ATMS05-HOV Lane Management (Service Package*)

Description

This service package manages HOV lanes by coordinating freeway ramp meters and connector signals with HOV lane usage signals. Preferential treatment is given to HOV lanes using special bypasses, reserved lanes, and exclusive rights-of-way that may vary by time of day. Vehicle occupancy detectors may be installed to verify HOV compliance and to notify enforcement agencies of violations.

Service Package Graphic

Roadway HOV ControlRoadway Equipment CoordinationVehicle Traffic Probe SupportTMC HOV Lane ManagementCollect Traffic SurveillanceEnforcement AgencyDMVRoadwayOther RoadwayVehicleDriverTraffic Managementlane management informationregistrationlicense requesthov datatraffic flowtraffic violation notificationroadway equipment coordinationlane management controltraffic sensor controldriver updatesvehicle occupancydriver information

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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
G. Promote efficient system management and operation; Increase operational efficiency and reliability of the transportation system

Associated Objective Categories

Objective Category
Freeway Management: HOV Lanes
Freeway Management: Managed Lanes
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: Vehicle Miles Traveled

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).
Ensure that all HOV lanes carry a throughput of at least Y persons per hour. Vehicle volume and persons per hour per lane.
Ensure that all HOV lanes operate at no less than 50 mph during their hours of operation. Minimum and Average speeds in HOV lanes.
Ensure that all HOV lanes operate with a volume of at least X vehicles per hour. Vehicle volume and persons per hour per lane.
Ensure that all managed lanes (e.g., HOV lanes, HOT lanes) carry a throughput of at least Y persons per hour. Passenger volumes in managed lanes.
Ensure that all managed lanes (e.g., HOV lanes, HOT lanes) operate at no less than 50 mph during their hours of operation. Average speeds in managed lanes.
Ensure that all managed lanes (e.g., HOV lanes, HOT lanes) operate with a volume of at least X vehicles per hour. Vehicle volumes in managed lanes.
Improve average travel time during peak periods by X percent by year Y. Average travel time during peak periods (minutes).
Increase the average vehicle occupancy rate in HOV lanes to X by year Y. Vehicle volume and persons per hour per lane.
Increase the compliance rate for HOV lanes to X by year Y. Number of vehicles violating HOV restrictions.
Increase the miles of managed lanes in the region from X to Y by year Z. Miles of managed lanes.
Increase the number of HOV lane miles from X to Y by year Z. Total number of HOV lane miles in a region.
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
Provide options for reliable travel times for carpools and transit on at least X percent of the freeway network by year Y. Share of freeway network with HOV lanes.
Provide options for reliable travel times for certain types of travel (e.g., transit, carpools, trucks, etc.) on at least X percent of the freeway network by year Y. Share of freeway network with managed lanes (by class of traveler).
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 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 vehicle miles traveled per capita by X percent by year Y. Average VMT per capita per day, per week, or per year.

 
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 Arterial Management Lane Management High-Occupancy Vehicle Facilities
Intelligent Infrastructure Freeway Management Enforcement High-Occupancy Vehicle Facilities
Intelligent Infrastructure Freeway Management Lane Management High-Occupancy Vehicle Facilities

User Services related to this Service Package:

User Service
1.6 Traffic Control
1.8 Travel Demand Management

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 asynchronously monitors the volume, speed and other parameters indicating the flow of vehicles (traffic flow) along the roadway. The Traffic Management Subsystem can configure, download timings and otherwise control (lane management control) equipment along a freeway to control traffic and especially configure lanes for HOV operations. Lane control indicators and message signs can provide driver information indicating the status of the HOV lanes. Alternatively, control equipment may receive control inputs directly from sensor equipment along the roadway (roadway equipment coordination) through peer-to-peer, master-slave or other configurations. Traffic Management Subsystem can monitor the status of the HOV lane control equipment (lane management information).

  2. Sensors in the Roadway Subsystem monitor passing vehicles to measure vehicle occupancy (vehicle characteristics).

  3. Alternatively, the Vehicle Subsystem may count occupants and monitor their positioning within the vehicle to enhance vehicle safety (basic vehicle measures). The collected vehicle occupancy information may also be sent to the Roadway Subsystem using Field-Vehicle Communications. Vehicle occupancy that is measured by the vehicle is also available to the driver (driver updates).

  4. The Traffic Management Subsystem monitors the flow of traffic and/or vehicle occupancies in HOV lanes (hov data). When a violation in the use of an HOV lane is detected, the Traffic Management Subsystem may contact the DMV (license request) to determine the registered owner of vehicle (registration). Violations (traffic violation notification) are reported to an Enforcement Agency.