Modeling of Passenger Car Equivalency under Heterogeneous Traffic Conditions

The purpose of this paper is to present an alternative measure of density, termed as area occupancy, as a measure of impedance to estimate the passenger car equivalents (PCE) values. A simulation technique is used to estimate PCE values under different traffic regimes. These values will be helpful in analyzing traffic flow patterns and in capacity analysis. In studying heterogeneous traffic, PCE play a significant role in converting the mixed traffic flow into equivalent hypothetical homogeneous traffic that consists of passenger cars only. As can be seen in the literature there are different measures of impedance (speed, density, vehicle-hours etc.) based on which PCE values are calculated for different types of vehicles. Since vehicle-hours and speed are functions of vehicle density, PCE values invariably depend on density. Measuring these values is difficult under heterogeneous traffic conditions. Due to these reasons using the density value as a measure of impedance in calculating PCE values under mixed traffic conditions may lead to erroneous results.

• Record URL:
  • http://arrbknowledge.com
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1876592494
• Corporate Authors:

  ARRB

  Melbourne, Victoria  Australia 
• Authors:
  • Mallikarjuna, Ch
  • Rao, K Ramachandra
• Conference:
  • Research into Practice: 22nd ARRB Conference
  • Location: Canberra , Australia
  • Date: 2006-10-29 to 2006-11-2
• Publication Date: 2006

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; References; Tables;
• Pagination: 13p
• Monograph Title: Research into Practice: 22nd ARRB Conference Proceedings

Subject/Index Terms

• TRT Terms: Highway capacity; Highway operations; Passenger car equivalence; Traffic; Traffic congestion; Traffic data; Traffic flow; Traffic models; Traffic speed; Traffic volume; Vehicle mix
• Uncontrolled Terms: Heterogeneous traffic
• ITRD Terms: 155: Administration; 8525: Conference; 9014: Dimension; 6473: Mathematical model; 6136: Measurement; 651: Passenger car unit; 755: Traffic; 641: Traffic composition; 673: Traffic concentration; 1255: Vehicle
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning; I73: Traffic Control;

Filing Info

• Accession Number: 01041590
• Record Type: Publication
• ISBN: 1876592494
• Files: TRIS, ATRI
• Created Date: Jan 30 2007 1:31PM