Physical Object: ITS Roadway Equipment
Roadway Signal Preemption
'Roadway Signal Preemption' includes the field elements that receive signal preemption requests from emergency vehicles approaching a signalized intersection and overrides the current operation of the traffic signals to stop conflicting traffic and grant right-of-way to the approaching vehicle.
This functional object is included in the "ITS Roadway Equipment" physical object.
This functional object is included in the following service packages:
This functional object is mapped to the following Functional View PSpecs:
|01||The field element shall respond to signal preemption requests from emergency vehicles.|
|02||The field element shall inform the controlling center when preemption requests have been received.|
|03||The field element shall send the preemption request to the signal controller to immediately preempt the signal for the requested direction.|
The following table lists the standards associated with the functional object itself (as opposed to standards associated with an interface).
|ITE ATC||Advanced Transportation Controller|
|ITE ATC API||Application Programming Interface Standard for the Advanced Transportation Controller|
|ITE ATC Model 2070||Model 2070 Controller Standard|
|NEMA TS2 Traffic Controller Assemblies||Traffic Controller Assemblies with NTCIP Requirements|