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VDOT NWRO Work Zone System

Status:

Existing

Definition:

Portable VMS, detection, and CCTV used for work zone safety and management.

Stakeholder:

VDOT NWRO Region

Architecture Flow Diagrams
which include VDOT NWRO Work Zone System:

• VDOT NWRO Work Zone System VDOT NWRO TOC/ATMS

Architecture Flows
to/from the VDOT NWRO Work Zone System:

VDOT NWRO Work Zone System VDOT NWRO TOC/ATMS

• roadway dynamic signage status


• roadway treatment system status


• traffic detector data


• traffic images

VDOT NWRO TOC/ATMSVDOT NWRO Work Zone System

• roadway dynamic signage data


• roadway treatment system control


• traffic detector control


• video surveillance control

National ITS Architecture Subsystems
mapped to the VDOT NWRO Work Zone System:

• Connected Vehicle Roadside Equipment Subsystem
• ITS Roadway Equipment Subsystem

National ITS Architecture Services
associated with VDOT NWRO Work Zone System:

• MC06 - Work Zone Management - NWR -- (Graphic)

National ITS Architecture Functional Requirements
associated with VDOT NWRO Work Zone System:

Roadway Traffic Information Dissemination

1. The field element shall provide operational status for the driver information systems equipment (DMS, HAR, etc.) to the center.
2. 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).

Roadway Work Zone Traffic Control

1. The field element shall collect, process, and send work zone images to the center for further analysis and distribution, under center control.
2. The field element shall provide operational status for the surveillance (e.g. CCTV), driver information systems, and gates/barriers in work zones to the maintenance center.
3. Under traffic and maintenance center control, the field element shall include driver information systems (such as dynamic messages signs and highway advisory radios) that advise drivers of activity around the work zone through which they are currently passing.
4. Under the control of field personnel within maintenance vehicles, the field element shall include driver information systems (such as dynamic messages signs and highway advisory radios) that advise drivers of activity around a work zone through which they are currently passing.