On the Eglinton Crosstown Light Rail Transit project we perform precise deformation monitoring, where we survey surface and building settlement points. There are approximately 4250 settlement instruments to be observed at varying frequencies over the course of the project, with 7 survey crews working together to complete daily monitoring tasks where there is active construction. One of the most challenging parts of this work is the traffic management. We work alongside On Track Safety Ltd and Toronto Police to manage the flow and safety of traffic, as well as the workers.