Required Physical Impediments For 30 Km/hr Zone
I got ticketed for going 50 km/hr in a 30 km/hr zone (in Toronto). I want to base my defense on the premise that the 30 km/hr speed limit is not valid, because no "physical impediments for purposes of reducing traffic speed" are present on this section of the street (from intersection to where I got stopped, about 200 m from the intersection). There is signage of the 30 km/hr rate, but I want to base my defense on the fact that the required physical impediments were not present. (There is a bollard at the other end of the street, but I did not pass by it.) Other streets running parallel to this street have speed humps every 100 m or so, but this is a TTC route, so there are no speed humps.
Does this defense have a good chance?
What would I need to do in court to make it work?