MadMac
Member
Jus stumbled on to this topic. The Glasgow Signal Design office was responsible for the C-APT transponder placement etc, and the people who normally dealt with temporary speed restrictions handled this, an any transponders that fell within a TSR approach would have to be shielded.
When APT-P was doing test runs from Shields, we had a rep aboard the train, and I was duly designated for a week. There was a dot-matrix printer which printed out the speed in km/h with the digits reversed so that, in theory, the drivers didn’t know their speed was being monitored. It was supposed to go to Carnforth, but only made it there on one day. It didn’t run on three, and ground to a halt at Carstairs on the other after the pantograph dropped and took a long time to get back up - I think we eventually made it to Lockerbie.
At Carnforth, it was dragged round the triangle to get the recording gear on the front end for the return journey.
When APT-P was doing test runs from Shields, we had a rep aboard the train, and I was duly designated for a week. There was a dot-matrix printer which printed out the speed in km/h with the digits reversed so that, in theory, the drivers didn’t know their speed was being monitored. It was supposed to go to Carnforth, but only made it there on one day. It didn’t run on three, and ground to a halt at Carstairs on the other after the pantograph dropped and took a long time to get back up - I think we eventually made it to Lockerbie.
At Carnforth, it was dragged round the triangle to get the recording gear on the front end for the return journey.