Canadian Capacity Guide For Signalized Intersections: Difference between revisions

Revision as of 03:10, 8 December 2009

Revision as of 03:16, 8 December 2009

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[[File:CCG Front Page.jpg|thumb|alt = Cover image of the Canadian Capacity Guide |]]

The '''Canadian Capacity Guide for Signalized Intersections''' or '''CCG''' is a publication of the [[Canadian]] [[Institute of Transportation Engineers]] or '''CITE''' <ref>http://www.cite7.org/index.php</ref>. It describes an analysis [[methodology]] that allows [[Traffic engineering (transportation) | Traffic Engineers]] to conduct performance assessments of [[Traffic light | traffic signal]] controlled [[Intersection (road)| roadway intersections]].

The GuideCCG has been based on the current experience of practicing traffic engineers, transportation educators and students across Canada, and a considerable body of Canadian and international research. But while developed in Canada, its methodology is applicable to conditions anywhere. The survey procedures included in the Guide'''CCG''' provide direction for users in any country to collect local data which can be used to obtain geographically specific results.

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the evaluation of alternative solutions.

Techniques included in thisthe GuideCCG allow traffic[[Traffic engineersengineering (transportation) | Traffic Engineers]] to analyze various situations and intersection configurations. This Guide emphasizes the importance of a clear definition of the objectives of signal operation at a specific ___location. It also provides an understanding of the role that the intersection plays in the travel patterns, public transportation, and both motorized and non-motorized modes of transportation.

The focus of the Guide is on the movement of traffic flow units, such as cars, trucks, transit vehicles, cyclists, and pedestrians at signalized intersections. The main parameter is the time dimension that determines how efficiently the available roadway space is used by conflicting traffic streams. The allocation of time to the movement of vehicular and pedestrian traffic in lanes and crosswalks influences not only intersection capacity, but also a number of other measures that describe the quality of service provided for the users. To this end, and to provide input to investigations of possible impacts, the Guide provides both analytical and evaluation methods, and a set of up-to-date numerical parameters for Canadian conditions.