This service package includes traffic detectors, other surveillance equipment, the supporting field equipment, and fixed-point to fixed-point communications to transmit the collected data back to the Traffic Management Subsystem. The derived data can be used locally such as when traffic detectors are connected directly to a signal control system or remotely (e.g., when a CCTV system sends data back to the Traffic Management Subsystem). The data generated by this service package enables traffic managers to monitor traffic and road conditions, identify and verify incidents, detect faults in indicator operations, and collect census data for traffic strategy development and long range planning. The collected data can also be analyzed and made available to users and the Information Service Provider Subsystem.
Service Package Graphic
Get the Source Graphic, a Windows Metafile (WMF), in ZIP format.
About this Graphic
Includes Equipment Packages and Subsystems:
Includes Architecture Flows:
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been or will be addressed by ITS Standards. Select the architecture flow
for more information on relevant standards activities.
Associated Planning Factors and Goals
Associated Objective Categories
Associated Objectives and Performance Measures
|Increase the level of transportation management center (TMC) field hardware (cameras, variable message signs, electronic toll tag readers, ITS applications, etc.) by X percent by year Y.
||Total amount of TMC equipment.
|Increase the percent of major special events using ITS-related assets (e.g., roadside cameras, dynamic message signs, vehicle speed detectors) to detect and manage special event entry/exit bottlenecks and incidents by X percent in Y years.
||Percent of special events using ITS-related assets to detect and manage incidents/bottlenecks at entry/exit routes of the events.
|Increase the percent of modes in the region that share their traveler information with other modes in the region to 100 percent by Y year.
||Percent of modes in the region that share their traveler information with other modes.
|Increase the percent of regional transportation system monitored by the TMC for real-time performance.
||Percent of regional transportation system monitored by the TMC for real-time performance.
|Increase the percent of the transportation system in which travel conditions can be detected remotely via CCTV, speed detectors, etc. to X percent by Y year.
||Percent of the transportation system in which travel conditions can be detected remotely via CCTV, speed detectors, etc.
|Increase the percent of transportation facilities whose owners share their traveler information with other agencies in the region to X percent by Y year.
||Percent of transportation facilities whose owners share their traveler information with other agencies in the region.
|X percent of major and minor arterials are equipped and operating with arterial link traffic data detection stations (appropriate technology) per Z distance by year Y.
||Percent of major and minor arterials equipped and operating with arterial link traffic data detection stations (appropriate technology) per Z distance.
|X percent of major and minor arterials are equipped and operating with closed circuit television (CCTV) cameras per Z distance by year Y.
||Percent of major and minor arterials equipped and operating with closed circuit television (CCTV) cameras per Z distance.
Since the mapping between objectives and service packages is not always straight-forward and often situation-dependent, these mappings should only be used as a starting point. Users should do their own analysis to identify the best service packages for their region.
Related ITS Applications of ITS Taxonomy
||ITS Application Area
User Services related to this Service Package:
Transaction Set Diagram
The source graphic, a Windows Metafile (WMF), for the TSD can be downloaded here:
The following discusses how the National ITS Architecture provides the transportation service described by this service package. Each numbered item describes the operation of that portion of the service package identified with the corresponding number on the transaction set diagram.
The entire process is under the asynchronous monitoring (traffic operator data) and control (traffic operator inputs) of Traffic Operations Personnel.
Data collected and sent to the Traffic Management Subsystem can be associated with links and nodes of the transportation network. Map updates from a Map Update Provider keep this model of the transportation network current, and are available upon request by the Traffic Management Subsystem (map update request).
Traffic characteristics represent the conditions sensed by the field equipment. Field sensor parameters can be initialized by the Traffic Management Subsystem, and configured field sensors can send data (traffic flow) back to the Traffic Management Subsystems. The traffic sensor control message can be optional; in that sensors may be hard-configured in the field, or the message can be a subscription relationship to traffic flow (i.e. one traffic sensor control message may result in a continuous stream of traffic flow information as per the traffic sensor control message until the next traffic sensor control message). In addition, the (traffic sensor control) message can control the sharing of information directly between field equipment deployments (roadway equipment coordination).
Similarly, the Traffic Management Subsystem can control video equipment (video surveillance control) (e.g. pan/tilt/zoom) and receive traffic images in return.
All (or selected) collected (road network conditions and traffic images) can be shared with Information Service Providers.