Dropped kerbs
This is from the AA site
The AA is keen to advise motorists of changes to parking enforcement which come into force. Motorists may be unaware that they can get ticketed for parking at a dropped curb or half a meter from the pavement.
This is to prevent the blocking of driveways and double parking. There are no street signs to indicate these offences so the AA hopes that the Civil Enforcement Officers will show some flexibility until the message gets across to motorists.