The new Australian Standard for road-rail vehicles, AS7502 was published on July 1st 2016.

Following many months of work by the Rail Industry Safety and Standards Board (RISSB), the Office of the National Rail Safety Regulator (ONRSR) and industry experts, AS7502 sets out the minimum standard to which, road-rail vehicles should be designed and manufactured.

RISSB members may download the standard from the RISSB website and non-members can purchase it from SAI Global

The standard covers all aspects of vehicle from braking systems and event recorders to engineering, design and manufacture. There is far too much to list here so here are some points of interest:

Design and Engineering

All road rail equipment must be designed by a qualified engineer. AS7502 sets out a number of loads that the road-rail equipment must be able to withstand and the engineer must be able to demonstrate compliance in an engineeringdesign report that includes how the loads have been determined – It is no longer acceptable to only produce a simple one or two page certificate.

The designer must conduct a thorough analysis of the vehicle chassis to determine that is is suitable for use on-rail and that it can withstand the loads applied.

Twist Test

All road-rail vehicles must be subject to an annual twist test. Previously some networks only required a twist test to be carried out when the vehicle was constructed. It is now mandatory that all road-rail vehicles are subject to a twist test every year.