Related, shouldn't it be possible to get data from rail signalling radios, and infer when a train is blocking a level crossing, and mark a temporary closure on that road so traffic is routed around it?<p>In the US at least, trains sometimes block crossings for upwards of 10 minutes, and it can be very worthwhile to drive around. Doubly so if you could know en-route and seamlessly reroute, rather than having to approach the crossing to discover the closure.