TAC’s Geometric Design Guide for Canadian Roads (GDG) is a
fundamental reference document for roadway design practitioners in Canada. It
contributes to the development of regional, provincial and national road and
highway systems by helping planners and designers meet the needs of road users
with safety and consistency while addressing the context of local conditions
and environments.
The GDG addresses freeways, arterials, collectors and local
roads in both urban and rural contexts, as well as special roads and facilities
for walking and cycling.
The 11 chapters in the Geometric Design Guide for Canadian
Roads are: 1 – Design Philosophy; 2 – Design Controls, Classification and
Consistency; 3 – Alignment and Lane Configuration; 4 – Cross Section Elements;
5 – Bicycle Integrated Design; 6 – Pedestrian Integrated Design; 7 – Roadside
Design; 8 – Access; 9 – Intersections; 10 – Interchanges; and 11 – Special
Roads (added in 2020).
The GDG is complemented by the Canadian Roundabout Design
Guide →GDG overview webinar recording
Buying the GDG- Each of the 11 chapters in the GDG is
available individually in either print or e-book format at the cost of $59-$69
for TAC members, $75-$89 regular price, and a special rate of $39 (e-book only)
for full-time students*. - A package of all 11 chapters is sold in either print
or e-book format for $575 for TAC members, $749 regular price, and a special
rate of $225 (e-book only) for full-time students*.
*Full-time students must provide proof of eligibility. Email
the TAC office your academic program name, course title, name of professor or
dean, and copy of your student ID, for instructions. Call 613-736-1350 with
questions.
Revisions - Updates to technical content in chapters 2, 5,
7, 9 and 10 were included as of August 19, 2019. Summary of Revisions (pdf) →-
Chapter 11 was added in April 2020.