Updates to several chapters of the 2017 Edition of the Geometric Design Guide for Canadian Roads (GDG) were approved recently by the Revisions and Additions Subcommittee of the Transportation Association of Canada (TAC).
Customers who purchased print or e-book copies since the English GDG’s release in June 2017 have been contacted by email and given instructions on how to update their titles.
Updated GDG chapters will be sold starting August 19, 2019. Pages affected by revisions will include a yellow ‘sticky note’, with more details in the Summary of Revisions at the back of each affected chapter.
If you have questions or need clarification on the updates, contact firstname.lastname@example.org.