WEIGHTED DIGRAPH MODELS FOR ENERGY USE AND AIR POLLUTION IN TRANSPORTATION SYSTEMS

Prepared for the National Science Foundation as part of a study of Evaluation Measures to Conserve Energy, this report proposes use of the graph theory to analyze the complex interactions underlying the growing demand for energy. The graph theory application presents two problems: constructing a digraph model for a given system and analyzing the model. Rand reports R-927/1-NSF and R-927/2-NSF deal with construction of a digraph model and R-926-NSF is concerned with its analysis. This report considers the construction of weighted and double-weighted digraphs for the transportation system of a hypothetical metropolitan area similar to San Diego. It analyzes these digraphs with regard to fuel consumption and air pollution and it makes some assumptions underlying the techniques of digraph analysis. It also describes potential areas of applicability of the digraph methodology.

• Corporate Authors:

  RAND Corporation

  1776 Main Street, P.O. Box 2138
  Santa Monica, CA  United States  90407-2138
• Authors:
  • Roberts, F S
• Publication Date: 1974-12

Media Info

• Features: Figures; References;
• Pagination: 97 p.

Subject/Index Terms

• TRT Terms: Air pollution; Energy conservation; Energy consumption; Fuel consumption; Mathematical models
• Old TRIS Terms: Energy requirements
• Subject Areas: Energy; Environment; Railroads;

Filing Info

• Accession Number: 00099779
• Record Type: Publication
• Source Agency: High Speed Ground Transportation Journal
• Report/Paper Numbers: R-1578-NSF
• Files: TRIS
• Created Date: Oct 18 1975 12:00AM