Canadian Capacity Guide For Signalized Intersections

The CCG 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.

The survey procedures included in the CCG provide direction for users in any country to collect local data which can be used to obtain geographically specific results.

These municipalities also suffer from constrained urban space and limited financial resources, but they share the desire to improve the quality of their environment.

The focus of the CCG is on the movement of traffic flow units, such as cars, trucks, transit vehicles, cyclists, and pedestrians at signalized intersections.

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.

Other performance measures relate the Guide to environmental, economic and safety analyses, and serve as vital information for transportation demand modelling.

Planning techniques, often called functional design, are useful for longer range problems, assisting in the determination of the type of the facility and its basic dimensions.

Although advanced simulation and other computerized techniques may prove to be superior to formula based methods in the future, the understanding of the fundamentals contained in the Guide remains essential.

Nevertheless, some individual procedures, especially with respect to saturation flow and evaluation criteria, may differ because they were developed, tested, or adjusted for specific Canadian conditions.

The results of the procedures included in the Guide, however, can be used as information for the evaluation of the impact of intersection control, or geometric alternatives on system aspects, such as population mobility, accessibility of various destinations or land use strategies.