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Scroll down to view the service package description, list of elements, responsible agencies (stakeholders), candidate functional areas and requirements, and flows on this diagram.


Service Package Description

This service package supports automated vehicle location and dynamic routing of emergency vehicles. Traffic information, road conditions, and suggested routing information are provided to enhance emergency vehicle routing. Special priority or other specific emergency traffic control strategies can be coordinated to improve the safety and time-efficiency of responding vehicle travel on the selected route(s). The Emergency Management Subsystem provides the routing for the emergency fleet based on real-time conditions and has the option of requesting a route from the Traffic Management subsystem. The Emergency Vehicle may also be equipped with dedicated short range communications for local signal preemption and the transmission of alerts to surrounding vehicles. The service provides for information exchange between care facilities and both the Emergency Management Subsystem and emergency vehicles.

List of Elements on this Diagram
Click on Element Name to go to Element Detail Page.

Element Name Stakeholder
Town of Gilbert TMC Town of Gilbert
Town of Gilbert Traffic Signals Town of Gilbert
Local Fire/EMS Vehicles Local Cities and Municipalities


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
Local Cities and Municipalities Local Fire/EMS Vehicles On-board EV En Route Support This on-board equipment package supports dispatch, routing, and tracking of an emergency vehicle. Dispatch and routing information are received and presented to the driver and vehicle location and status are tracked and provided back to the dispatcher. This equipment package supports traffic signal preemption via short range communication directly with signal control equipment and sends alert messages to surrounding vehicles. It also supports communications with care facilities, sharing patient status and care facility status between the en route emergency vehicle and the care facility.
Town of Gilbert Town of Gilbert TMC 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.
Town of Gilbert Town of Gilbert TMC TMC Incident Dispatch Coordination/Communication This equipment package formulates and manages an incident response that takes into account the incident potential, incident impacts, and resources required for incident management. It supports dispatch of emergency response and service vehicles as well as coordination with other cooperating agencies. It provides access to traffic management resources that provide surveillance of the incident, traffic control in the surrounding area, and support for the incident response. It monitors the incident response and collects performance measures such as incident response and clearance times.


List of Flows on this Diagram
Click on Architecture Flow to go to Page with Applicable ITS Standards.

Source Element Architecture Flow Destination Element
Town of Gilbert Traffic Signals signal control status Town of Gilbert TMC
Town of Gilbert Traffic Signals right-of-way request notification Town of Gilbert TMC
Local Fire/EMS Vehicles local signal preemption request Town of Gilbert Traffic Signals
Town of Gilbert TMC signal control commands Town of Gilbert Traffic Signals

Last updated: 06-24-13