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

[Dave F]

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