THE TACHOGRAPH TRAFFIC CONGESTION MONITORING SYSTEM

A traffic congestion monitoring system was developed to allow traffic engineers to analyze the magnitude, duration and location of traffic congestion on highways and city streets. It is used to prioritize traffic improvement projects and to determine the effectiveness of TSM options. The system has reduced data analysis time by over an order of magnitude. The Division of Transportation Operations has projected an annual benefit of over $100000. A laptop microcomputer is used to gather data on speed, distance, and user defined events in a traveling vehicle. This data is then analyzed and displayed in various tabular and graphical formats using a separate office computer. Currently available output formats include: (1) tabular outputs of time, distance, speed, and delay between user defined or road events; (2) tabular output of the location and duration of vehicle delay below any user definable speed; (3) graphical output of vehicle speed vs distance traveled; (4) a graphical output of total trip delay vs trip start time for a specific roadway segment; and (5) graphical output displaying contours of constant speed on a time/distance plot for a specific roadway segment. The hardware and software requirements are outlined. For the covering abstract of the conference see IRRD 832076.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/093920441X
• Corporate Authors:

  Engineering Foundation

  United Engineering Center, 345 E 47th Street
  New York, NY  United States  10017
• Authors:
  • PAGE, D
  • Palen, J
• Publication Date: 1990

Language

• English

Media Info

• Pagination: p. 75-81
• Serial:
  • TRAFFIC CONTROL METHODS. PROCEEDINGS OF THE FIFTH NG FOUNDATION CONFERENCE, SANTA BARBARA, CALIFORNI
  • Publisher: Engineering Foundation

Subject/Index Terms

• TRT Terms: Digital computers; Speed; Tachographs; Traffic congestion; Traffic delays; Urban areas; Vehicles
• Uncontrolled Terms: Micro
• ITRD Terms: 632: Congestion (traffic); 9010: Delay; 8673: Digital computer; 9045: Micro; 5408: Speed; 1338: Tachograph; 313: Urban area; 1255: Vehicle
• Subject Areas: Vehicles and Equipment;

Filing Info

• Accession Number: 00607182
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• ISBN: 0-939204-41-X
• Files: ITRD, TRIS
• Created Date: Mar 31 1991 12:00AM