IDEAS home Printed from https://ideas.repec.org/a/eee/transb/v23y1989i5p315-329.html
   My bibliography  Save this article

Simultaneous optimization of horizontal and vertical alignments for highways

Author

Listed:
  • Chew, E. P.
  • Goh, C. J.
  • Fwa, T. F.

Abstract

This paper presents the formulation of a three-dimensional highway alignment optimization model. The coordinates of the highway is parametrized by using a three-dimensional cubic spline polynomial interpolation. The solution is obtained by locating the optimal horizontal and vertical alignments simultaneously while subject to a wide range of possible constraints. These constraints may be bounds on the slope or curvature, as well as avoidance of inaccessible region. It is an extension from a previous research work where optimal vertical highway alignment was determined for a preselected horizontal alignment. Two numerical examples based upon the actual ground conditions in Singapore are presented to illustrate the applicability of the proposed model. Some computational details such as scaling and selection of initial variables which affect the rate of convergence are also briefly discussed.

Suggested Citation

  • Chew, E. P. & Goh, C. J. & Fwa, T. F., 1989. "Simultaneous optimization of horizontal and vertical alignments for highways," Transportation Research Part B: Methodological, Elsevier, vol. 23(5), pages 315-329, October.
    • Handle: RePEc:eee:transb:v:23:y:1989:i:5:p:315-329
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/0191-2615(89)90008-8
    Download Restriction: Full text for ScienceDirect subscribers only
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Lee, Yusin & Cheng, Juey-Fu, 2001. "A model for calculating optimal vertical alignments of interchanges," Transportation Research Part B: Methodological, Elsevier, vol. 35(5), pages 423-445, June.
    2. Lovell, David J. & Jong, Jyh-Cherng & Chang, Peter C., 2001. "Clear zone requirements based on horizontal sight distance considerations," Transportation Research Part A: Policy and Practice, Elsevier, vol. 35(5), pages 391-411, June.
    3. Kim, Eungcheol & Jha, Manoj K. & Son, Bongsoo, 2005. "Improving the computational efficiency of highway alignment optimization models through a stepwise genetic algorithms approach," Transportation Research Part B: Methodological, Elsevier, vol. 39(4), pages 339-360, May.
    4. Jong, Jyh-Cherng & Schonfeld, Paul, 2003. "An evolutionary model for simultaneously optimizing three-dimensional highway alignments," Transportation Research Part B: Methodological, Elsevier, vol. 37(2), pages 107-128, February.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:transb:v:23:y:1989:i:5:p:315-329. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/wps/find/journaldescription.cws_home/548/description#description .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.