[OSM-talk] Examples at https://wiki.openstreetmap.org/wiki/Key:access

[Lester Caine]

On 24/05/2020 23:45, Mateusz Konieczny via talk wrote:
>     There are also many roads signed as "No HGVs except for access." It
>     is tempting to tag them as "hgv=destination" but that doesn't cover
>     the case where you are allowed to follow that route for many miles
>     and make several turnoffs IF you "need access". The current
>     definition of "access=destination" doesn't allow routers to
>     distinguish between truly "first/last segment only" and "its fine if
>     you are going to/from this general area".
> 
> AFAIK this awaits solution, at least I am not aware about even a tag 
> proposal.

A delivery driver following a drop list may have a drop on that road, 
and then go on to their next drop out of the other end of the road. In 
fact it may be that the road is impractical for the vehicle to turn 
around. The 'legal' restriction is to prevent lorries using it as a 
short cut through a residential or similar area and physically it is 
perfectly practical for the biggest legal vehicle. The router can simple 
avoid that road if there is no stop on it, but the tagging should 
ADDITIONALLY indicate if it is physically possible to get the vehicle to 
the destination so obstructions such as tight corner, overhanging 
buildings, weight restrictions and the like will prevent some of the 
examples of lorries blindly following their sat nav without their brains 
in gear? It is the routers problem to pick the best route, which may be 
to approach the destination from the other end and perhaps even indicate 
'back up to destination' ... now that WOULD be an intelligent router ... 
but if there is no information on which to base that decision even the 
driver has to guess.

-- 
Lester Caine - G8HFL
-----------------------------
Contact - https://lsces.uk/wiki/Contact
L.S.Caine Electronic Services - https://lsces.uk
Model Engineers Digital Workshop - https://medw.uk
Rainbow Digital Media - https://rainbowdigitalmedia.uk