St. Johns County Bridge Notification System

Project Description: This project would create a bridge notification system that will alert motorists of bridge–related traffic incidents via DMS and traveler alerts.

Project Status: Ongoing

Project Stakeholders:

• Counties and Cities
• St. Johns County Traffic and Transportation Department
• St. Johns County/City of St. Augustine
• Travelers

Project Service Packages:

• TI02: Personalized Traveler Information (St. Johns County/St. Augustine)
• TM06: Traffic Information Dissemination (St. Johns County Traffic Signal System)
• TM18: Drawbridge Management (Bridge Notification System)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
interactive traveler information	St. Johns County/City of St. Augustine Traveler Information System	Private Travelers Personal Computing Devices	Ongoing
multimodal crossing status	County and Local Drawbridge Systems	St. Johns County Field Equipment	Ongoing
multimodal crossing status	County and Local Drawbridge Systems	St. Johns County TMC	Ongoing
right-of-way request notification	St. Johns County Field Equipment	St. Johns County TMC	Ongoing
road network conditions	St. Johns County TMC	St. Johns County/City of St. Augustine Traveler Information System	Ongoing
roadway dynamic signage data	St. Johns County TMC	St. Johns County Field Equipment	Ongoing
roadway dynamic signage status	St. Johns County Field Equipment	St. Johns County TMC	Ongoing
signal control commands	St. Johns County TMC	St. Johns County Field Equipment	Ongoing
signal control status	St. Johns County Field Equipment	St. Johns County TMC	Ongoing
traveler alerts	St. Johns County/City of St. Augustine Traveler Information System	Private Travelers Personal Computing Devices	Ongoing
traveler request	Private Travelers Personal Computing Devices	St. Johns County/City of St. Augustine Traveler Information System	Ongoing
user profile	Private Travelers Personal Computing Devices	St. Johns County/City of St. Augustine Traveler Information System	Ongoing

Project Functional Requirements (Element - Functional Object):

• Private Travelers Personal Computing Devices - Personal Interactive Traveler Information
• 1: The personal traveler interface shall receive traffic information from a center and present it to the traveler upon request.
• 6: The personal traveler interface shall receive wide-area alerts and present it to the traveler.
• 10: The personal traveler interface shall base requests from the traveler on the traveler's current location or a specific location identified by the traveler, and filter the provided information accordingly.
• 11: The personal traveler interface shall support traveler input in audio or manual form.
• 12: The personal traveler interface shall present interactive information to the traveler in audible or visual forms consistent with a personal device, and suitable for travelers with hearing and vision physical disabilities.
• 13: The personal traveler interface shall store frequently requested or used data, including the traveler's identity, home and work locations, etc.
• 14: The personal traveler interface shall receive travel alerts and present them to the traveler. Relevant alerts are provided based on pre-supplied trip characteristics and preferences.
• 15: The personal traveler interface shall accept personal preferences, recurring trip characteristics, and traveler alert subscription information from the traveler and send this information to a center to support customized traveler information services.
• 17: The personal traveler interface shall receive traveler information including traffic and road conditions, advisories, incidents, payment information, transit services, parking information, weather information, and other travel-related data updates and confirmations.


• St. Johns County Field Equipment - Roadway Multimodal Crossing Control
• 1: The field element shall include sensors to monitor requests from non-highway traffic to cross at multimodal crossings for specified durations (such as draw bridges and miscellaneous other interference crossings between highway traffic and other modes such as river traffic, aircraft, etc.); the sensors are under center control.
• 2: The field element shall include signals to control traffic at multimodal crossings on surface streets, under center control.
• 3: The field element shall include driver information systems (such as dynamic messages signs, highway advisory radios (HAR), and equipment that controls warning lights and gates) that advise drivers at multimodal crossings, under center control.
• 4: The field element shall provide operational status for the sensors, signals, and driver information systems equipment at multimodal crossings to the center.
• 5: The field element shall provide fault data for the sensors, signals, and driver information systems equipment at multimodal crossings to the center for repair.
• 6: The field element shall forward all requests for right-of-way at multimodal crossings to the controlling center.


• St. Johns County Field Equipment - Roadway Traffic Information Dissemination
• 1: The field element shall include dynamic message signs for dissemination of traffic and other information to drivers, under center control; the DMS may be either those that display variable text messages, or those that have fixed format display(s) (e.g. vehicle restrictions, or lane open/close).
• 3: The field element shall provide operational status for the driver information systems equipment (DMS, HAR, etc.) to the center.
• 4: The field element shall provide fault data for the driver information systems equipment (DMS, HAR, etc.) to the center for repair.


• St. Johns County TMC - TMC Multimodal Crossing Management
• 1: The center shall remotely control traffic signal controllers for use at major multimodal crossings.
• 2: The center shall remotely control driver information systems (such as dynamic messages signs, highway advisory radios (HAR), and equipment that controls warning lights and gates) to notify drivers of closure durations and times at multimodal crossings.
• 3: The center shall collect operational status for the equipment at multimodal crossings.
• 4: The center shall collect fault data for the equipment at multimodal crossings for repair.
• 5: The center shall distribute multimodal crossing information to other centers for dissemination to travelers.


• St. Johns County TMC - TMC Traffic Information Dissemination
• 1: The center shall remotely control dynamic messages signs for dissemination of traffic and other information to drivers.
• 3: The center shall collect operational status for the driver information systems equipment (DMS, HAR, etc.).
• 4: The center shall collect fault data for the driver information systems equipment (DMS, HAR, etc.) for repair.
• 5: The center shall retrieve locally stored traffic information, including current and forecasted traffic information, road and weather conditions, traffic incident information, information on diversions and alternate routes, closures, and special traffic restrictions (lane/shoulder use, weight restrictions, width restrictions, HOV requirements), and the definition of the road network itself.


• St. Johns County/City of St. Augustine Traveler Information System - TIC Data Collection
• 1: The center shall collect, process, and store traffic and highway condition information, including incident information, detours and road closures, event information, recommended routes, and current speeds on specific routes.
• 2: The center shall select real-time information on the state of the regional transportation system including current traffic and road conditions, weather conditions, transit information, parking information, special event and incident information.


• St. Johns County/City of St. Augustine Traveler Information System - TIC Interactive Traveler Information
• 1: The center shall disseminate customized traffic and highway condition information to travelers, including incident information, detours and road closures, recommended routes, and current speeds on specific routes upon request.
• 10: The center shall provide all traveler information based on the traveler's current location or a specific location identified by the traveler, and filter or customize the provided information accordingly.
• 11: The center shall accept traveler profiles for determining the type of personalized data to send to the traveler.
• 17: The center shall provide the capability for a system operator to control the type and update frequency of traveler information.

Standards:

• (None-Data) - Secure Internet (ITS)
• (None-Data) - Secure Wireless Internet (ITS)
• US: ATIS - Secure Wireless Internet (ITS)
• US: ATIS - Wide Area Broadcast
• US: NTCIP Message Sign - SNMPv3/TLS
• US: NTCIP Signal Priority - SNMPv3/TLS
• US: NTCIP Signal System Masters - SNMPv3/TLS
• US: NTCIP Traffic Signal - SNMPv3/TLS
• US: TMDD - NTCIP Messaging

Project Operational Concepts:

Roles and Responsibilities

• St. Johns County Traffic and Transportation Department
• Monitor bridges in St.Johns County and warn travelers of bridge-related incidents.
• Provide traffic information to travelers using Putnam County DMS equipment.
• Provide traffic information to travelers using the county public information system, private companies, the northeast Florida traveler information system, and the media.