Cawthra (SB) at the Dundas underpass
Cawthra Rd. crosses Dundas St. via an underpass. Drivers proceeding south, will usually find a series of police cars lined up at the other end of the underpass, with a police officer standing behind a hydro pole.
Cawthra is a 5 lane route in a residential neighbourhood, with a speedlimit of 50km/hr. The underpass separates the residential area with the light industrial section. On the way down, vehicles can easily reach 70km/hr. unless drivers brake for the entire stretch.