Using Geometry to Evaluate Strategic Road Proposals in Orbital-Radial Cities

Mayhew, L. (2000). Using Geometry to Evaluate Strategic Road Proposals in Orbital-Radial Cities. Urban Studies, 37(13), pp. 2515-2532. doi: 10.1080/00420980020080671

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Abstract

This paper uses geometry to evaluate major road proposals in cities with road networks consisting of orbital and radial routes. The type of geometry used is a development of the Karlsruhe or Moscow metric after the cities where it was identified, although the results have wider applicability. The paper begins with a detailed consideration of the relationship between route speeds, junction access and service areas. New urban patterns are presented using optimal space filling techniques in which the aim is to maximise drive-time coverage with the minimum number of junctions. The method is then refined to allow for effects such as congestion and interstitial access. The results are then used in a case study to evaluate a well-known strategic road plan for London first proposed in the 1940s. There follows a general discussion about the policy and planning implications for London and further possible developments of the techniques presented.

Publication Type: Article
Additional Information: Mayhew, L. Using Geometry to Evaluate Strategic Road Proposals in Orbital-Radial Cities. Urban Studies, 37(13), pp. 2515-2532. Copyright © 2000, the author. Reprinted by permission of SAGE Publications.
Subjects: H Social Sciences > HE Transportation and Communications
Q Science > QA Mathematics
Departments: Cass Business School > Actuarial Science & Insurance
URI: http://openaccess.city.ac.uk/id/eprint/19964

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