Given the problems caused by cars in the National Park I have very much wondered, indeed, if the wires that are proposed to go up should actually be 750VDC ones, and the line converted to a tramway down the road to Bowness at least, or even Ambleside. It would cost, but it would take a LOT of cars off the road if connections were good.
Professor Joad might well have said "it all depends on what you mean by a LOT."
It would certainly cost a LOT of money and generate a LOT of protests - anything new in National Parks is almost guaranteed to trigger a nerve for some, or several, pro-active lobbying groups!
However taking a LOT of cars off the Lake District roads if connections were good is where it falls down. The Lake District is not all that big in area but communications are slow. The 555 bus up through Kendal and Ambleside to Keswick is good, as is the X5 from Workington to Penrith but most of the others are relatively infrequent and don't tempt many motorists out of their cars.
I only lived in the area for a year, and a long time ago, but I can't imagine many of the cars loaded with masses of kit being removed by a tram/train for such a short additional distance, nor can I imagine many local people using it either. If measures were introduced to charge or licence motoring in the National Park, with reductions for local residents, that might reduce numbers considerably - and lose a lot of trade for local businesses.
Back to simply electrifying the current line and promoting the current services, although a loop to allow half hourly at peak times would be good. .