Regional ITS Architecture

TM19: ATMS21-Roadway Closure Management - Caltrans

Need Area Description

This service package for State DOTs closes roadways to vehicular traffic when driving conditions are unsafe, maintenance must be performed, and other scenarios where access to the roadway must be prohibited. The service package includes automatic or remotely–controlled gates or barriers that control access to roadway segments including ramps and traffic lanes. Remotelu–controlled systems allow the gates to be controlled from a central location or from a vehicle at the gate/barrier location, improving system efficiency and reducing personnel exposure to unsafe conditions during severe weather and other situations where roads must be closed. Surveillance systems allow operating personnel to visually verify the safe activation of the closure system and driver information systems (e.g., DMS) provide closure information to motorists in the vicinity of the closure. The equipment managed by this service package includes the control and monitoring systems, the field devices (e.g., gates, warning lights, DMS, CCTV cameras) at the closure location(s), and the information systems that notify other systems of a closure. This service package covers general road closure applications; specific closure systems that are used at railroad grade crossings, drawbridges, reversible lanes, etc. are covered by other ATMS service packages.

Need Area Type: Management

Service Package

TM19: Caltrans - CHP Roadway Closure Management

Includes Needs

Number	Need
01	Traffic Operations needs to be able to close roadways to vehicular traffic and notify drivers when driving conditions are unsafe, maintenance must be performed or other scenarios where access to the roadway must be prohibited.
02	Traffic Operations need to be able to receive road condition data from multiple sources in order to generate roadways closure to vehicular traffic when driving conditions are unsafe, maintenance must be performed, or other scenarios where access to the roadway must be prohibited.
03	Traffic Operations need to be able to visually verify the safe activation of the closure system and driver information systems in order to provide closure information to motorists in the vicinity of the closure.
04	Traffic Operations need to be able to allow the gates to be remotely controlled from a central location or from a vehicle at the gate/barrier location, in order to improve system efficiency and reducing personnel exposure to unsafe conditions during severe weather and other situations where roads must be closed.