They had speed humps allover knightsbridge which were laid down in the mid 90's
Then Mr livingstone they introduced the Bendy Bus and low floor bus for disabled passengers.
Day 1, 09:00 one Sunday morning 100 new buses hit the streets of West and central London.
Day 1 09;30 a code red alert goes out from TFL informing all low floor Buses to pull over and stop.
5 buses had frontal damage and one (Idiot) ripped the front axle off.
Over the next 6 months a big dig up operation was ensued to lower the humps and remove completely the ones on Bus routes.
Had they decided not to do a u-turn on the Routemaster which was higher, none of the above would have happened.