A “smart work zone system” is the application of computers, communications, and sensor technology to freeway transportation and would possess the following general characteristics:
- Real-time The system analyzes traffic flow data in real-time, providing frequently updated information to motorists.
- Portable The system is portable, allowing its installation (with minor modifications as necessary) at different locations.
- Automated The system operates in an automated manner with as minimal supervision as possible by human operators.
- Reliable The system provides accurate and reliable information, keeping in mind the serious consequences of misinforming motorists in work zone situations.
By using traffic sensors to detect changes in driving conditions, a smart work zone system will report those changes to the motorist using message boards, in-vehicle warning systems, and/or flashing beacons. The motorist now has more information about delays and how to handle them.
These systems, if properly designed and implemented, will:
- Better inform motorists and reduce their frustrations;
- Encourage motorists to take alternate routes;
- Reduce congestion and allow more freely flowing traffic;
- Clear incidents more quickly, thereby reducing secondary incidents;
- Make work zones safer for highway workers and motorists
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