Automatic Ice Warning and De-Icing System - At some locations and in some situations, ice has a tendency to form quickly and without warning. Automatic ice warning and de-icing systems help reduce the danger associated with hazardous icy road conditions. These systems employ ice detection sensors and an automatic system of spraying devices that apply chemicals to the roadway as needed.

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Automatic Incident Detection and Management Systems - ITS traffic management systems have employed automatic incident detection in several cities. In Minneapolis-St. Paul area and other cities, these systems alert the traffic control centers of stalled vehicles, crashes, stopped traffic, etc. The detection is done with pavement sensors and video cameras. By monitoring these devices using artificial intelligence, stopped vehicles, slow moving traffic and crashes can often be quickly identified. With early notification, authorities can respond quickly to events allowing traffic to return to normal sooner.

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Automatic Vehicle Location (AVL) systems are used to provide the locations of vehicles such as trucks, buses, police, emergency response vehicles and highway maintenance vehicles. AVL gives managers the ability to optimize their operations by improving dispatching and monitoring. Benefits that result from the use of AVL also contribute to providing services more effectively and safely.

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Condition Acquisition and Reporting System (CARS) is a system that allows agencies at all levels to report planned and unplanned construction detours, road conditions, and weather traffic events. The data is made available on the Internet by using a Web browser, and helps to streamline information among various transportation agencies. The system reports data that is beneficial to motorists when making travel decisions. Commercial travelers and private motor vehicle operators benefit from the reports of road conditions when making travel decisions.

Highway Advisory Radio - A dedicated AM radio broadcast relays traveler information, as well as tourist information to the public. Broadcasting traffic congestion, construction detours and road conditions helps motorists make better travel decisions. These systems are used for specific spot applications. FORETELL, an On-Track project, may eventually feed information to highway advisory radio in the future. FORETELL provides current and forecasted weather conditions.

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Highway Helpers assist motorists on I-235 and I-80/35 in the Des Moines metropolitan area. These safety patrols reduce congestion by removing stalled vehicles from the roadway, assisting stranded motorists, and by aiding authorities with incident management. As a result, the roadways are safer and operate more efficiently to move traffic.

Signal Coordination/Traffic Flow Optimizing - These systems link and coordinate traffic control devices to increase efficiency in moving traffic. By using different instruction sets, the behavior of the system can be tailored to different traffic situations that occur during different periods of the day (ex. morning vs. evening traffic). The systems may also be used to help redirect traffic flows during emergency and detour situations.

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Variable Message Signs are used to convey different messages to travelers. These include information related to crashes, traffic delays, detours, alternative routes and special events. These devices are typically connected to a power source and phone line; some newer models are solar powered making it possible to place them virtually anywhere. The message and control systems are usually wireless.

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