The q-analysis of road intersections

✍ Scribed by J.H. Johnson

• Book ID: 104139652
• Publisher: Elsevier Science
• Year: 1976
• Weight: 825 KB
• Volume: 8
• Category: Article
• ISSN: 0020-7373
• DOI: 10.1016/s0020-7373(76)80019-3

✦ Synopsis

There are two finite simplicial complexes associated with a road junction and there is a correspondence between the structure of these complexes and an intuitive evaluation of the junction's ability to carry flows. This intuitive feeling is made well-defined by the introduction of an order relation between junctions according to the flows they can accommodate. In comparing junction designs we find that a relatively low dimension structure q-connected only for relatively small q is associated with a superior ability to accommodate flows, and we illustrate the application of our findings to a complicated interchange and an experimental roundabout. The structural analysis was performed on the Essex PDP-10 computer using less than one minute computing time and 2K store for a complicated intersection showing there are no computing problems to be overcome.