Drivers blast 'idiotic' 20mph speed limit sign next to 30mph warning Submitted by daniel on Wed, 11/10/2023 - 08:00 Picture Image Painted road markings showing that Streatham High Road, south London, was a 20mph zone suddenly appeared next to an existing 30mph sign on the busy thoroughfare last week. Read more about Drivers blast 'idiotic' 20mph speed limit sign next to 30mph warningAdd new comment