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 works on unsealed roads, including uncompleted works left overnight. The Handbook includ
HB 81.5-1998 history
2003HB 8195-2002 Flared type symmetric union tee with swivel nut (8195)
1970HB 81.5-1998 Field guide for traffic control at works on roads - Works on unsealed roads