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Arizona Department of Transportation Dual Use Technology (DUST) Warning System
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2023-08-01
[PDF-295.82 KB]
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Edition:Factsheet
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Abstract:In Arizona, one of the biggest challenges for road weather management along Interstate 10 (I–10) is dust storms. In the spring of each year, these often unpredictable events wreak havoc on travel along the interstate. They are a significant safety concern in the region, especially for out-of-state drivers who are unfamiliar with the phenomenon. Dust storms can reduce visibility to extremely low levels, causing multiple-car accidents. In response, the Arizona Department of Transportation (ADOT) developed the Dual Use Safety Technology (DUST) Warning System. The system is intended to help reduce loss of life, injury, and property damage. It was initially placed along rural I–10 in Cochise County between the communities of Bowie and San Simon. Later on, ADOT added another DUST Warning System along a critical 10-mile segment of I–10 between Tucson and Phoenix. The system has been designed to focus on dual challenges: 1. Visibility hazards caused by blowing dust 2. Unexpected snow and ice in the Texas Canyon area of I–10 The DUST Warning System provides detection and early warning for both icy conditions in the Texas Canyon as well as windborne dust along I–10. The system uses several environmental sensor stations (ESS), precipitation and visibility sensors, and a comprehensive sensor array. Each ESS site is equipped with a snapshot closed circuit television (CCTV) camera to visually confirm any potential low-visibility conditions.
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