ATMS07-Regional Traffic Management (Service Package*)

Description

This service package provides for the sharing of traffic information and control among traffic management centers to support regional traffic management strategies. Regional traffic management strategies that are supported include inter-jurisdictional, real-time coordinated traffic signal control systems and coordination between freeway operations and traffic signal control within a corridor. This service package advances the ATMS03-Traffic Signal Control and ATMS04-Traffic Metering service packages by adding the communications links and integrated control strategies that enable integrated, interjurisdictional traffic management. The nature of optimization and extent of information and control sharing is determined through working arrangements between jurisdictions. This package relies principally on roadside instrumentation supported by the Traffic Signal Control and Traffic Metering service packages and adds hardware, software, and fixed-point to fixed-point communications capabilities to implement traffic management strategies that are coordinated between allied traffic management centers. Several levels of coordination are supported from sharing of information through sharing of control between traffic management centers.

Service Package Graphic

TMC Traffic MeteringTMC Regional Traffic ManagementTMC Signal ControlTraffic ManagementTraffic Operations PersonnelOther Traffic ManagementRoadwaysignal control planssignal system configurationtraffic metering statussignal control commandstraffic operator datatraffic operator inputssignal control statustraffic flowtraffic metering controlincident informationtraffic imagestraffic sensor controldevice control requestdevice datadevice statusroad network conditionssignal control device configurationsignal fault data

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Includes Architecture Flows:

Source Architecture Flow Destination In Graphic
Other Traffic Management device control request Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Traffic Management Yes
Other Traffic Management device data Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Traffic Management Yes
Other Traffic Management device status Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Traffic Management Yes
Other Traffic Management incident information Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Traffic Management Yes
Other Traffic Management road network conditions Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Traffic Management Yes
Other Traffic Management traffic images Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Traffic Management Yes
Roadway signal control status Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Traffic Management Yes
Roadway signal fault data Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Traffic Management Yes
Roadway traffic flow Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Traffic Management Yes
Roadway traffic metering status Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Traffic Management Yes
Traffic Management device control request Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Other Traffic Management Yes
Traffic Management device data Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Other Traffic Management Yes
Traffic Management device status Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Other Traffic Management Yes
Traffic Management incident information Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Other Traffic Management Yes
Traffic Management road network conditions Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Other Traffic Management Yes
Traffic Management traffic images Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Other Traffic Management Yes
Traffic Management signal control commands Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Roadway Yes
Traffic Management signal control device configuration Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Roadway Yes
Traffic Management signal control plans Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Roadway Yes
Traffic Management signal system configuration Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Roadway Yes
Traffic Management traffic metering control Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Roadway Yes
Traffic Management traffic sensor control Indicates that the associated architecture flow either has been or will be addressed by ITS Standards Roadway Yes
Traffic Management traffic operator data Traffic Operations Personnel Yes
Traffic Operations Personnel traffic operator inputs Traffic Management Yes
    - This icon indicates that the associated architecture flow either has been or will be addressed by ITS Standards. Select the architecture flow for more information on relevant standards activities.

Associated Planning Factors and Goals

Planning Factor Goal
A. Support the economic vitality of the metropolitan area, especially by enabling global competitiveness, productivity, and efficiency; Support regional economic productivity and development
E. Protect and enhance the environment, promote energy conservation, improve the quality of life, and promote consistency between transportation improvements and State and local planned growth and economic development patterns; Reduce environmental impacts
F. Enhance the integration and connectivity of the transportation system, across and between modes, for people and freight; Enhance the integration and connectivity of the transportation system
G. Promote efficient system management and operation; Increase operational efficiency and reliability of the transportation system

Associated Objective Categories

Objective Category
Arterial Management: Delay
Integration: Connectivity
Special Event Management: Entry/Exit Travel Times
System Efficiency: Cost of Congestion
System Efficiency: Delay
System Efficiency: Duration of Congestion
System Efficiency: Energy Consumption
System Efficiency: Extent of Congestion
System Efficiency: Intensity of Congestion (Travel Time Index)
System Efficiency: Travel Time
System Efficiency: Trip Connectivity
System Reliability: Non-Recurring Delay

