Expedite_climb is right - the bus's front wheels just straddle the speedbumps, but the rear inboard wheels catch them. Sit in the centre of the bus to avoid being thrown up and down.
Another example of ill thought out 'traffic calming' measures. It's bad enough being consigned to Camp X-Ray without the insult of these wretched devices which seem either to slow the traffic to 15mph or, when it's fairly quiet, to throw all the traffic into the middle of the road.
How long until the next RTA? Think again BAA - I assume our Airlines are paying for all this!!
Cheers
mcdhu