My vote for most disregarded road sign goes to the warning at the side of a newly surfaced road. Typically, one is “instructed” to keep below 20mph (or even lower) because of flying grit. I have just returned from Edinburgh and used a stunningly beautiful A-road between the City and Newcastle. It is single carriageway for most of its 100-mile length and an 8-mile stretch has just been resurfaced. I don’t know how I managed to adhere to the speed restriction with at least three cars behind me flashing headlights and, in one case, leaning on the horn. I did so because I believe the signs are there for a purpose – either as a courtesy to other road users or on safety grounds. Of course, as they are not backed up by cameras, I was the only one to keep pay any regard. Eventually a straight stretch of road allowed five of the 30 or so cars behind me to pass in a shower of stones and abusive gestures.