Ask HN: Creating an app which can help with an un-manned train level crossing

I know this question may sound odd, but using the data from the various train services (like Amtrack in US, IRCTC in India), is it technically feasible to create a smartphone app which could warn car drivers about the chances of running into a train at an unmanned level crossing.

This accident today has made me think about such an app.

http://www.ndtv.com/article/south/five-killed-as-train-hits-car-at-unmanned-crossing-in-kerala-271091