A portable toolbox to monitor and evaluate signal operations.

Details

• Alternative Title:
  Project title: Portable traffic signal monitoring and evaluation toolbox to improve signal operations and safety
• Creators:
  Sunkari, Srinivasa R. ; Charara, Hassan A. ; Songchitruksa, Praprut
• Corporate Creators:
  Texas Transportation Institute
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Traffic signs
  • Traffic signals
  • Interchanges and intersections
  • Control systems
  • Safety
  • Traffic signs and signals--Texas--Control systems
  • Roads--Interchanges and intersections--Texas--Safety measures
• Publication/ Report Number:
  FHWA/TX-11/0-6177-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Edition:
  Technical report; Sept. 2008-Aug. 2010.
• Corporate Publisher:
  Texas Transportation Institute
• Abstract:
  Researchers from the Texas Transportation Institute developed a portable tool consisting of a fieldhardened ; computer interfacing with the traffic signal cabinet through special enhanced Bus Interface Units. ; The toolbox consisted of a monitoring tool and an analysis tool. The monitoring tool monitors and logs ; relevant events within the cabinet that provide input to analyze intersection operations. These inputs include ; signal status, detector status, preempt status, and coordination status. The user has to provide the basic signal ; timing data and coordination data as input data. The analysis tool then analyzes the log files for each day and ; produces easy to understand reports. The reports are available either in an hourly average format or ; individual cycle format for a selected time period. The measures of effectiveness (MOEs) presented include ; phase time, phase failures, queue clearance time, time to service; as well as counts on green, yellow, red, and ; split utilization during coordinated operations. Preempt data include the type of preempt, time of preempt, ; and the duration of preempt for each day. Detector failure data include type of detector failure and the time at ; which the detector failure occurred. ; The analysis tool analyzes the log files and generates user-specified MOEs in Microsoft Excel® ; format. This type of format provides the user with an opportunity to further analyze the data in a manner the ; user considers appropriate.
  More +
• Format:
  PDF
• Funding:
  Project 0-6177
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23394/dot_23394_DS1.pdf
• File Type:
  [PDF - 3.02 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:3ce964803dfd0adcd82bb5a58e924fe2bbe2c11d3e287fb600ccd124e921bd9c375858d41a4a13a5a16fb630149e10a37c45998d3c38fa8e8e02086f7f52e47f