It certainly adds costs, but it can be automatic or remote systems (e.g. cameras monitored by the signaller, or RADAR/LIDAR systems). However, I don't have an

It certainly adds costs, but it can be automatic or remote systems (e.g. cameras monitored by the signaller, or RADAR/LIDAR systems). However, I don't have an idea whether there are 10s or 100s of crossings. There are lines at roughly this speed in Europe with level crossings, e.g. the UK (125mph), Finland (85mph), Norway (100mph), Sweden (125mph), but there's not much detail on the speeds allowed for various types of crossing. https://en.wikipedia.org/wiki/Level_crossings_by_country https://en.wikipedia.org/wiki/Level_crossings_by_country https://en.wikipedia.org/wiki/Level_crossings_in_the_United_Kingdom https://en.wikipedia.org/wiki/Level_crossings_in_the_United_...