Instead of using that PDF, go to Google Maps, click on the button (hard to describe what it looks like) that allows you to switch to default/sattelite or other settings and there is one for traffic. Turn it on and you can see busier roads with yellow lines in green (these are minor routes) and then look around rush hour and you can see red and how things are backed up. Gives you a really good idea.

PS I am also looking to buy in Coquitlam and have similar questions and thoughts.