Mole-In-The-Know has been doing a little research into why perfectly clear
'dual carriageways' - caused by roadworks on the third lane of motorways (and frequently without any work going on) - always have absurd 50mph limits
policed by average speed cameras.They cause delays, bottlenecks and considerable irritation for drivers. I have known some as long as 22 miles! The cameras rub salt into the wound.
Apparently, according to MITK, this absurdity is in place for 'insurance reasons'.
