This study was directed to the development of dust control and mitigation strategies for improving visibility and preventing vehicle accidents during dust storms along Interstate I-10, in Arizona. During the period 1985 to 1996, 46 dust-related accidents occurred on I-10, mostly between Phoenix and the New Mexico border. Most of these accidents occurred in the summer monsoon months of July and August. Based on wind direction analysis for each accident, fugitive dust originated from active and abandoned farmland, disturbed desert areas, an ostrich farm, unpaved parking lots and roads, and construction sites. Major accident sites were concentrated in the following areas: Vicksburg-Bouse Wash, Buckeye-Goodyear, Phoenix, Firebird Lake Complex, Gila River desert area, Casa Grande-Eloy, Marana, and Bowie-San Simon. Recommended dust control measures include: conservation farming practices, e.g., reduced tillage and limiting livestock; revegetation with shrubs and plants (including orchards) that act as windbreaks; soil stabilization; and watering under limited circumstances. Rigorous dust control plans should be required of any new source areas such as construction sites. Many of these measures have already been implemented along I-10. This accounts for a significantly reduced accident frequency over the past several years. This report also presents an historical overview of Arizona dust warning systems. In addition, state-of-the-art visibility sensors and sand movement sensors are discussed.