JISCMail - ROAD-TRANSPORT-TECHNOLOGY Archives

Ian, I agree totally with your observations and questions. I look forward to the answers. The axle loads used in Europe are much higher than we here in Australia.

I would like to add a further topic of discussion here, as we have started talking about road and bridge damage. As you know, Australian Higher Mass Limits Scheme, HMLS, requires road friendly suspension. I have little faith in the tests we use, but this is another discussion. Back to my 'further topic':

Excessive Tyre pressure adds unnecessarily to road damage, yet no one talks about this. Every tyre manufacturer, and world standards show that our drive and trailer tyres are severely over inflated; 25% over inflated when fully legally laden, but much worse when lightly loaded.

Over inflated tires significantly increase footprint loads, unnecessarily damaging infrastructure. When combined with transient loads on poorly un road friendly suspensions, aggravates this even further. We can easily affect tyre pressures, but, suspensions, wear and tear, worn out shocks, etc., are much more difficult to police.

On top of the infrastructure damage over inflated tyre cause, they also wear out faster, increasing our environmental damage, including the 60 odd liters of oil in every tyre, ie CO2. 20% over inflated driver tyres, on Aussie roads, wear out 22% faster. Casings also suffer shorter life. Traction and braking suffer. Suspension, trucks, and drivers suffer from higher levels of vibration, further increasing costs and downtime. All because tyres are over inflated. 100 psi is not correct for any heavy duty drive or trailer tyres. Most steer tyres are under inflated at these pressures. All drive and trailer tyres are 25% over inflated at this pressure with a maximum legal load. Optimal and correct tyre pressure for our 16.5 tonne on tandems, 8 tyres, is 80 psi.

