Haljackey
Active Member
I was not aware any of the 400-series highways having a design speed over 130 km/hr. Which one are you thinking?
It's mainly the curves that have a design speed of 130 km/h. Most straight sections can have 130+ design speeds... just look at the German Autobahns with no posted limit. The real factor here is safety. How safe is the roadway and how long are the accel/decel lanes? Most rural sections of the 401 that are straight and have a concrete median with inner and outer shoulders can easily handle traffic without speed restrictions. 130-150 is the recommended speed for these spans but a lot of people do 180+ in Germany and other places with no limit.
I'm not saying that having no restrictions would work for Ontario, but if you were driving closer to the actual design speed it wouldn't feel like you're crawling down the highway. People might actually obey a 120 or 130 speed limit (110 or so in urban areas and in poor weather conditions), thus it could make the road safer.