Safety and Consulting Services


The TNS team has unparalleled expertise and experience with all aspects of transportation engineering and safety. Our many safety and consulting services include:

Current / Recent Safety and Consulting Projects:

 MacLaren and Lyon Road Safety Audits | City of Ottawa | 2021


TNS was retained through Robinson Consultants to conduct road safety audits (RSAs) of the reconstruction projects of MacLaren Street and Lyon Street in Ottawa. As part of the contract between Robinson Consultants and the City, multi-modal RSAs were required at the functional and preliminary design stages.

Trillium Passenger Rail System | City of Ottawa | 2019 - Ongoing


SNC-Lavalin was retained by the City of Ottawa for the delivery of engineering services for the planning, design, construction and commissioning of the Ottawa Trillium Passenger Rail System and the associated road, transit, pedestrian, and bicycle facilities. TNS was retained as a sub-consultant to complete RSAs of 3.2 km of roadways, seven intersections and two park and ride facilities at the 60% design, 99% design, and post-construction stages.

Highway 400/Jane Street Rehabilitation | Ministry of Transportation of Ontario | 2018-2020


TNS was retained by Stantec as a sub-consultant to complete an active transportation review and a temporary conditions RSA for the rehabilitation of eight bridge structures at the Highway 401/Jane Street interchange in the City of Toronto. The temporary conditions RSA included a comprehensive review of the complex 90% staging plans over multiple years and stages from a road user safety perspective. This review encompassed positive guidance, road user workload, visibility, speed control, conflict recognition, and decision-making activities on the approach and at key conflict areas through the temporary conditions on arterial and freeway facilities.


Highway 405 Queue and Stopped Vehicle Advisory System | Ministry of Transportation of Ontario | 2020-ongoing


TNS was retained by Black and MacDonald to complete RSAs of the Queue and Stopped Vehicle Advisory System at the 99% design, and post-construction stages.