As you can see the street narrows beyond the junction thanks to the addition of a cycle lane to the right hand side. I almost never use this cycle lane given that I usually queue up on the left hand side of the junction thanks to the manner in which I filter into the road at an earlier point.
Today I was queued up on the left in the ASL, a little ahead of the rest of the traffic. When the lights went green, I went off, albeit a little bit slowly because of a new chain that I had fitted last night occasionally slipping.
This meant that as I approached the area where the road narrowed the traffic behind had gained on me a little.
At this point I heard the engine noise of a substantial lorry shifting up a gear and accelerating.
Prompted by this I looked to my right and lo and behold a large lorry was bearing down on my shoulder, filtering into the narrowed road.
I braked, he went by and everything was fine.
However if I hadn't heard that gear shift from the lorry the situation would have panned out in a far more dangerous manner.
It was a minor incident and nothing came of it but it was also just the kind of scenario in which a couple of late or stupid decisions could have changed the game completely.