[norwaypinesavage]

"If you need an accelerometer to navigate a train, you’re on the wrong track, Casey Jones."

Unless, of course, you wat to make sure there's not another train on the same track or siding. Have you ever seen an overpass for trains, like you see for automobiles?

[Fightin Whitey]

Have you ever seen an overpass for trains, like you see for automobiles?

Thanks for that.

Some folks gotta get out more.

[Lonesome in Massachussets]

Knowing your location tells you nothing about the location of another train. Train tracks are well instrumented, and keeping trains from colliding is a dispatch job, not a navigator’s.

[semaj]

“Unless, of course, you wat to make sure there’s not another train on the same track or siding. Have you ever seen an overpass for trains, like you see for automobiles? “

... or you’re operating a train that lays its own track.