The county council has a list of 600 places where traffic calming schemes have been requested.
Oxfordshire Ambulance Service chief executive Fred Thornley says the humps are a significant hindrance to ambulance crews responding to emergency calls. It was ironic that very often councillors and members of the public complained about response times to calls.
'We are in a no win situation. While we make every effort to respond quickly, if you are inhibited by road humps, how can you do it?' he asked.
On estates and areas where rat-running risked life and limb of children and residents, it was accepted there was a need to install them. The consultation process was very important.