Last night I was riding through the city and I passed a guy ~500meters from a major intersection. We were both in the far left lane. As I neared the intersection I had to cross over two lanes to get onto the road I wanted. As I sat there in the left lane of the intersection, which is normally only used by buses, I noticed the guy I had passed sitting 3 lanes further over near the median strip. I looked at him dumbfounded for a while as all the traffic started to line up behind him. I realised he was clearly in the wrong place, as the road has no other streets for the next mile, so he couldn't be thinking of turning off anytime soon. I asked him if he was heading in the same direction as me, and he said yes. I replied with "you better look out for those guys" pointing to all the traffic. He looked back over his shoulder, and realised he was in the wrong place, but it was too late as the lights were about to go green. They turned green and I watched for a few seconds as he tried to get across 3 lanes of city traffic, he wasn't having any luck. I thought for sure he was going to get creamed so I took off and didn't look back, that's the last thing need to see, some moron getting run over. What I want to know is why didn't he fall in behind me at the lights, if he didn't know the rules, surely he would follow someone else's example.
Here is a pic to make things clearer. We ride on the left. There are other roads to the left and right but I have left them out to keep it simple.