[Talk-GB] [talk-gb] No HGVs except for loading / access

[Colin Smale]

It appears that the government treat MAM and MGW as equal

"Maximum authorised mass (MAM) means the weight of a vehicle or trailer including the maximum load that can be carried safely when it’s being used on the road.

This is also known as gross vehicle weight (GVW) or permissible maximum weight."

https://www.gov.uk/vehicle-weights-explained


> On 08/28/2021 3:46 AM Dave F via Talk-GB <talk-gb at openstreetmap.org> wrote:
> 
>  
> On 27/08/2021 21:42, David Woolley wrote:
> > On 27/08/2021 17:50, Edward Bainton wrote:
> >> 2. How to tag? I'm using maxweightrating=7.5 for the sign, but not 
> >> clear how to code the exception in addition.
> >
> > It is not the maximum weight, it is the maximum maximum (sic) 
> > authorised mass (MAM used to be, less accurately referred to as 
> > maximum gross weight).  The actual mass might be less than 7.5 tonne
> 
> MAM is manufacturer specified.
> 
> maximum gross weight (MGW) is weight classification specified by the 
> Government & currently used on road signs.
> 
> https://www.gov.uk/government/publications/guide-to-lorry-types-and-weights
> 
> Imagine the size of the signs if every manufacturer's MAM had to be listed?
> 
> 
> > , but, if it could be legally fully loaded to more than that it 
> > wouldn't be allowed.
> 
> If MAM is >7.5 tonnes it would have a MGW class of 18 tonnes.
> 
> >
> > I assume that maximum weight, in relation to weak bridges, refers to 
> > the actual weight at the time.
> 
> To enforce a regulation that would require the police escorting every 
> lorry to a weighbridge for verification.
> 
> Instead, they counted the axles when this restriction was introduced:
> 
> https://richardwyattblog.files.wordpress.com/2020/02/img_4124.jpeg?w=2048
> 
> DaveF
> 
> 
> 
> 
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