Physical Object: ITS Roadway Equipment

Roadway Signal Monitoring and Enforcement

Overview
Requirements
Information Flows
Standards

Overview

'Roadway Signal Monitoring and Enforcement' includes the field elements that monitor vehicles entering a signalized intersection. Information is collected for vehicles illegally entering the intersection, and the signal violation is reported to the enforcement center. Control and monitoring of the signal monitoring and enforcement equipment is provided with an interface to the Traffic Management Center.

This functional object is included in the "ITS Roadway Equipment" physical object.

This functional object is included in the following service packages:

TM26: Signal Enforcement

This functional object is mapped to the following Functional View PSpecs:

Requirements

#	Requirement
01	The field element shall return operational status for the signal monitoring and enforcement roadside equipment to the enforcement agency.
02	The field element shall return operational status for the signal monitoring and enforcement roadside equipment to the controlling traffic center; including logged date and time records of illegal intersection entry.
03	The field element shall include sensors to detect traffic signal violations, under enforcement agency control.
04	The field element shall include sensors to detect traffic signal violations, under traffic control.
05	The field element shall notify an enforcement agency when a traffic signal violation is detected.
06	The field element shall return fault data for the signal monitoring and enforcement to the controlling traffic center for repair.

Information Flows

Source	Flow	Destination
ITS Roadway Equipment	signal violation notification	Enforcement Center
ITS Roadway Equipment	signal control coordination	Other ITS Roadway Equipment
ITS Roadway Equipment	traffic detector coordination	Other ITS Roadway Equipment
ITS Roadway Equipment	video surveillance coordination	Other ITS Roadway Equipment
ITS Roadway Equipment	signal enforcement device status	Traffic Management Center
Other ITS Roadway Equipment	signal control coordination	ITS Roadway Equipment
Other ITS Roadway Equipment	traffic detector coordination	ITS Roadway Equipment
Other ITS Roadway Equipment	video surveillance coordination	ITS Roadway Equipment
Traffic Management Center	signal enforcement device control	ITS Roadway Equipment

Standards

The following table lists the standards associated with the functional object itself (as opposed to standards associated with an interface).

Name	Title
ITE 5201 ATC	Advanced Transportation Controller
ITE 5202 ATC Model 2070	Model 2070 Controller Standard
ITE 5401 ATC API	Application Programming Interface Standard for the Advanced Transportation Controller
NEMA TS2 Traffic Controller Assemblies	Traffic Controller Assemblies with NTCIP Requirements