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Traffic Congestion During Peak Hours Interchanged Area Freeway Arterial Traffic Safety and Operation Lab University of Maryland State Highway Administration

Congestion Bottleneck Traffic Safety and Operation Lab University of Maryland State Highway Administration

System Framework Stage 1 Pre-timed Signal Plan Design Stage 2 Real-time Signal Control Traffic Safety and Operation Lab University of Maryland State Highway Administration

Pre-timed Signal Control Traffic Data Traffic Safety and Operation Lab University of Maryland State Highway Administration

Real-Time Signal Control Stage 1 Stage 2 Data Collection Data Analysis Traffic Safety and Operation Lab University of Maryland State Highway Administration Stage 3 Signal Priority Control

Data Collection Queue spillback Data Analysis Priority Control Traffic Safety and Operation Lab University of Maryland State Highway Administration

Field Site Demonstration • Guangming 6 th Rd, Chupei, Taiwan Queue spillback Traffic Safety and Operation Lab University of Maryland State Highway Administration

Case Study With Dynamic Control No Control Traffic Safety and Operation Lab University of Maryland State Highway Administration

Case Study Traffic Safety and Operation Lab University of Maryland State Highway Administration

Case Study • Network Performance J No-Control Dynamic Control Improvement Average Delay (sec) 101. 25 83. 14 -17. 89% Average Number of Stops 2. 99 1. 97 -34. 11% Average Speed (km/h) 32. 24 37. 84 17. 34% Traffic Safety and Operation Lab University of Maryland State Highway Administration

attap. umd. edu Traffic Safety and Operation Lab University of Maryland THANKS & Maryland State Highway Administration