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Case Studies

Driving roadway innovation and thought leadership in traffic safety.

Case Study: Effectiveness of Dynamic Speed Feedback Signs Volume

This review analyzes the impact of Radar Speed Signs (RSS) in school zones, showing significant vehicle speed reductions and improved safety. Covering findings from 43 publications, it highlights RSS's effectiveness in decreasing speeds by an average of 3.21 mph, enhancing pedestrian safety, especially for children. The study offers crucial insights for traffic safety strategies, emphasizing RSS's vital role in creating safer school environments.

Crash Modification Factors for Uncontrolled Pedestrian Crossing Treatments

This comprehensive study explores the effectiveness of pedestrian safety enhancements, particularly Rectangular Rapid Flashing Beacons (RRFBs), in reducing pedestrian-vehicle incidents across urban and suburban settings. Through detailed cross-sectional and before-after analyses, the article highlights the development of Crash Modification Factors (CMFs) for RRFBs and other treatments.

Case Study: Estimating the Crash Reduction of Flashing LED Stop Signs

In this article, we delve into a meticulous study conducted by the Minnesota Department of Transportation on the safety implications of flashing LED stop signs. Through detailed technical analysis, the study reveals a statistically significant 41.5% reduction in crashes, offering valuable insights into the effectiveness of this innovative traffic control solution.