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US Highway data set?

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#1
David Medeiros

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I need a US highway shape-file for a current project. Does anybody have a good source for US interstate or highway data? Preferably free :D

David

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#2
James Hines

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Got lots of download time?

http://www2.census.g.../national-files

If you need alot of time to download add it into your price. And you will need to do a quarry to separate the road data.

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#3
jmcandrew

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You can try the downloads from CloudMade made from OpenStreetMap data:
http://downloads.clo...a/united_states

It's got way more than just highway data though.

#4
Nicholas_C

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National Atlas data?

http://nationalatlas...ptrans#chptrans

#5
natcase

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I'm fond of the Natioanal Transportation Atlas Database (NTAD), issued annually.
www.bts.gov/publications/national_transportation_atlas_database/2009/

Nat Case
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#6
David Medeiros

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Thanks all, I found what I was looking for on the National Atlas site. I had to actually read the metadata to determine the projection and coordinate system then MANUALLY set it in MAPub... it's like the dark ages! :D

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#7
p-dub

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I've been working with the National Highway Planning Network data. It seems to line up with all my other stuff really well.

http://www.fhwa.dot.gov/planning/nhpn/

I'd love to hear about some of the pros and cons of the aforementioned data sets from someone more experienced than me.

PW

#8
razornole

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I've been working with the National Highway Planning Network data. It seems to line up with all my other stuff really well.

http://www.fhwa.dot.gov/planning/nhpn/

I'd love to hear about some of the pros and cons of the aforementioned data sets from someone more experienced than me.

PW



For me it all depends on scale. I don't like the census data or from what I read about this data b/c it is produced by digitizing 1:100000 scale maps. Too coarse for me, but the scales that I work in are mostly local and occasionally regional. I like to use 1:24000 (25000) data and dumb/simplify it down in Illy. That way I have simplified data with beautiful curves that is still georeferenced well.

my two cents,
kru
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#9
s hubbard

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here's a NOAA major highway shapefile:
NOAA HIGHWAY SHAPEFILE
and ESRI's major road set:
ESRI HIGHWAY DATA SET
s hubbard
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#10
natcase

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I don't like the census data or from what I read about this data b/c it is produced by digitizing 1:100000 scale maps. Too coarse for me, but the scales that I work in are mostly local and occasionally regional.


It varies. Current (2009) TIGER data in urban areas is built at 1:10,000 and has some lovely curves to it. Surprise!

OTOH, there's still some of the 1:100,000 data out in rural areas.

Nat Case
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