A bit of a bang

Walked Inca in the park as the light was fading fast. 
I was, stationary, sitting in traffic on the way home, when I heard a bang & got shunted forward. It turns out the driver behind didn't notice the traffic ahead was at a standstill, luckily she was going below 30 mph & I was well back from the car in front. Yes, the car is damaged but drivable, as I said to the other driver, worse things happen. We've exchanged details, she thanked me for being so reasonable, well it was an accident after all, but I wish I had gone the back way home.
I've just got to go through the insurance company, etc to get it sorted, they will have to supply a replacement car while mine gets fixed.