These days one of the major transport system for the passengers is railway.There will be particular departure and arrival times are governed by a timetable.But some times two trains should occupy the same resource.This will be the problem for undue traffic.Re-orientating switches and controlling the signals will be common task for traffic controllers.Recently SINTEF researchers found a new software tool to priorities trains in real time.It was successfully trialled at the Traffic control centre in Stavanger,Norway.
Source: