Hartford Area ITS Architecture Update

Service Packages For: APTS - APTS09-3


  APTS09-3  
Scroll down to view list of elements, responsible agencies (stakeholders), candidate functional areas and requirements, and flows on this diagram.

List of Elements on this Diagram
Click on Element Name to go to Element Detail Page.
Element Name Stakeholder
City of Hartford Traffic Operations Center City of Hartford Public Works
Capitol Region TOC Capitol Region TOC
City of Hartford Traffic Signals City of Hartford Public Works
Other Public Transportation Providers Transit Dispatch Other Public Transportation Providers
Other Public Transportation Providers Transit Vehicles Other Public Transportation Providers

List of Stakeholder Elements and Roles on this Diagram
Click on Element Name to go to Page with Element Details.
Click on Functional Area/Role to go to Page with Candidate Functional Requirements.
Stakeholder Element Name Functional Area/Role Functional Area Description
Capitol Region TOC Capitol Region TOC TMC Signal Control This equipment package provides the capability for traffic managers to monitor and manage the traffic flow at signalized intersections. This capability includes analyzing and reducing the collected data from traffic surveillance equipment and developing and implementing control plans for signalized intersections. Control plans may be developed and implemented that coordinate signals at many intersections under the domain of a single traffic management subsystem and are responsive to traffic conditions and adapt to support incidents, preemption and priority requests, pedestrian crossing calls, etc.
Capitol Region TOC Capitol Region TOC TMC Multimodal Coordination This equipment package supports center-to-center coordination between the Traffic Management and Transit Management Subsystems. It monitors transit operations and provides traffic signal priority for transit vehicles on request from the Transit Management Subsystem.
City of Hartford Public Works City of Hartford Traffic Operations Center TMC Signal Control This equipment package provides the capability for traffic managers to monitor and manage the traffic flow at signalized intersections. This capability includes analyzing and reducing the collected data from traffic surveillance equipment and developing and implementing control plans for signalized intersections. Control plans may be developed and implemented that coordinate signals at many intersections under the domain of a single traffic management subsystem and are responsive to traffic conditions and adapt to support incidents, preemption and priority requests, pedestrian crossing calls, etc.
City of Hartford Public Works City of Hartford Traffic Operations Center TMC Multimodal Coordination This equipment package supports center-to-center coordination between the Traffic Management and Transit Management Subsystems. It monitors transit operations and provides traffic signal priority for transit vehicles on request from the Transit Management Subsystem.
City of Hartford Public Works City of Hartford Traffic Signals Roadway Signal Priority This equipment package includes the field elements that receive signal priority requests from transit vehicles approaching a signalized intersection. The request for priority may or may not be granted, based on the overall traffic situation at the intersection, adherence to the schedule of the transit vehicle, etc. If priority is granted, the operation of the traffic signal is adjusted to give an early green indication or hold a green indication that is already displaying
Other Public Transportation Providers Other Public Transportation Providers Transit Dispatch Transit Center Signal Priority The equipment package monitors transit schedule performance and generates requests for transit priority on routes and at certain intersections. This equipment package may coordinate with the Traffic Management Subsystem to provide transit priority along the selected route. It also coordinates with the Transit Vehicle Subsystem to monitor and manage local transit signal priority requests at individual intersections.
Other Public Transportation Providers Other Public Transportation Providers Transit Vehicles On-board Transit Signal Priority This on-board equipment package provides the capability for transit vehicles to request signal priority at signalized intersections, ramps, and interchanges through short range communication directly with traffic control equipment at the roadside.

List of Flows on this Diagram
Click on Architecture Flow to go to Page with Applicable ITS Standards.
Source Element Architecture Flow Destination Element
Other Public Transportation Providers Transit Dispatch traffic control priority request City of Hartford Traffic Operations Center
City of Hartford Traffic Signals signal control status City of Hartford Traffic Operations Center
City of Hartford Traffic Signals right-of-way request notification City of Hartford Traffic Operations Center
Other Public Transportation Providers Transit Vehicles local signal priority request City of Hartford Traffic Signals
Capitol Region TOC signal control commands City of Hartford Traffic Signals
City of Hartford Traffic Operations Center signal control commands City of Hartford Traffic Signals
Capitol Region TOC traffic control priority status Other Public Transportation Providers Transit Dispatch
City of Hartford Traffic Operations Center traffic control priority status Other Public Transportation Providers Transit Dispatch
Other Public Transportation Providers Transit Vehicles transit vehicle schedule performance Other Public Transportation Providers Transit Dispatch
Other Public Transportation Providers Transit Dispatch transit schedule information Other Public Transportation Providers Transit Vehicles
Other Public Transportation Providers Transit Dispatch traffic control priority request Capitol Region TOC
City of Hartford Traffic Signals signal control status Capitol Region TOC
City of Hartford Traffic Signals right-of-way request notification Capitol Region TOC