippenham and Swindon aren't on the right map), but that's usually faster via Bristol Temple Meads.

701045 (Fare route) During service disruption between the 12 and 15 December 2022, tickets priced on (00118) VIA UPMINSTER will be valid via Grays. This fare route easement applies in both directions.​

Some trains are being replaced by buses then, so this apparently lets passengers with a "via Upminster" ticket (such as a New Cross Gate-Southend East one) go via Grays.

701046 (Routeing Point) Due to service disruption between 12 and 15 December 2022, customers travelling from Ockendon and Chafford Hundred will be able to travel via Grays. This routeing point easement applies in both directions.​

This makes Grays a valid routeing point for any non-local journey from Ockendon or Chafford Hundred (so at least as far as Barking, Pitsea or Romford).

701047 (Map) During service disruption between 12 and 15 December 2022. Customers from Upminster travelling to Barking may travel via Grays. this map easement applies in both directions.​

And this adds Barking, Grays and Upminster to any mapped routes which could make use of them.

 

[Watershed]

there are London-Swansea trains which are non-stop between Swansea and Patchway.

Perhaps you meant Swindon and Patchway? Going non-stop through Cardiff would be fun

 

[Benjwri]

A Cholsey-Chippenham ticket can also be used that way, but nre.co.uk (for one) only shows it as valid with a double back via Didcot.

Might be for a thread of its own but does this mean you could buy a Didcot - Bath ticket and travel from Cholsey, Goring etc, effectively starting short at Cholsey? Or would this fall foul of it reducing the fare you pay?

 

[kieron]

Perhaps you meant Swindon and Patchway? Going non-stop through Cardiff would be fun

Oops, yes.

Might be for a thread of its own but does this mean you could buy a Didcot - Bath ticket and travel from Cholsey, Goring etc, effectively starting short at Cholsey? Or would this fall foul of it reducing the fare you pay?

You should be able to on those dates if you have a ticket which permits break of journey (which may be anything except an advance ticket in that case). You don't need to look at intermediate fares when planning a journey.

You could go from Cholsey to Chippenham without going via Didcot for the same reason. What you can't do is to buy a ticket with an itinerary which does that. Goring doesn't have the same issue because its NFM64 fares work out differently.

---

The following post was made on 15 December 2022.

---

Some more changes were published in the routeing guide on Tuesday.

Changes from 07 Dec 2022 (416) to 13 Dec 2022 (417).​

​

Easement changes:​

​

Added:​

​

701048 (Fare route) Due to engineering work on the 07, 08 and 15 January 2023. Tickets priced on (00635) VIA WOKING will be valid on journeys via Guildford. this fare route easement applies in both directions.​

There are no trains between Woking and Basingstoke, Guildford and Weybridge. This easement helps people to avoid the buses.

701049 (Map) During engineering work closures on weekdays between27 February and 10 March 2023, impacting journeys to and via Dorchester and Yeovil to the West Country, Bristol and beyond. Customers with tickets routed on (00000) ANY PERMITTED, (00955) GWR ONLY, (00829) VIA YEOVIL, (00818) NOT VIA BRISTOL and (00817 VIA BRISTOL will be able to travel via Southampton and Salisbury. This map easement to apply in both directions​

This is the same as 701013, and adds the lines between Eastleigh, Exeter, Salisbury, Southampton, Westbury and Weymouth to maps. The data for this easement also includes route (01000) . but excludes journeys from, to or via Fareham or Basingstoke.

The amended timetable has not been published yet, but this is for a closure of part of the line between Castle Cary and Weymouth.

701050 (Fare route) Due to engineering work closures on weekdays between 27 February and 10 March 2023, journeys to or via Yeovil on tickets routed on (00829) VIA YEOVIL will be able to travel via Brockenhurst. Tickets priced on route (00955) GWR ONLY will be able to travel via Yeovil Junction and Salisbury. These fare route easements will apply in both directions​

This is the same as the original version of 701014. A "via Yeovil" ticket can be used to avoid the closure mentioned above, and advance tickets may be available on any GWR train which goes through Salibury and Yeovil Junction.

701051 (Routeing Point) During engineering work closures weekdays between 27 February and 10 March 2023, impacting journeys to and via Dorchester South from or via Yeovil Junction, Sherborne, Templecombe, Gillingham (Dorset) and Tisbury. Customers with tickets routed on (00000) ANY PERMITTED, (00955) GWR ONLY, (00829) VIA YEOVIL, (00818) NOT VIA BRISTOL and (00817 VIA BRISTOL will be able to travel via Salisbury and Brockenhurst. This routeing point easement to apply in both directions.​

This one is the same as 701020. It makes Salisbury a valid routeing point for journeys via Brockenhurst so long as the route code is one of the above or (01000) ..

