Abstract Manager

The Dundas BRT is a 6 km bus rapid transit project in Mississauga. Dundas street in this area will be widened to accommodate bus lanes. The area is congested with many utilities which poses a significant utility coordination risk to the project. Multi-Channel Ground Penetrating Radar (MCGPR) survey was conducted in the project corridor on both the road and boulevard to accurately determine utility depths at nearly 300 specific locations. By combining single channel and array GPR technologies, we collected abundant data for analysis. This information proved extremely valuable from a UC perspective, aiding in the determination of utility depths, identification of unidentified infrastructure, location of QLD utilities, as well as the refinement of test hole locations. Utilizing MCGPR data halved the initially planned 300 test holes for SUE QLA information, streamlining the process. While this approach has some constraints, such as difficulty identifying deeper utilities and variable outcomes in different soil types, collaboration between the UC and SUE teams ensured excellent information was used for utility conflict analysis, effectively minimizing risk on the project.