Patent ID: 9150229
Filing Date: 2015-10-06
Classification: B61L

Abstract:
1. A method comprising: receiving one or more absolute times associated with movement of a vehicle system, the one or more absolute times communicated from the vehicle system to notify of at least one of an arrival or departure of the vehicle system at a crossing between a first route being traveled by the vehicle system and a second route, the one or more absolute times specified in accordance with a synchronization scheme used by additional entities in addition to the vehicle system; modifying at least one of the one or more absolute times into a first relative time, the first relative time specified with reference to a particular event; and controlling one or more warning devices using the first relative time, the one or more warning devices controlled to at least one of notify one or more other vehicles traveling along the second route of the at least one of arrival or departure of the vehicle system at the crossing or prevent the one or more other vehicles from traveling through the crossing along the second route.