In my view the BAA have manufactued a situation that will result in a death after all the road is now configered so that all the traffic is channeled down the middle of the road , a head on accident is bound to happen.
The important thing from the point of view of the BAA is that when this inevitable "accident" happens they will stand up in court and say that they had introduced a traffic calming system to prevent this and that if drivers went over the bumps at 10 MPH ( insted of trying to avoid the bumps in the middle of the road ) the accident would not have happend.
The BAA had to be seen to be doing something and so as long as it was leagal and they aviod being taken to court for it then from a BAA standpont it is a good idea !.
The bottom BAA line is that the safety of staff comes a poor second to the management covering there backs and the message to staff is that YOU ARE EXPENDABLE as long as the BAA keeps out of the courts.