68802 ⎘
Safety means for rail/road crossing traffic; Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated using conductor circuits controlled by the vehicle
A RAILROAD CROSSING CONTROL SYSTEM WITH AUXILIARY SHUNTING DEVICE
#2Railroad crossing indication device, railroad crossing indication system, and method for displaying information at railroad crossings
#3Route feature identification system and method
#4Train direction detection apparatus and method
#5Route feature identification system and method
#6Systems and methods for predictive maintenance of crossings
#7Method, computer software code, and system for determining a train direction at a railroad crossing
#8Method of improving shunt detection on railroad tracks and railroad highway crossing signal electronic assembly