[Talk-us] MassGIS Road Import - Lanes

Greg Morgan dr.kludge.gm at gmail.com
Sat Sep 24 09:30:27 UTC 2016

I don't live there but Mapillary user marc has nice coverage for some of
the roads in question[1].  I am _guessing_ that a formula was developed
based on the width value that Massgis had in their data. Looking at
Mapillary while in JOSM, it almost looks like there is a one off error or a
condition in one area of Massachusetts did not apply to another area of
Massachusetts.  Again these are just guesses!  If you look at Massachusetts
Avenue via JOSM/Mapillary, the street looks like lanes = 2 except for a
turning lane here and there.

Massachusetts Avenue
width = 18.9; lanes = 3

Hancock Street
width = 12.2; lanes = 2

width = 7.6; lanes = 1


On Fri, Sep 23, 2016 at 11:27 AM, Spencer Gardner <spencergardner at gmail.com>

> Is anyone on here familiar with the process that was used to upload
> MassGIS road data for the state of Massachusetts? I'm noticing a lot of
> incorrect lane information on one-way residential streets and wondering if
> the bulk import process could be the cause. I'd love to hear if anyone else
> has come across this.
> For reference, see http://www.openstreetmap.org/way/8615602
> I haven't scoured the rest of the state, but Cambridge is riddled with
> one-way residential streets that all have lanes=2 when there's clearly only
> a single travel lane.
> Thanks
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