RELEVANCE OF STANDARDS

The current standards of geometric design are reviewed, and special consideration is given to mini-motorways (roads designed for cars only), and housing roads. Comments are made on design speed, design flow standards, geometric characteristics, gradients, cross sections, crawler lanes, interchanges, drainage, and road traffic noise standards. The most salient features of mini-motorways with particular reference to cost savings are: reduction in pavement thickness, reduction of structural depth of bridges, reduction of headroom of overbridges, narrower roads (thus less earthworks and landtake), and steeper gradients and tighter curves (therefore more flexibility in positioning of road). The planning and layout of housing roads are discussed. General conclusions are listed which relate to the general philosophy of design standards, design of road networks, the monitoring of design standards, and future research.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0266450X
• Supplemental Notes:
  • This article appeared in Road Design which is a publication containing the Proceedings of Seminar X held at the University of Warwick, England.
• Corporate Authors:

  Planning and Transport Res and Computation Co Ltd

  167 Oxford Street
  London W1R 1AH,   England 

  Planning and Transport Res and Computation Co Ltd

  167 Oxford Street
  London W1R 1AH,   England 
• Authors:
  • McAllister, I W
• Publication Date: 1975-7

Media Info

• Features: Tables;
• Pagination: p. 204-215
• Serial:
  • Publication of: Planning and Transport Res and Computation Co Ltd
  • Publisher: Planning and Transport Res and Computation Co Ltd
  • ISSN: 0266450-X

Subject/Index Terms

• TRT Terms: Design speed; Design standards; Geometric design; Highway design; Highway grades; Interchanges; Residential areas; Slopes; Surface drainage; Traffic flow; Traffic noise
• Old TRIS Terms: Highway drainage
• Subject Areas: Design; Highways;

Filing Info

• Accession Number: 00145024
• Record Type: Publication
• Report/Paper Numbers: P131
• Files: TRIS
• Created Date: Feb 1 1977 12:00AM