The leader of Kent County Council has voiced his disquiet over the reliance on Operation Brock to ease disruption and delays on the M20. The scheme sees lorries heading to Dover queue on the coastbound side between Ashford and Maidstone, with the London-bound carriageway operating as a contraflow with narrow lanes and a 50mph limit. But Cllr Roger Gough (Con) says he is frustrated by the absence of other options available as drivers continue to face hold-ups on the 13-mile stretch between Junction 9 for Ashford and 8 for Leeds Castle. Speaking before the announcement that Brock would return ah…