City of Naples Emergency Signal Preemption - Vehicles

Project Description: This project would deploy emergency signal preemption for both police and fire in the City of Naples. This project covers the retrofitting emergency vehicles portion of emergency signal preemption.

Project Status: Planned

Project Stakeholders:

• City of Naples
• Local Agencies

Project Service Packages:

• PS03: Emergency Vehicle Preemption (City of Naples/Local Fire/EMS)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
local signal preemption request	Local Fire/EMS Vehicles	City of Naples Traffic Control Equipment	Ongoing
right-of-way request notification	City of Naples Traffic Control Equipment	City of Naples Advanced Traffic Management System	Existing
signal control commands	City of Naples Advanced Traffic Management System	City of Naples Traffic Control Equipment	Existing
signal control plans	City of Naples Advanced Traffic Management System	City of Naples Traffic Control Equipment	Existing
signal control status	City of Naples Traffic Control Equipment	City of Naples Advanced Traffic Management System	Existing

Project Functional Requirements (Element - Functional Object):

• City of Naples Advanced Traffic Management System - Emergency Routing
• 9: The center shall provide the capability to request special traffic control measures, such as signal preemption, from the traffic management center to facilitate emergency vehicle progress along the suggested route.


• City of Naples Advanced Traffic Management System - TMC Signal Control
• 1: The center shall remotely control traffic signal controllers.


• City of Naples Traffic Control Equipment - Roadway Signal Control
• 1: The field element shall control traffic signals under center control.
• 15: The field element shall receive requests for emergency vehicle signal preemption.
• 4: The field element shall report the current signal control information to the center.
• 5: The field element shall report current preemption status to the center.


• City of Naples Traffic Control Equipment - Roadway Signal Preemption
• 1: The field element shall respond to signal preemption requests from emergency vehicles.
• 2: The field element shall inform the controlling center when preemption requests have been received.


• Local Fire/EMS Vehicles - EV On-Board En Route Support
• 5: The emergency vehicle shall send requests to traffic signal control equipment at the roadside to preempt the signal.

Standards:

• US: NTCIP Signal Priority - SNMPv3/TLS
• US: NTCIP Signal System Masters - SNMPv3/TLS
• US: NTCIP Traffic Signal - SNMPv3/TLS
• US: SAE Signal Preemption - WAVE TCP

Project Operational Concepts:

Roles and Responsibilities

• Local Agencies
• Install and maintain signal preemption equipment.


• City of Naples
• Coordinate traffic information and traffic control with Collier County.
• Operate traffic signal systems for the City of Naples.
• Provide emergency signal preemption for local fire/EMS agencies.

Last Updated 5/25/2023