02-02-2018, 04:27 PM
(This post was last modified: 02-02-2018, 04:28 PM by danbrotherston.)
There is no "forcing" physics. A red signal tells a train to stop but on the extremely rare case where a platform is overrun, nothing can stop the train from moving onto the road. Whether that rare tiny risk is worth the traffic disruption is a reasonable question but in our "don't think just follow the regs" region, that isn't something that was discussed.