Cheers

Chet Cline

AIR CTI

120 Walhalla Rd

Moe, Vic. 3825

Australia

> Date: Wed, 27 Apr 2016 09:48:47 +1000
> From: [log in to unmask]
> Subject: Re: regulations in non-European countries
> To: [log in to unmask]
>
> John,
>
> This is a great and worthwhile discussion.
>
> Since the 1990s, the bridge design code - specifically AS5100.7, which
> focusses on bridge assessments - has played a significant role in
> maintaining maximum axle loads in Australia. Also important to restricting
> axle loads is pavement wear. Recent years has seen robust discussion
> around ESA's (equivalent standard axles) and the development of a graph -
> the "blue" line and the "green" line - that determines when a vehicle is
> causing greater pavement wear on the network.
>
> Of great interest to me then are those countries that allow 24.0 tonnes on
> a tri-axle group, 1.5 tonnes higher than that allowed under the Higher Mass
> Limits Scheme in Australia. From an ESA and pavement wear perspective, how
> is this axle loading justified? Are the pavements better overseas? The
> same question could go for bridges. The bulk of structures in Australia
> were built pre 1976 and therefore meet the MS18 design code. Again, is
> this the case overseas? And if so, how is 24.0 tonnes on a tri-axle group
> justified? Is it because bridge engineers outside of Australia apply a
> different live loading?
>
> Answering these questions are key to understanding the rationale of the
> varied axle loads across the world.
>
> Regards,
>
> ----------------------------------------------------------------------------
>
> Ian Mond
> Senior Policy Analyst
> Road Transport Policy
> Policy and Programs
> Level 10
> 1 Spring Street, Melbourne, 3000
> Ph: 9854 1830
> Email: [log in to unmask]
> ------------------------------------------------------------------------------
>
>
>
> From: John de Pont <[log in to unmask]>
> To: [log in to unmask]
> Date: 26/04/2016 07:26 PM
> Subject: Re: regulations in non-European countries
> Sent by: "Technical, operational and economic aspects of road freight
> transportation" <[log in to unmask]>
>
>
> Ext: Business Area:
> Fax: Internet:
> File Name: File Description:
> This email is from an external source. If it is a Business Record remember
> to file it in QuickDocs
> --------------------------------------------------------------------------
>
>
>
>
>
> Hi Chris,
>
> I have followed up on your suggestion to have a panel discussion on
> regulatory reform at HVTT14. The program has not be formalised yet but my
> hope is to have this as the opening plenary session as a scene-setter for
> the whole conference. We are hoping to have the Minister of Transport open
> the conference and so it would be good to have a general overview session
> like this at the start which he could find interesting and useful.
>
> I am envisaging that there might be about six presenters on the panel and
> thus, necessarily each will only have a relatively short time slot. We
> would set each of them a set of four or five questions to address regarding
> the regulatory reform process in their jurisdictions. Some suggestions for
> these questions are:
>
> 1. What regulatory reform processes are currently occurring?
> 2. What are the primary motivations for these reforms? (safety,
> productivity, consistency, compliance etc)
> 3. What are the stakeholder engagement processes used?
> 4. What outcomes are you hoping to achieve?
>
> I am happy to receive further suggestions.
>
> Regards,
>
> John
>
> From: Technical, operational and economic aspects of road freight
> transportation [mailto:[log in to unmask]] On Behalf
> Of Christopher Walker
> Sent: Sunday, 24 April 2016 11:45 AM
> To: [log in to unmask]
> Subject: Re: regulations in non-European countries
>
> Great questions Johan
> And I am wondering if it might be possible to have a session at the next
> HVTT in NZ where we can discuss where regulation of weights and limits for
> heavy vehicles is going across different countries and regions across the
> world, and then consider what factors are supporting or blocking such
> limits. The list that Joop is preparing would be a great starting point
> for this discussion and could lead into a general discussion about key
> issues in heavy vehicle policy and regulatory reform across different
> countries and regions.
>
> John de Pont, do you think there is space within the HVTT program to
> schedule a session on this?
>
> Regards
>
> Dr Christopher Walker
> Head of School
>
> School of Social Sciences
> Faculty of Arts and Social Sciences
> UNSW AUSTRALIA
> UNSW SYDNEY NSW 2052 AUSTRALIA
> T: +61 (2) 9385 3571
> E: [log in to unmask]
> W: unsw.edu.au
> CRICOS Provider Code. 00098G
>
> School Web Site: http://socialsciences.arts.unsw.edu.au/
>
> From: "Technical, operational and economic aspects of road freight
> transportation" <[log in to unmask]> on behalf of
> "Granlund, Johan" <[log in to unmask]>
> Reply-To: "Granlund, Johan" <[log in to unmask]>
> Date: Saturday, 23 April 2016 9:51 pm
> To: "[log in to unmask]" <
> [log in to unmask]>
> Subject: Re: regulations in non-European countries
>
> Dear all,
>
> In addition to benchmarking regulations for weight & dimensions as Joop P
> is doing, it would be interesting to compare how different countries
> justify their policies upon limit values.
> WHY have vehicles been restricted to lengths X1, X2 etc and to weights Y1,
> Y2 etc?
>
> For example:
> - Political ambition to limit road haulage competitive advantage over rail
> transport,
> - Accessibility / urban planning,
> - Road safety,
> - ...
>
> Cheers,
> Johan Granlund
>
> Skickat från min iPhone
>
> 22 apr. 2016 kl. 13:09 skrev Marmy, Jacques <[log in to unmask]>:
> Dear Joop,
>
> Thank you for your note and please find attached from our IRU
> database the listed weights and dimensions that we collected from our
> members, which could be of great help to draw up your list.
>
> Best regards,
>
> Jacques Marmy
> Head - Technical Affairs
>
> <image001.png>
>
> iru.org
> Twitter│LinkedIn│Facebook
>
> From: Technical, operational and economic aspects of road freight
> transportation [mailto:[log in to unmask]] On
> Behalf Of Pauwelussen Joop
> Sent: vendredi 22 avril 2016 09:14
> To: [log in to unmask]
> Subject: regulations in non-European countries
>
> Dear colleagues
>
> In Europe (EC countries) we have the EC regulations concerning legal
> measurements and weights for trucks and trailers. These regulations
> are not valid in other parts of the world. We are interested in
> (references to) information on regulations (legal measurements and
> weights) and registration of trucks and trailers for non-European
> countries. We are happy to draw up the list of responses and share
> that afterwards.
> Thanks in advance
>
> Joop
>
> dr. Joop P. Pauwelussen MBA
> Director HAN Automotive
>
> HAN University of Applied Sciences | Office: Ruitenberglaan 29 | P.O.
> Box 2217, 6802 CE Arnhem | M 06 24 90 85 32 | E
> [log in to unmask] Secretary: [log in to unmask],
> [log in to unmask] |T (026) 38 49 332 | www.han.nl|
> www.hanautomotive.nl|www.acemobility.nl
> <image002.jpg>
>
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>
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