Design and Evaluation of a Dynamic Dilemma Zone System for a High Speed Rural Intersection

Details

• Alternative Title:
  Design & Evaluation of a Dynamic Dilemma Zone System for a High Speed Rural Intersection
• Creators:
  Chang, Gang-Len ; Franz, Mark ; Lu, Yang
• Corporate Creators:
  University of Maryland (College Park, Md.). Department of Civil and Environmental Engineering
• Corporate Contributors:
  Maryland. State Highway Administration. Office of Policy & Research
• Subject/TRT Terms:
  • Dilemma zone
  • Intersection elements
  • Highway traffic control systems
  • Signalization
  • Traffic signal control systems
  • Traffic signal controllers
  • Traffic signal hardware
  • Dilemma zone, Signal Control Logic
• Publication/ Report Number:
  MD-12- SP708B4J
• Resource Type:
  Tech Report
• Geographical Coverage:
  Maryland
• Edition:
  Final report.
• Corporate Publisher:
  Maryland. State Highway Administration
• Abstract:
  The goal of this research was to develop a system that utilizes the dynamic detection technology and ; to evaluate the performance of this system. The first step of this study was to select an intersection ; experiencing a high frequency of crashes that could be remedied by a dilemma-zone protection system. ; Next, a dynamic dilemma-zone protection system was designed using three microwave sensors to track ; vehicles approaching the intersection on the major approach. The data collected by these sensors were ; then used in real-time to control the signal logic, providing green extensions and all-red extensions when ; pre-defined parameters of detected vehicles are met. To evaluate the performance of the system design ; and the appropriateness of the associated parameters, a field test was conducted. The data analysis ; included the identification of false called all-red extensions (related to efficiency) and missed all-red ; extensions (related to safety) to assess the overall performance of the newly installed dynamic dilemma ; zone protection system.
  More +
• Format:
  PDF
• Funding:
  SP708B4J
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24923/dot_24923_DS1.pdf
• File Type:
  [PDF - 2.00 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:c9a3c37c2dfe98a6b40952bc31804f4639bb5c87e15893f07569d6ce9d0496ef