[vertex-four]

Lots of rail is third rail... in London. The entire rest of the country uses overhead lines.

We have been phasing out level crossings wherever possible though.

[ben_w]

South coast was still third rail, last I checked. Has Wales been upgraded since I left? Not that it matters if the power supply affects the number of crossings and those crossings are supposed to be the cause of accidents, new crossings will be rarely built.