Author(s)

Yuhan Zhang, Shoaib Mahmud, Meenakshi Sumeet Arya, Pratik Sapkota, Anuj Sharma, Christopher M. Day

Department of Civil, Construction, and Environmental Energy, Iowa State University, Ames, USA.

This paper examines driver compliance with No Right Turn on Red (NRTOR) restrictions at eight signalized intersections in Minnesota, where six locations were equipped with pedestrian- or time-of-day-activated dynamic blank-out signs and two locations displayed conventional static signs. High-resolution video observations were used to quantify right-turning driver responses. Compliance was measured using two perspectives: proportion of compliant cycles and proportion of compliant vehicles. The results showed that static signs were generally associated with higher compliance, yielding 80.0% per-cycle and 92.4% per-vehicle compliance, compared with 60.8% and 87.1% for dynamic signs. Logistic regression models were further applied to assess statistical significance and to evaluate how NRTOR effectiveness compares with other geometric and operational factors influencing driver behavior.

Signalized Intersections, Right-Turn Movements, Compliance Behavior, Dynamic Blank-Out Signs, Traffic Safety

Zhang, Y. , Mahmud, S. , Arya, M. , Sapkota, P. , Sharma, A. and Day, C. (2025) Observations of Driver Compliance with Dynamic No Right Turn on Red Signs at Signalized Intersections. Journal of Transportation Technologies, 15, 542-559. doi: 10.4236/jtts.2025.154025.