The element of increased incidents and the associated elements of reduced safety and increasing accident rate represent the area which may offer the greatest immediate and short term payoff for improvement and control of our existing physical transportation systems. Indeed, it is unlikely that any "new" urban roadway systems will be completed in the near future. Thus, urban travel demands will of necessity be satisfied by more mass transportation and by increasing the efficiency and safety of our present and future roadway systems. What is needed is most likely not more physical capacity, but control and management of the existing systems. Given this premise, that existing physical capacity is in most cases adequate, two principal outcomes may be expected: namely, increased safety and sustained flow within present critical regions. This paper is concerned with defining quantitative parameters which may be used to apply operational control. The parameters are analytically developed and empirically tested to determine both their distribution and ranges, within non- controlled operating conditions. This determination of parameter distribution should provide valuable operational information for strategies to control the generation of disturbances which may lead to the subsequent breakdown in traffic flow and increase the latent danger of collisions.

  • Corporate Authors:

    Planning Transport Associates, Incorporated

    P.O. Box 4824, Duke Station
    Durham, NC  United States  27706
  • Authors:
    • Tolle, J E
  • Publication Date: 1974-6

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00096107
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 10 1975 12:00AM