RMS consents to BAB-quads in nation’s northwest
The rst road manager consent to the National Heavy Vehicle Regulator (NHVR) has been granted for a prescriptive BAB- quad on the currently approved Type 2 road train route on the Mitchell Highway between North Bourke and the Queensland border at Barringun.
Roads and Maritime Services (RMS) says Transport for NSW has completed a review of the NSW access policy for Type 2 road train quad trailer combinations and has now opened access on this approved route for prescriptive BAB and ABB- quad combinations under equivalent conditions to those which apply to current legacy A-triple Type 2 road trains.
Operation for these two quad trailer combinations is also available up to 4.6m high on this route. Previous policy required such combinations to be rst approved through the national performancebased standards scheme.
“Access for AAB- quad road trains will be considered on a caseby- case basis and subject to demonstrated performance being no worse than the current A-triple’s performance,” an RMS regulatory update states.
“Due to the additional axles and thus increased total mass of this combination, additional bridge assessments may be required.”
Because of the unknown comparative performance of the BAA- quad road trains, this access decision does not apply to them.