Change lane without indicating

I know it has been a long time since my last post. A loads of things happened in my biker world, so will add other posts soon. Last week when I was riding to work there was a incident which was very close to became an accident. A car has started to change lane with indicating exactly at the time I got there. I had the helmet camera, so recorded the event.

I have rewatched the video a few times and also asked my colleague who is an IAM instructor to take a look at it. What I have learned from this experience:

• Treat bus lanes like filtering, slow down especially when the other lane is filled with stationary traffic. In this video I was doing maximum 20-25mph, and still the accident almost happened.
• Check the road layout. Expect that cars to pull at any time without indicating, especially before junctions.
• Check the wheels. On the video the wheel start turning seconds before the car moves. I know it is kind of hard to take a look at the wheels too, but you need to add it to your information gathering phase.
• Have a louder muffler. I am researching this option, but event the slip on mufflers are quite expensive (£2-300).