This Handbook comprises an illustrated plain English field guide intended for both the training of, and use in the field by, junior supervisory personnel involved in long-term roadworks on urban roads including partial closures and detours. This Handbook
HB 81.8-2000 history
2003HB 8198-2002 Flared type symmetric union tee with swivel nut (8198)
1970HB 81.8-2000 Field guide for traffic control at works on roads - Long-term partial closures and detours on urban roads