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Automated Safety Warning System Controller, Phase II

Started: April, 2010 Ended: March, 2013 Project ID #4W3050 Status: Completed


This project is a continuation of the prior phase of the Caltrans Automated Warning System Controller project. The goal is to conduct further research and development of an automated warning system controller that can be easily configured to acquire sensor data from Roadside Weather Information Systems (RWIS), detection loops, Remote Traffic Microwave Sensors (RTMS) and video detection systems, and to prepare the system for deployment in Caltrans.


The demand for the deployment of automated warning systems will continue to increase as a lower cost alternative to major highway realignment for safety improvements. Caltrans recognizes that by acting now to develop a standard approach that considers maintenance, flexible implementation, reliability and communications issues, a multitude of one-of-a-kind deployments can be avoided. The benefits of standardization with regard to personnel training, equipment purchase and repair are well known within Caltrans. Development of this type of controller is totally consistent with the technical foundation defined in the Transportation Management System (TMS) Standardization Plan. The controller could be deployed in a wide variety of situations to mitigate safety problems. Applications such as ice detection and warning, wind warning, queue detection and warning would all be readily deployable. Portable systems could also be deployed in work zones for queue detection and warning. Currently, the requirement of custom controller software development is a significant barrier to automated system deployments. The availability of an "off the shelf" controller specifically designed to interoperate with standard TMS elements would tend to promote its use both within California and throughout the nation.


Sponsors & Partners

  • California Department of Transportation (CALTRANS) Sponsor

Part of: Systems Engineering Development & Integration

Project Tagged In: Rural Transportation, intelligent transportation systems, Control System

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