[Talk-GB] Unfit for motors - tagging for routing

Nick Allen nick.allen.54 at gmail.com
Mon Dec 17 14:54:05 GMT 2012


This probably won't help the eventual tagging, but the 'unfit for 'wide 
/ long vehicles' bit is to do with legislation, both UK & nowadays 
European. I think the relevant bit is the 'Construction & Use 
Regulations' which lays down the maximum sizes for normal road usage. If 
the vehicle exceeds these dimensions (either weight, length, width or 
height' then they become an 'abnormal indivisible load', and require 
notifications to the police & other specialist departments before they 
are allowed to move. You also need special training & a permit / licence 
before you can drive one, and may need an escort if it is big enough. 
The vehicle is fitted with boards marking it as a 'long vehicle' or wide 
or whatever.

In simple terms, the dimensions have been standardised across the EEC, 
and if what your driving is big, it will be labelled as such & you will 
know anyway.


Nick (Tallguy)

On 17/12/12 14:35, cotswolds mapper wrote:
> [I'm a bit confused about replying to the group, hope this goes to the 
> right destination]
> Belated thanks for the various comments, I've been away.
> Of the various views, I tend to like highway=service + 
> designation=unclassified_highway as the most useful. There are a lot 
> of these signs in the Cotswolds - I could probably go out now and find 
> 100 before it gets dark. They include 'Unfit for HGVs' (or sometimes 
> lorries), 'Unfit for wide vehicles'/'Unfit for long vehicles' (but no 
> length/width given), 'Unfit for long and wide vehicles' (but 
> presumably your short and narrow heavy vehicle is OK), etc, etc. 
>  'Unsuitable' is sometimes used, but I think 'Unfit' is more common, I 
> suspect because it avoids a wider sign on a narrow road..
> I've been ignoring these signs as too difficult to deal with until 
> now, but I thought there ought to be a solution to the 'Unfit for 
> motors' one.  The legal definition is obviously important, but I think 
> something more is needed to make the map useful (IMO, usefulness of 
> the map is as important as accuracy).
> Many of the Unfit for motors signs are for roads that you would 
> happily drive along as one way streets, it's the lack of passing 
> places that makes them problematic. The same sign is used for a narrow 
> but decent tarmac road with no passing places for 400 yards and a lane 
> to a house that disintegrates into an impassable ORPA (in OS terms) 
> after the house.
> More generally, there are lots of rural areas where all the roads are 
> minor, but some are more (or less) minor than others. It would be 
> useful to have tags that can distinguish between the useful minor 
> roads and the ones that really are best avoided.
> I agree highway=service is unsatisfactory, but with 
> designation=unclassified_highway it seems the least worst route to a 
> helpful map.
> Rob
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