THE (GLOBAL) STRATEGIC MODEL- FURTHER AMENDED RELATIONSHIPS

This note describes some further enhancements made to the global strategic model described in tn 149 (see TRIS 451029) and tn 150 (see TRIS 451030). The changes involved: 1) including a more realistic estimate of accident costs; 2) revisions to the speed-flow calculations; 3) minor adjustments to the value of time figures; 4) adopting dtp figures for BR fare and passenger miles; 5) corrections to the method of calculating boarding times and bus speeds; 6) adjustments to the base wait time to allow for parallelism; 7) revising the lt rail-car cross-elasticity; 8) updating the data in line with the 1984/5 budget; 9) distinguishing long and short run costs. These changes and those from tn 150 have now also been incorporated in LT's version of METS (the dtp's model for evaluating transport subsidy). When these changes are incorporated, the marginal net social benefit/pounds sterling is found to be 0.29 at 1984 prices (ie for each extra pounds sterling subsidy, the benefit to society is pounds sterling 1.29). (Author/TRRL)

• Corporate Authors:

  London Transport Executive

  Group Planning Department, 55 Broadway
  London SW1H 0BD,   England 
• Authors:
  • Frerk, M Y
• Publication Date: 1984-3

Media Info

• Features: References; Tables;
• Pagination: 13 p.
• Serial:
  • Issue Number: 158

Subject/Index Terms

• TRT Terms: Benefit cost analysis; Boarding; Budgeting; Bus transportation; Buses; Costs; Crashes; Evaluation and assessment; Financing; Mathematical models; Modernization; Passenger miles; Public transit; Railroad transportation; Speed; Strategic planning; Subsidies; Tariffs; Time; Traffic flow; Traffic speed; Transfer points; Transfers; Transportation; Transportation modes; Travel budgets; Travel costs; Travel time; Vehicle occupants; Waiting time
• Uncontrolled Terms: Accident costs; Mileage; Models; Modifications
• Geographic Terms: United Kingdom
• ITRD Terms: 1643: Accident; 1196: Boarding time; 257: Budget; 1272: Bus; 1195: Change (transp); 224: Cost; 226: Cost benefit analysis; 9020: Evaluation (assessment); 244: Financing; 6488: Length; 6473: Mathematical model; 9048: Modification; 744: Public transport; 1173: Rail bound transport; 5408: Speed; 241: Tariff; 5414: Time; 671: Traffic flow; 1155: Transport; 8119: United Kingdom; 1715: Vehicle occupant; 9100: Waiting time
• Subject Areas: Economics; Operations and Traffic Management; Planning and Forecasting; Safety and Human Factors; Society; Transportation (General); I10: Economics and Administration; I71: Traffic Theory;

Filing Info

• Accession Number: 00451031
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Aug 27 2004 9:05PM