TM13: ADOT Rail Grade Crossing
Need Area Description
This service package manages highway traffic at highway-rail intersections (HRIs) where operational requirements do not dictate more advanced features (e.g., where rail operational speeds are less than 80 miles per hour). Both passive (e.g., the crossbuck sign) and active warning systems (e.g., flashing lights and gates) are supported. (Note that passive systems exercise only the single interface between the roadway subsystem and the driver in the architecture definition.) These traditional HRI warning systems may also be augmented with other standard traffic management devices. The warning systems are activated on notification by interfaced wayside equipment of an approaching train. The equipment at the HRI may also be interconnected with adjacent signalized intersections so that local control can be adapted to highway-rail intersection activities. Health monitoring of the HRI equipment and interfaces is performed; detected abnormalities are reported to both highway and railroad officials through wayside interfaces and interfaces to the traffic management subsystem.
Need Area Type
Safety
Service Package
TM13: ADOT Rail Grade CrossingIncludes Needs
| Number | Need |
|---|---|
| 01 | Traffic Operations need to be able to warn drivers of crossing closures or potential crash-imminent situations with a crossing or oncoming train in time for the driver to take appropriate action. |