This paper was presented at Session 28 - Transport Planning Techniques 2. This paper describes the methods and results of an investigation into the applicability and usefulness of a variational approach to the determination of an optimal route location (Nicholson 1973). The variational approach involves firstly the use of an extremal field procedure to search a broad feasible region and produce bands of interest, and then a variational calculus procedure to explore a band of interest and generate location bands which can be investigated using a program such as ICES roads in order to produce a final alignment. The application of this variational approach to a real problem is described and the results are compared with those obtained independently via a traditional approach. The paper describes the use of the method for determining an optimal route with constraints on capital availability, for deriving a priority order for staged realignment of a route, and for assisting the determination of design standards that are consistent with the economic circumstances. (a) (TRRL)

Media Info

  • Features: Figures; References;
  • Pagination: p. 123-130
  • Serial:
    • Volume: 9
    • Issue Number: 6

Subject/Index Terms

Filing Info

  • Accession Number: 00310024
  • Record Type: Publication
  • Source Agency: ARRB Group Ltd.
  • Files: ITRD, TRIS, ATRI
  • Created Date: Jul 22 1980 12:00AM