Official Sources of Mapping Information

Map Editors Community United States
21

We have a section right on the CT page (that you did catch when you made your state list) just for Mapping Utilities… (http://www.waze.com/wiki/index.php/Connecticut#Mapping_Utilities)

I’ve only included state wide resources (that cover ALL of the 169 Cities & Towns) at this time because I haven’t been able to reliably find (and re-find later) up-to-date maps online from the individual Cities & Towns… But we’re a small state, and CT DOT does a great job - and their Functional Classification maps are by far the best way to determine road types in the state…

22

Yeah, I was pleasantly surprised when that link showed up live right away. Thanks for giving me some more ideas.

23

Although, not really an official source of mapping information, I recently came across this site: http://www.fhwa.dot.gov/trafficinfo/index.htm (National Traffic and Road Closure Information). It provides links to a bunch of sources (including links to all the state DOTs) that I find useful in addressing some URs.

24

Thanks. Added.

25

Florida (Central Florida counties/cities):

Kissimmee - http://map.kissimmee.org/Public%20Works/default.aspx
Lake - http://gis.lakecountyfl.gov/gisweb/
Marion - http://www.marioncountyfl.org/informationsystems/is_gis_maps.aspx
Orange - http://ocgis1.ocfl.net/Geocortex/Essentials/Web/Viewer.aspx?Site=InfomapPublic#
Polk - http://gisserver.polk-county.net/countyviewer/
Port Orange - http://www.port-orange.org/GIS/zoning/basic_viewer/index.html
Seminole - http://gis2.seminolecountyfl.gov/InformationKiosk/
Sumter - http://sumtergis.com/gis/
Volusia - http://maps.vcgov.org/vcmaps/dataviewer.htm

26

Caltrans actually uses Google for their map:
http://quickmap.dot.ca.gov/

27

While not for GIS information, it is being used for official Caltrans construction alerts. Not sure if that makes it safe to use or not.

28

IMO I’d say the information contained in the construction markers is usable. It’s information published elsewhere by Caltrans and contains all the information needed to locate what segment(s) it applies to.

29

North Texas (Dallas/Fort Worth and Suburbs)

www.dfwmaps.com (offered through North Central Texas Council of Governments)

30

Forum etiquette: unless you are going to discuss a specific part of a post, do not quote. Especially, never quote a long post in its entirety. It is waste of space and serves no purpose.

Thanks!

31

Hillsborough County GIS, Florida. (County Seat Tampa)

32

New Mexico

 NM DOT: [url]http://nmroads.com/[/url]

 Albuquerque: [url]http://www.cabq.gov/gis/[/url]

 Rio Rancho: [url]http://www.ci.rio-rancho.nm.us/index.aspx?NID=1312[/url]
33

Great idea. As an FYI, the Illinois link sent in the original post is very old and should not be used to gather current information on streets.

34

Yes, it does look like that IDOT general maps site contains older versions of the highway maps. At least the one township and one county I checked were last updated in the 90s.

The parent page has links maps such as the 5-year functional classification maps which have been updated more recently. Each county (we have 182) might have maps available on its own website.

There is a group of Illinois editors working on getting the state wiki pages, including reference info, in order so I’d recommend that (link is in my sig) for updated IL-specific resources going forward.

35

Clark County (Nevada) GIS Management Office:
http://gisgate.co.clark.nv.us/gismo/gismo.htm

36

Another good source of local Massachusetts roads is:

http://maps.massgis.state.ma.us/map_ol/oliver.php

Hint: turn on the “MassDOT Roads Street Names” Data Layer to get all the streets labeled.

37

State of Missouri spatial data clearinghouse:
http://msdis.missouri.edu/
This is the download link for every transportation file provided by the state:
ftp://msdis.missouri.edu/pub/state/transportation/st_trans06.e00.zip
But you are better off going here first and toggling on the transportation layers:
http://www.msdis.missouri.edu/data/themelist.html

They also have webservices:
http://msdis.missouri.edu/webservices/mapping/index.html
This is every road in the state cataloged by MoDOT as an ArcGIS REST endpoint:
http://msdisweb.missouri.edu/ArcGIS/rest/services/MoDOT_Roads_Quarterly_December_2012_WMS/MapServer
And as a KML generator REST endpoint:
http://msdisweb.missouri.edu/ArcGIS/rest/services/MoDOT_Roads_Quarterly_December_2012_WMS/MapServer/generatekml
These are ArcGIS REST endpoints for every quarterly updated of the roads layers:
http://msdisweb.missouri.edu/ArcGIS/rest/services/MSDIS_Download/MapServer/182

38

http://maps.mcassessor.maricopa.gov/default.aspx
Central Arizona
Also AZ511.com for Highway info

39

Texas:

City of Austin – http://austintexas.gov/department/gis-and-maps

40

The above URL for Georgia Transportation Maps has changed to the following:

http://www.dot.ga.gov/informationcenter/maps/Pages/default.aspx

Main Georgia DOT Website
http://www.dot.ga.gov/Pages/default.aspx

Georgia Navigator Map (LIVE)
http://www.511ga.org/

Georgia Travel Info – including Travel Alerts; Road Closures, etc.
http://www.dot.ga.gov/travelingingeorgia/Pages/TravelInfo.aspx

Additional GIS Data for Georgia
Georgia State University: http://research.library.gsu.edu/content.php?pid=178923&sid=2129632