Can anyone tell me what requirements exist covering works on the public highway and traffic control. In Chepstow near where I live there are traffic lights covering an area of about half a mile reducing the road to one lane. The work being done is cable pulling through ducting under the pavement. What is the requirement for closing off the road etc. Just interested in finding out nothing more.

Thanks Grim, quite a latge document so will have a look in detail and find out what I want to understand when I get a wek or two by the look of it. Seems to be longer reading than waiting in the traffic jam.

Show me a piece of legislation that doesn't cure insomnia and I'll be amazed. If it's in a pdf format you should be able to search the document by keyword which might make life easier.