Campaigners say car park extension at Manningtree station inhibits access to Dedham Vale and threatens habitats

A commuter car park in Essex is to be one of the first test cases of whether the government will enforce new legislation aimed at protecting national parks and landscapes in England.

Dedham Vale is a designated “national landscape” on the border of Essex and Suffolk, home to increasingly rare species including hazel dormice and hedgehogs. Within it is Manningtree station, where the train operator Greater Anglia built an extension to the car park to cope with increased traffic.