I witnessed an accident this morning. Large roundabout, 3 lanes: turn left, straight on and turn right. First car in left lane waits for 2 people they'd called out to to get in the car. Car behind edges forward a little then stops. First car starts to pull forward to see around a bus at the front of the straight across lane. Second car accelerates right into the back of the first car as if it wasn't there and as if the roundabout was clear but the second car couldn't see the traffic on the roundabout because of the bus.
Talking of buses, some of them have a notice on the right hand side: "Please let me pull out" and reference to highway code rule 223:
Rule 223
Buses, coaches and trams. Give priority to these vehicles when you can do so safely, especially when they signal to pull away from stops. Look out for people getting off a bus or tram and crossing the road.
I've been using the buses a lot lately because of a bad back. I know rule 223 isn't a "must" but the amount of people who have to get in front of the bus before it pulls out of the bus stop (off road lay by type) is amazing. I've been on buses that have had to wait 5 minutes to pull out on busy roads.
Where the bus stop is actually on the road it amazes me how many drivers will take chances and just go round the bus, often stopping traffic coming in the other direction. They even overtake once the bus has started moving causing the bus to slow down or stop just so they're in front.
There are too many motor vehicles on the road driven by too many people who are impatient and who have forgotten the highway code and too few measures to police the roads.