Report

R8 Effect of Improved Speed Compliance on Design Speed

Authors
Chris Jurewics
Kate Pratt
Tariro Makwasha
Andrew Beecroft
Recent Reports
Final Report
S73: Navigating Sustainability for Structures Year 2
October 28, 2025
Sustainability
Sustainability
February 3, 2015

The purpose of this project was to test if speed limit compliance has improved to the point where design speed could be lowered to match the speed limit, which may result in a reduction in road construction costs. The study reviewed the impacts of adopting a lower design speed on road design, safety, traffic operations and capacity, and on speed limit enforcement.

Download ReportDownload Report