Defines requirements for interchangeability of vehicles used in articulated vehicle combinations, in normal use on both sealed and unsealed roads. The requirements are applicable to prime movers, semitrailers and converter dollies to provide compatibility and adequate clearance.

This Standard specifies requirements for interchangeability of non-dedicated articulated combination vehicles in normal use on both sealed and unsealed roads.The requirements are applicable to prime movers, converter dollies, and semitrailers (including those used in B-double combinations).This Standard covers the interchangeability for coupling of prime movers, converter dollies, and semitrailers to provide compatibility and adequate clearances, however it will not guarantee that any particular vehicle combination will satisfy legal requirements (e.g. vehicle dimensions, or load distribution), or provide optimum dynamic stability.Clearances around the point of articulation are specified for operation of a vehicle at its maximum permitted dimensions, when at angles of pitch of 6 forward, 7 rearward, and for angles up to 45 of articulation.

First published as part of AS D17-1970.Revised and redesignated AS 2174-1978.Revised and redesignated in part as AS 2174.1-1994. First published as part of AS D17-1970. Revised and redesignated AS 2174-1978. Revised and redesignated in part as AS 2174.1-1994.