This column is dedicated to the middle aged male driver who turned left in the intersection and completed the turn half way into my lane as I approached him and half way into the lane that he was supposed to be using. Was he being inattentive, careless or did he not know any better?
Unless you are using an intersection that allows a left turn from multiple lanes, you approach the intersection in the lane closest to the center line. Enter the intersection itself with your vehicle still positioned to the right of the center line. If it is possible, turn your vehicle in an arc with an apex to the right of the center of the intersection. Enter the first available lane for your direction of traffic, with your vehicle positioned to the right of the center line of that road before you leave the intersection.
If multiple lanes are allowed to turn left, exit from and enter into the corresponding lanes on either side of the intersection in the manner outlined already. Of course, it may not be possible to remain to the left of the center of the intersection depending on the lane that you are in. Also, while it may not be illegal to change lanes in an intersection, a defensive driver will not do so.
Sir, you stick to your lane and I will stick to mine. While you may otherwise be a nice person, I don't want to accidentally meet you at an intersection!
Reference Link: http://www.drivesmartbc.ca/intersections/making-left-turn-intersection