I-64 HRBT Over Height Vehicle Detection System (OHVDS)

Project Description: Hampton Roads District Special Structures Office (HRSS) is enhancing over height vehicle detection in the 1–64 WB Tunnel approach. This system is being developed and implemented to enhancing efficiency in detecting and processing over height vehicles from entering the tunnel. The enhanced system comprises of 3D LIDAR for over height detection, Automated License Plate Reader Cameras (ALPR's) for Vehicle Identification , and Flashing Beacons and Dynamic Message Signs for messaging the drivers of over height vehicles. A standalone workstation at the Tunnel Control Room is used for OHVDs configuration, collation, and managing the system data.

Project Status: Planned

Project Stakeholders:

• VDOT HRBT TOC Operators

Project Service Packages:

• TM24: Tunnel Management - VDOT HRBT Over Height
• TM01: Infrastructure-Based Traffic Surveillance (I-64 HRBT OHVDS)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
passive vehicle monitoring control	VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation	VDOT HRBT Over Height Vehicle Detection Field Equipment	Planned
passive vehicle monitoring data	VDOT HRBT Over Height Vehicle Detection Field Equipment	VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation	Planned
roadway dynamic signage data	VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation	VDOT HRBT Over Height Vehicle Detection Field Equipment	Planned
roadway dynamic signage status	VDOT HRBT Over Height Vehicle Detection Field Equipment	VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation	Planned
safeguard system control	VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation	VDOT HRBT Over Height Vehicle Detection Field Equipment	Planned
safeguard system status	VDOT HRBT Over Height Vehicle Detection Field Equipment	VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation	Planned
traffic detector control	VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation	VDOT HRBT Over Height Vehicle Detection Field Equipment	Planned
traffic detector data	VDOT HRBT Over Height Vehicle Detection Field Equipment	VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation	Planned
traffic images	VDOT HRBT Over Height Vehicle Detection Field Equipment	VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation	Planned
video surveillance control	VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation	VDOT HRBT Over Height Vehicle Detection Field Equipment	Planned

Project Functional Requirements (Element - Functional Object):

• VDOT HRBT Over Height Vehicle Detection Field Equipment - Roadway Basic Surveillance
• 1: The field element shall collect, process, digitize, and send traffic sensor data (speed, volume, and occupancy) to the center for further analysis and storage, under center control.
• 2: The field element shall collect, process, and send traffic images to the center for further analysis and distribution.


• VDOT HRBT Over Height Vehicle Detection Field Equipment - Roadway Infrastructure Monitoring
• 2: The field element shall include infrastructure condition monitoring sensors that monitor the condition of pavement, bridges, tunnels, associated hardware, and other transportation-related infrastructure (e.g., culverts), under maintenance vehicle control.


• VDOT HRBT Over Height Vehicle Detection Field Equipment - Roadway Passive Monitoring
• 1: The field element shall collect, process, and send data to the center to uniquely identify passing vehicles in order to support travel time measurement


• VDOT HRBT Over Height Vehicle Detection Field Equipment - Roadway Safeguard System Control
• 1: The field element shall activate safeguard systems, equipment used to mitigate the impact of incidents on transportation infrastructure (e.g., blast shields, tunnel exhaust systems, etc.) under center control.
• 2: The field element shall return safeguard system operational status to the controlling center.
• 3: The field element shall return safeguard system fault data to the maintenance center for repair.


• VDOT HRBT Over Height Vehicle Detection 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).


• VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation - Center Field Equipment Management
• 1: The center shall collect the status and fault data from field equipment, such as traffic, infrastructure, and environmental sensors, highway advisory radio and dynamic message signs, automated roadway treatment systems, barrier and safeguard systems, cameras, traffic signals and override equipment, ramp meters, short range communications equipment, security sensors and surveillance equipment, etc..


• VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation - TMC Basic Surveillance
• 2: The center shall monitor, analyze, and distribute traffic images from CCTV systems under remote control of the center.


• VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation - TMC Safeguard System Management
• 1: The center shall remotely control safeguard systems, equipment used to mitigate the impact of incidents on transportation infrastructure (e.g., blast shields, tunnel exhaust systems, etc.)
• 2: The center shall accept requests for safeguard system activation from other centers and from center personnel to support emergency response.
• 3: The center shall collect safeguard system operational status.
• 4: The center shall collect safeguard system fault data and send to the maintenance center for repair.


• VDOT HRBT Over Height Vehicle Detection Tunnel Control Room Workstation - TMC Traffic Information Dissemination
• 1: The center shall remotely control dynamic messages signs for dissemination of traffic and other information to drivers.

Standards:

• (None-Data) - Guaranteed Secure Internet (ITS)
• (None-Data) - Secure Internet (ITS)
• US: NTCIP Message Sign - SNMPv3/TLS
• US: NTCIP Transportation Sensors - SNMPv3/TLS
• US: NTCIP Video Switches - SNMPv3/TLS

Project Operational Concepts:

Roles and Responsibilities

• VDOT HRBT TOC Operators
• Detect and notify Over Height Vehicles of violation through DMS signs.
• Operate and maintain the Over Height Vehicle Detection System.
• Record license plate information of Over Height Vehicles.