Is it time to start calling out bad cyclists?

The real shit is then turning right into Battersea Park. For some reason, taxis love parking on the left hand side of the road directly opposite the park gate. This means that, while you're stationary on the centre line of the road with your arm out, traffic coming from behind is squeezing between you and the taxi to your left. Plus your facing a stream of fairly heavy traffic (in both senses) coming the other way. Not nice.

I abandoned an attempt to route my old commute through the park for exactly that reason and chose the (equally stressful, but quicker) Queen's Circus roundabout and Prince of Wales Drive route instead.

If you want to experience the full joy of London cycling infrastructure you can go past the turn for the park and turn left onto the pavement to wait for the Toucan crossing onto the right hand side. I think the remaining few meters to the park is a cycle path. You might want to take a book to read whilst you wait though.