701052 (Fare route) During engineering works between 20 and 23 February 2023, tickets priced on routes (00799) LONDON EVESHAM, (00433) AP EVESHAM and (00805) VIA EVESHAM from Stations between Ledbury and Worcester Shrub Hill to Didcot Parkway and beyond will be valid for travel via Stroud or Cam & Dursley. This fare route easement will apply in both directions.​

The line will be closed between Moreton-in-Marsh and Worcester then.

This easement lets you go via Bristol or Stroud on a journey via Swindon to one of the above stations. It's the same in the other direction, except that it doesn't cover Great Malvern.

Changed (added sections in red, removed ones in green):​

​

701047 (Map) During service disruption between 12 and 15 December 2022. Customers from Upminster, Chafford Hundred, Ockendon, Tilbury Town, East Tilbury and Tilbury Riverside travelling to Barking may travel via Grays. tThis map easement applies in both directions.​

The data for this easement restricts its scope to one of the journeys listed above. The only one which doesn't normally permit travel via Grays and Rainham is Ockendon-Barking, where it's permitted because it requires a rail replacement buses.

 

[kieron]

Some changes to easements were published in the routeing guide yesterday.

Changes from 13 Dec 2022 (417) to 05 Jan 2023 (418).

Easement changes:

Removed:

701033 (Fare route) During engineering works on 22/23 October and 20 November 2022 tickets priced on (00118) VIA UPMINSTER will be valid on journeys via Pitsea. This fare route easement applies in both directions.

701034 (Routeing Point) During engineering works on 22/23 October and 20 November 2022 tickets from or via Basildon will be valid on journeys via Pitsea. This routeing point easement applies in both directions.

701035 (Map) During engineering works between 27 and 31 December 2022, Bristol Parkway station will be closed. This map easement will provide temporary permitted routes via Bristol Temple Meads, Swindon and Kemble, for journeys that normally would travel north/south via Bristol and Gloucester. It will apply in both directions.

701044 (Doubleback) During engineering works between 27 and 31 December 2022 that will close Bristol Parkway railway station. Customers on services travelling via Melksham and Chippenham will be able to doubleback between Swindon and Chippenham. This doubleback easement will expand journey options and apply in both directions.

701045 (Fare route) During service disruption between the 12 and 15 December 2022, tickets priced on (00118) VIA UPMINSTER will be valid via Grays. This fare route easement applies in both directions.

701046 (Routeing Point) Due to service disruption between 12 and 15 December 2022, customers travelling from Ockendon and Chafford Hundred will be able to travel via Grays. This routeing point easement applies in both directions.

701047 (Map) During service disruption between 12 and 15 December 2022. Customers from Upminster, Chafford Hundred, Ockendon, Tilbury Town, East Tilbury and Tilbury Riverside travelling to Barking may travel via Grays. This map easement applies in both directions.​

These have been removed as the dates for them have all passed.

Added:

701053 (Fare route) Due to engineering works between Exeter and Taunton from 20 to 23 March 2023, tickets priced on (00842) VIA TAUNTON, will be valid for Travel via Honiton, Yeovil and Castle Cary. This fare route easement applies in both directions.​

Trains between Castle Cary and Exeter are diverted via Honiton, with buses serving Taunton and Tiverton Parkway.

This easement mean that a "via Taunton" ticket can be used on the diverted trains route. It doesn't affect "AP Taunton" or "AP not via London" tickets, but I don't know if any are offered for those dates.

701054 (Map) Due to engineering works between Exeter and Taunton from 20 to 23 March 2023, tickets priced on (00842) VIA TAUNTON, (00700) NOT VIA LONDON, (00411) AP SLOUGH, (00820) GW ONLY, (00810) NOT VIA READING, (00000) ANY PERMITTED, (00203) GWR SLEEPER & GWR and (00840) VIA HONITON will be valid for Travel on Great Western trains via Honiton, Yeovil and Castle Cary. This map easement will not apply to journeys that include travel via Brockenhurst or Salisbury. This map easement applies in both directions.​

This one adds a mapped route (Exeter-Yeovil-Castle Cary) for the diverted trains. It only applies if your ticket has one of the routes the easement lists, and only if you travel on GWR at some point during your journey.

The route restrictions are, I suspect, intended to discourage people from using tickets with the various "via Honiton" route codes on the diverted trains. As a lot of different route codes appear on tickets which are valid via Exeter and Castle Cary, it inevitably excludes some tickets GWR set. For instance, it excludes the Exmouth-Leamington "via Reading not London" tickets.