[Tagging] Maxspeed

Philip Barnes phil at trigpoint.me.uk
Sat May 16 09:42:09 UTC 2015


On Fri, 2015-05-15 at 16:13 -0500, John F. Eldredge wrote:
> I have seen some tight intersections, with buildings directly
> adjoining the roadway at all four corners, where a "maxlength" tag
> would also be useful. A passenger car or a delivery truck would be
> able to turn the corner, but a tractor-trailer rig (heavy goods
> vehicle) or bus would get wedged in place.
> 
> 
It would be unusual for that to not be accompanied by some sort of legal
restriction signs, maybe no hgv, no buses or a plain maximum length
sign. 

Like maxspeed, maxlength should be the legal length, as signed.

Phil (trigpoint)

> On May 13, 2015 6:15:22 AM CDT, Paul Johnson <baloo at ursamundi.org>
> wrote:
>         On Wed, May 13, 2015 at 4:03 AM, Colin Smale
>         <colin.smale at xs4all.nl> wrote:
>                 Don't agree with this... there have been discussions
>                 in the past about whether the "width" of a "way"
>                 includes the pavements etc... Where a road goes under
>                 a bridge, where do you measure the "height" of the
>                 road? The highest point (not good enough for vehicles)
>                 or the "lowest highest point" or "in the middle of the
>                 road"? I would expect maxheight:physical to apply to a
>                 "normal vehicle", of maybe 2.5m width.
>                 
>                 
>         There are cases where maxheight:physical and maxwidth:physical
>         may be different from the legal definitions and significantly
>         affect the viability.  A standout problem regularly occurs in
>         Oregon where you can have human powered vehicles up to about 3
>         feet wide legally, but many cycleways, particularly older ones
>         built before the 1990s, have barriers that make all but the
>         10-speeds with drop bars impractical as negotiating the
>         barriers that keep motorists out also prevent longer or wider
>         bicycles from fitting.  Similar issues exist on Oklahoma
>         turnpikes, which commonly allow vehicles up to 11'6" wide, but
>         the typical cash toll booth is only capable of fitting a 9'5"
>         wide vehicle.  Go figure.
>         
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