Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation red-and-yellow light Yellow light comes on for a few seconds flashing yellow arrow. view article Traffic-light signalling and operation Traffic-light signalling and operation join the flashing yellow club view article Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation Traffic-light signalling and operation Yellow light comes on for a few seconds Traffic-light signalling and operation Traffic-light signalling and operation Yellow light comes on for a few seconds Traffic-light signalling and operation Traffic-light signalling and operation