Lee County-wide Emergency/Transit /Pre-Emption System

Project Description: Lee County–wide Emergency /Transit Pre–Emption System ties the ATMS network to the Emergency Management System (EMS) and LeeTran to improve emergency response and transit on–time reliability.

Project Status: Planned

Project Stakeholders:

• County Public Safety Agencies
• Lee County DOT
• LeeTran

Project Service Packages:

• PS03: Emergency Vehicle Preemption (Lee County /County Fire/EMS)
• PS01: Emergency Call-Taking and Dispatch (Lee County /County Fire/EMS)
• PT09: Transit Signal Priority (LeeTran)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
emergency dispatch requests	County Fire EMS/Rescue Dispatch	County Fire EMS/Rescue Vehicles	Planned
emergency vehicle tracking data	County Fire EMS/Rescue Vehicles	County Fire EMS/Rescue Dispatch	Planned
incident information	Lee County-Wide Advanced Traffic Management System	County Fire EMS/Rescue Dispatch	Planned
local signal preemption request	County Fire EMS/Rescue Vehicles	Lee County and Cities Field Equipment	Existing
local signal priority request	LeeTran Fixed Route Transit Vehicles	Lee County and Cities Field Equipment	Planned
right-of-way request notification	Lee County and Cities Field Equipment	Lee County-Wide Advanced Traffic Management System	Planned
signal control commands	Lee County-Wide Advanced Traffic Management System	Lee County and Cities Field Equipment	Planned
signal control status	Lee County and Cities Field Equipment	Lee County-Wide Advanced Traffic Management System	Planned
traffic control priority request	LeeTran Transit Operations Center	Lee County-Wide Advanced Traffic Management System	Planned
transit vehicle schedule performance	LeeTran Fixed Route Transit Vehicles	LeeTran Transit Operations Center	Planned

Project Functional Requirements (Element - Functional Object):

• County Fire EMS/Rescue Dispatch - Emergency Call-Taking
• 3: The emergency call-taking center shall receive emergency call information from vehicles and present the possible incident information to the emergency system operator.
• 4: The emergency call-taking center shall receive emergency call information from other emergency management centers, e.g. mayday service providers, and present the possible incident information to the emergency system operator.


• County Fire EMS/Rescue Dispatch - Emergency Dispatch
• 1: The center shall dispatch emergency vehicles to respond to verified emergencies under center personnel control.
• 3: The center shall relay location and incident details to the responding vehicles.


• County Fire EMS/Rescue Vehicles - EV On-Board En Route Support
• 2: The emergency vehicle, including roadway service patrols, shall send the vehicle's location and operational data to the center for emergency management and dispatch.
• 5: The emergency vehicle shall send requests to traffic signal control equipment at the roadside to preempt the signal.


• Lee County and Cities Field Equipment - Roadway Signal Control
• 1: The field element shall control traffic signals under center control.
• 10: The field element shall receive request for transit vehicle signal priority.
• 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.


• Lee County and Cities Field Equipment - Roadway Signal Preemption
• 1: The field element shall respond to signal preemption requests from emergency vehicles.


• Lee County-Wide Advanced Traffic Management System - TMC Signal Control
• 1: The center shall remotely control traffic signal controllers.
• 10: The center shall adjust signal timing in respond to a signal prioritization, signal preemption, pedestrian call, multi-modal crossing activation, or other requests for right-of-way.
• 14: The center shall support requests from emergency management centers to provide responding emergency vehicles with signal preemption.


• LeeTran Fixed Route Transit Vehicles - Transit Vehicle Signal Priority
• 1: The transit vehicle shall determine the schedule deviation and estimated times of arrival (ETA) at transit stops.
• 3: The transit vehicle shall send the schedule deviation data and status of priority requests to the transit vehicle operator and provide the capability for the transit vehicle operator to control the priority system.


• LeeTran Transit Operations Center - Transit Center Priority Management
• 1: The center shall analyze transit vehicle schedule performance to determine the need for priority along certain routes or at certain intersections.

Standards:

• US: GTFS real-time - Secure Wireless Internet (ITS)
• 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
• US: TCIP - Secure Internet (ITS)
• US: TMDD - NTCIP Messaging

Project Operational Concepts:

Roles and Responsibilities

• Lee County DOT
• Monitor traffic images and traffic flow data through CCTVs and field sensors, and maintain operational control of its own field equipment.
• Operate traffic signal systems for Lee County.
• Provide emergency signal preemption for county fire and county EMS agencies for signals at Fire/EMS stations
• Provide emergency signal preemption for local fire/EMS agencies.
• Provide signal priority for transit.


• LeeTran
• Obtain traffic signal priority from the Lee County ATMS using Lee County roadside field equipment for LeeWay fixed-route transit vehicles.


• County Public Safety Agencies
• Coordinate emergency management activities with other traffic and emergency management agencies.
• Install and maintain signal preemption equipment.

Last Updated 4/18/2024