POLYNOMIAL ROAD ALIGNMENT

This paper describes the applications of a particular curve fitting technique to a series of points and restraints which define the route of a proposed road. The mathematical background of the least squares curve fitting method is briefly discussed and the subsequent operations, on the general polynomial equation thus formed, are described with the aid of flow charts and short sections of FORTRAN program. Emphasis is placed on the production of A conventional output, for design and plotting purposes, compatible with that of current highway design suites. Site setting out information, notably a difficult problem with the non-traditional forms of route alignment, is output in A form suitable for setting out the whole, or any part of the route from all standard chainage intervals using the long chord or unit sub-chord and theodolite method, incorporating the distances and bearings of permanent survey ground markers.(a) /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03066452
• Corporate Authors:

  Whitehall Technical Press Limited

  Wrotham Place
  Wrotham, Sevenoaks, Kent ME14 1PE,   England 
• Authors:
  • James, D R
• Publication Date: 1976-4

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 17-26
• Serial:
  • Highway Engineer
  • Volume: 23
  • Issue Number: 4
  • Publisher: Whitehall Press Limited
  • ISSN: 0306-6452

Subject/Index Terms

• TRT Terms: Alignment; Computer programs; Curve fitting; Evaluation and assessment; Highway design; Highways; Least squares method; Mathematical models; Polynomials
• Identifier Terms: FORTRAN (Computer program language)
• Uncontrolled Terms: Selection
• ITRD Terms: 2894: Alignment; 9020: Evaluation (assessment); 8616: Fortran; 2755: Highway; 6473: Mathematical model; 9072: Selection; 8645: Software
• Subject Areas: Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00138850
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Oct 26 1976 12:00AM