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Speed safety cameras (SSCs) are an effective tool for addressing speeding and improving road safety. They are being used more frequently as a supplement to traditional law enforcement methods due to concerns about social justice and limited resources. Studies have shown that SSCs can significantly reduce crashes and injuries. The U.S. Department of Transportation supports the use of SSCs as a safer and fairer approach to changing speeding behaviors. The 2023 Speed Safety Camera Program Planning and Operations Guide, published by the Federal Highway Administration and the National Highway Traffic Safety Administration, provides updated research and practices on SSCs, including case studies and information on planning, implementation, operation, and evaluation. The guide emphasizes the importance of community involvement, transparency, and addressing equity concerns in SSC programs. The ultimate goal of SSC programs is to reduce speeding and improve road safety. [Extracted from the article]

The article reports that a United States. Federal Highway Administration (FHWA) study links dynamic messages to a reduction in roadway departures on two-lane rural curves, which have high crash histories. Most of the departure crashes occur on rural two-lane roadways with a disproportionate number taking place on horizontal curves. The average crash rate at horizontal curves is three times that of other types of highway segments.