[Talk-GB] Maxspeed conundrum

[Peter Miller]

I suggest that any 'temporary' speed limit change that will last more than 6
months could reasonably be tagged in maxspeed. Shorter periods should
probably use a maxspeed:temporary or some other suitable overriding tag?

Fyi, I have used 'proposed:maxspeed' to hold the intended new value where
signals are being introduced. 'construction:maxspeed' would I guess be
appropriate where work has started. I have also used construction:lanes for
sections of the M25 where the number of lanes is changing from 3 to 4. Also
construction:oneway=no for a section of the A11 which will become a 2-way
road when the A11 dualling is complete.

Here are some examples:
http://www.openstreetmap.org/browse/way/4546874 (proposed:maxspeed)
http://www.openstreetmap.org/browse/way/26295971 (construction:lanes)

If we go with the above speed limit tagging then it might be worth updating
the ITO speed limit view to show temporary and planned changes to speed
limits.


Regards,


Peter


On 29 July 2011 10:27, Kev js1982 <osm at kevswindells.eu> wrote:

> on the a46 dualling I have been putting the reduced limits in, but here the
> road is on a new alignment so its for the rest of the life of the road
> (until is becomes part of ncn route 48 anyway!) .
>
> Shame there's no way AFAIK of tagging fixme:2013-05-01=roadworks due to
> finish,  resurvey alignment/maxspeed
> and then have openstreet bugs ignore until that date (unless you wish to
> see them)!
>
> On 29 Jul 2011 10:13, "Brian Prangle" <bprangle at gmail.com> wrote:
>
> The  M1 between junctions 11 and 13  is a standard 70 mph  NSL, but until
> spring 2013 it  is a 50mph average speed camera regulated section during
> upgrade works. After Spring 2013 it will become maxspeed=signals.  How to
> tag it?  My preference would be for the 50mph average speed with a note that
> it ends spring 2013. My guess is that sections rolling from the South will
> transform from 50 mph to maxspeed=signals, so those of you who travel this
> section of the M1 should watch out for the big switch on and edit
> appropriately - it will certainly make life swifter than the current
> congestion.
>
> As a general point do routing and travel planner algorithms make use of
> these long term construction speed restrictions?
>
> Regards
>
> Brian
>
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