Citation

Teply S. Transp. Res. Rec. 1985; 1005: 20-28.

Copyright

(Copyright © 1985, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

A unified approach to the treatment of capacity-related issues in urban networks has been emerging in Canada during the last 10 years. In 1982 the Executive of District 7 (Canada) of the Institute of Transportation Engineers appointed a committee to develop a series of documents that, eventually, will form a Canadian Urban Transportation Capacity Guide. The committee decided to proceed with the section on signalized intersections as the first task. The main reason for this decision was that the capacity of traffic signals is usually the key factor in all urban capacity considerations, and, as a result, a chapter on signalized intersections was most urgently needed. Moreover, a number of analytical and design procedures related to traffic signals have been tested in the Canadian context in the past decade. Although capacity research and development have been only marginally coordinated in Canada, a common philosophy has been forming, as may be seen in documents prepared in Ontario and Alberta. The first edition of the Canadian Capacity Guide for Signalized Intersections was preceded by three draft versions that were discussed both within and outside the committee. One of the guide's principal objectives is to test the approach and procedures and to elicit comments from users and researchers on a country-wide basis. The objective of this paper is to inform the North American transportation research community about the document and to highlight its philosophy and associated techniques. In essence, capacity analysis is based on a lane-by-lane saturation flow procedure that allows for calibration to local community conditions.

Record URL:
http://onlinepubs.trb.org/Onlinepubs/trr/1985/1005/1005-003.pdf

Language: en

Keywords

ROADS AND STREETS; URBAN PLANNING - Transportation; TRAFFIC SIGNS, SIGNALS AND MARKINGS - Research