[Talk-ca] Data Source for Surrey Roads

[Paul Norman]

I just finished converting the Surrey road data to a .osm file. This may be
of interest to anyone mapping in the Surrey area.

I've posted it to http://maps.paulnorman.ca/surrey/SurreyRoads2010.zip along
with the ogr2osm translation file I wrote.

I'm not planning to import it wholesale, just selectively if I have to
update a road, and I plan to move some tags over on major roads (maxspeed,
lanes, hgv=*, hazmat=*)

Some notes on the strengths and weakness of the data

Weaknesses:
- Ways are not dualized. This road data was intended for their printed maps
which do not have dualized roads. Incidentally, I purchased one of those
maps.

- Some roads are off in position. Most are extremely good with 40cm error,
but some have jogs that are out of place by a few meters. 

- Odd classifications. Some roads are classified strangely. This only
impacts secondary and primary roads.

Strengths:

- It is very recent, with roads not constructed until late 2010 present in
the data

- The postions seem slightly better than GeoBase

- It has truck access and hazardous material restrictions

- It has speed and lane information


The tagging of a typical road is

highway=residential
lanes=2
maxspeed=50
name=58 Avenue
source=City of Surrey 2010 GIS Data
surface=Asphalt
surrey:geodb_oid:496

while a highway looks like

hazmat=designated
hgv=designated
highway=primary
etc.


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Re: [Talk-ca] Data Source for Surrey Roads

[Paul Norman]

PDDL - essentially public domain. Surrey makes their data available at
http://www.surrey.ca/city-services/658.aspx and the roads data is found as
trnRoadCentrelines in SurreyProperty or SurreyTransportation. Surrey really
seems to get open data. They make their data available under open terms and
provide lots of detail in their shapefiles, and let the users decide what to
do.


 -Original Message-
 From: Corey Burger [mailto:corey.bur...@gmail.com]
 Subject: Re: [Talk-ca] Data Source for Surrey Roads
 
 Nifty stuff. My one concern is with the license. What is the license
 behind this data?
 
 Corey
 
 On Mon, Mar 28, 2011 at 4:43 PM, Paul Norman penor...@mac.com wrote:
  I just finished converting the Surrey road data to a .osm file. This
  may be of interest to anyone mapping in the Surrey area.
 
  I've posted it to http://maps.paulnorman.ca/surrey/SurreyRoads2010.zip
  along with the ogr2osm translation file I wrote.
 
  I'm not planning to import it wholesale, just selectively if I have to
  update a road, and I plan to move some tags over on major roads
  (maxspeed, lanes, hgv=*, hazmat=*)
 
  Some notes on the strengths and weakness of the data
 
  Weaknesses:
  - Ways are not dualized. This road data was intended for their printed
  maps which do not have dualized roads. Incidentally, I purchased one
  of those maps.
 
  - Some roads are off in position. Most are extremely good with 40cm
  error, but some have jogs that are out of place by a few meters.
 
  - Odd classifications. Some roads are classified strangely. This only
  impacts secondary and primary roads.
 
  Strengths:
 
  - It is very recent, with roads not constructed until late 2010
  present in the data
 
  - The postions seem slightly better than GeoBase
 
  - It has truck access and hazardous material restrictions
 
  - It has speed and lane information
 
 
  The tagging of a typical road is
 
  highway=residential
  lanes=2
  maxspeed=50
  name=58 Avenue
  source=City of Surrey 2010 GIS Data
  surface=Asphalt
  surrey:geodb_oid:496
 
  while a highway looks like
 
  hazmat=designated
  hgv=designated
  highway=primary
  etc.
 
 
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