Associated Objectives and Performance Measures

Objective Performance Measure
Annual rate of change in regional average commute travel time will not exceed regional rate of population growth through the year Y. Average commute trip travel time (minutes).
Decrease the seconds of control delay per vehicles on arterial roads by X percent in Y years. (Control delay is defined as the portion of the total delay attributed to traffic signal operation for signalized intersections). Control delay seconds per vehicle.
Improve average travel time during peak periods by X percent by year Y. Average travel time during peak periods (minutes).
Increase the miles of arterials in the region operating at level of service (LOS) Z by X percent in Y years. Percent of arterial miles in region operating at LOS Z.
Maintain the rate of growth in facility miles experiencing recurring congestion as less than the population growth rate (or employment growth rate). Percent of lane-miles (or rail) operating at LOS F or V/C > 1.0
Reduce average time to clear event's exiting queue by X percent in Y years. Average time to clear event's exiting queue by year per event.
Reduce average travel time into and out of the event by X percent in Y years. Average travel time away from selected special events to a set of locations over a year.
Reduce average travel time into and out of the event by X percent in Y years. Average travel time to selected special events from a set of locations in the area over a year.
Reduce buffer time index for travelers to multiple similar special events by X percent in Y years. Buffer time index for travelers to multiple similar special events.
Reduce door-to-door trip time by X percent by year Y. Average door-to-door trip time.
Reduce excess fuel consumed due to congestion by X percent by year Y. Excess fuel consumed (total or per capita).
Reduce hours of delay per capita by X percent by year Y. Hours of delay (person-hours).
Reduce hours of delay per capita by X percent by year Y. Hours of delay per capita.
Reduce hours of delay per driver by X percent by year Y. Hours of delay (person-hours).
Reduce hours of delay per driver by X percent by year Y. Hours of delay per driver.
Reduce non-special event VMT in the event area during events by X percent in Y years. Non-special event VMT in the event area during events over a year.
Reduce the annual monetary cost of congestion per capita for the next X years. Cost (in dollars) of congestion or delay per capita.
Reduce the daily hours of recurring congestion on major freeways from X to Y by year Z. Hours per day at LOS F or V/C > 1.0 (or other threshold).
Reduce the number of hours per day that the top 20 most congested roadways experience recurring congestion by X percent by year Y. Hours per day at LOS F or V/C > 1.0 (or other threshold).
Reduce the percentage of facility miles (highway, arterial, rail, etc.) experiencing recurring congestion during the peak period by X percent by year Y. Percent of lane-miles (or rail) operating at LOS F or V/C > 1.0
Reduce the regional average travel time index by X percent per year. Travel time index (the average travel time during the peak period, using congested speeds, divided by the off-peak period travel time, using posted or free-flow speeds).
Reduce the share of major intersections operating at LOS Z by X percent by year Y. Percent of intersections operating at LOS F or V/C > 1.0
Reduce total energy consumption per capita for transportation by X percent by year Y. Total energy consumed per capita for transportation.
Reduce total fuel consumption per capita for transportation by X percent by year Y. Total fuel consumed per capita for transportation.
Reduce total person hours of delay (or travel-time delay per capita) by time period (peak, off-peak) caused by all transient events such as traffic incidents, special events, and work zones. Total person hours of delay during scheduled and/or unscheduled disruptions to travel.
Reduce total person hours of delay (or travel-time delay per capita) by time period (peak, off-peak) caused by scheduled events, work zones, or system maintenance by x hours in y years. Travel time delay during scheduled and/or unscheduled disruptions to travel.
Reduce total person hours of delay (or travel-time delay per capita) by time period (peak, off-peak) caused by unscheduled disruptions to travel. Total person hours of delay during scheduled and/or unscheduled disruptions to travel.

 
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

Classification Category ITS Application Area ITS Application(s)
Intelligent Infrastructure Transportation Management Centers Permanent TMCs Multi-Agency/Co-Located

User Services related to this Service Package:

User Service
1.6 Traffic Control

Transaction Set Diagram





The source graphic, a Windows Metafile (WMF), for the TSD can be downloaded here: TSD

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.

  1. To obtain information about traffic, the Traffic Management Subsystem can control (traffic sensor control) and monitor (traffic flow) sensors in or along the Roadway. Traffic Management Subsystems can share information on traffic conditions (incident information, road network conditions, traffic images) so traffic operations can be coordinated.

  2. Traffic Management Subsystems can share (device control request, device data and device status) monitoring (signal fault data, traffic metering status) and/or control (freeway control data, traffic metering control) of equipment on freeways. Shared monitoring might allow video images from surveillance cameras to be viewed. Shared control might allow surveillance cameras to be panned, tilted or zoomed or ramp meter control where the metering plan is selected based on the timing scheme of the surface street feeding the ramp.

  3. Traffic Management Subsystems share (device control request, device data, device status) monitoring (signal control status, signal fault status) and/or control (signal control commands, signal control device configuration, signal control plans, signal system configuration) of equipment on surface streets. Shared monitoring might include monitoring of traffic signal systems. Shared control might include surveillance cameras that can be panned, tilted or zoomed or selection of traffic signal timing plans during evening hours when a center is not staffed.

  4. The entire process is under the asynchronous monitoring (traffic operator data) and control (traffic operator inputs) of Traffic Operations Personnel.