While waiting for Rrrr to pick me at the Providence RI tran station: My favorite due to the way designs created by all the catenary equipment: Commuter Rail to Follow:
Boxcab - Maybe is it a local or East Coast thing. Could be wider in less congested areas or along straight track. I think along a curve you would need more to keep it centered. Triplex, Thanks! Maybe because they are not perfect shots. Always something in the way. Sorta slows them down. Providence in particular these trans were moving quite slow.