THEORETICAL ASPECTS OF THE GRAVITY MODEL OF TRANSPORT PLANNING

The gravity model (for trip distribution) of the type studied by transportation planning theorists is investigated as a theoretical construct. Deficiencies in the widely accepted maximum likelihood and maximum entropy derivations of the model are pointed out. An attempt is made to establish a sound calibration procedure for the model, whilst recognising that the gravity model need not necessarily be a good descriptor of trip distribution. /Author/TRRL/

• Corporate Authors:

  Melbourne University, Australia

  Department of Civil Engineering, Grattan Street
  Parkville, Victoria 3053,   Australia 
• Authors:
  • MacLean, A S
• Publication Date: 1974-2

Language

• English

Media Info

• Features: Figures; References;
• Pagination: 93 p.

Subject/Index Terms

• TRT Terms: Calibration; Entropy (Communications); Gravity models; Mathematical models; Theoretical studies; Transportation; Trip distribution
• Uncontrolled Terms: Transportation models
• ITRD Terms: 6171: Calibration; 9016: Distribution (gen); 690: Gravity model; 1054: Network (traffic); 143: Planning; 755: Traffic
• Subject Areas: Operations and Traffic Management; Transportation (General);

Filing Info

• Accession Number: 00132643
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Special Rpt. No. 9 Monograph
• Files: ITRD, TRIS, ATRI
• Created Date: Nov 9 1977 12:00AM