Manual for Streetsby Great Britain. Department for Communities and Local Government, Welsh Assembly, Great Britain. Department for Transport
(Paperback - published 26 Mar 2007 by Thomas Telford Ltd)
Traffic Signs Manual: The Design of Traffic Signs Chapter 7by The Stationery Office, Great Britain. Department for Transport, The Scottish Executive, The National Assembly for Wales, The Department for Regional Development
(Paperback - published 07 Nov 2003 by Stationery Office Books)
Road Casualties Great Britain 2003by Office for National Statistics, Great Britain. Department for Transport
(Paperback - published 30 Sep 2004 by Stationery Office Books)