Teaching old dogs new tricks

Presentation

Teaching old dogsnew tricks

Rob Di Cristoforo, Advantia Transport Consulting

Dog domination

Before PBS: Same footprint, different mass

• General access:– 19m B-double 50.5 t– 19m truck and dog 50.5 t

(Less in some states)• B-double access:

– 19m B-double 57.5 t– Dogs went hungry– Safety reasons

After PBS• General access 50.5 tonnes• B-double access 57.5 tonnes• As long as certain requirements met

– e.g. Bin height limit• Can these weights be introduced generally,

without PBS approval?

Typical template - dimensions

These dimensions are not critical!

Typical template – bin height• Bin height limits necessary

– Level 1 – High Speed Transient Offtracking– Level 2 – Rearward Amplification

• Suspensions and tyres– Broader range works for lower bin height– Narrower range works for higher bin height– Up to 2.85 m typical for quarry work with a good

range of suspensions

Managing risk• Many non-PBS vehicles do not meet

PBS standards• A prescriptive approach should not require

100% certainty of meeting standards• We should be satisfied with vehicles

‘probably’ meeting the standards

Proposal - dimensions• Key longitudinal dimensions to be within

broad specified ranges• 2.85 m height limit• Bridge formulae• No need for further constraint

Proposal – suspensions, tyres• Suspensions

– Certified RFS all positions except steer• Tyres

– No conditions

Proposal – truck specs• 6.5 tonne steer axle requirements

– Emissions ADR 80/01 (Euro IV) or later– FUPD UN ECE Reg 93– Cab strength UN ECE Reg 29

• ABS or EBS• Minimum 410 HP

Proposal – trailer specs• EBS with roll stability

National policy development• Should commence ASAP• Should involve:

– PBS Assessors– PBS Certifiers– Truck and trailer manufacturers– End users– Not road authorities