The STRADDLING BUS extends just outside the box space of two lanes, and does not impact those two lanes, keep as is, but this special bus travels overhead. WATCH
I think the idea has legs (pun intended). However, if we are going to avoid all of the at-grade traffic problems that will inevitably occur with this new device, it would be necessary to build a more separated facility. In my opinion, this thing FAILS on the corners, on the turns. It seems like a perfect idea for any straight corridor. So maybe the train could just operate on straight paths ONLY, and transfers could take place at perpendicular locations. This would avoid the conflicts of curves mixed with at-grade traffic, which I think is a critical fail. Its kind of like LRT, but elevated, but unlike LRT it has a much much bigger footprint that has to be accommodated. This means loss of capacity for at-grade traffic, to stop nearly all traffic at intersections while this thing navigates a turn.
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Grant Johnson, registered Traffic Engineer, shares insights and experiences from around the world.