State Traffic Data Viewers

[webny99]

There are many times where traffic counts on a given roadway are relevant to discussion, or referred to, here on the forum, so I thought it would be a good idea to get a list going of the AADT/ traffic data viewing sites for each state.
Every state does it a little differently, so it will be interesting to see. Thanks to everyone's contributions, we now have an AADT/traffic data source for every state (and an interactive map for most states).

Alabama l Alaska l Arizona l Arkansas l California l Colorado l Connecticut l Delaware l Florida l Georgia l Hawaii l Idaho l Illinois l Indiana l Iowa l Kansas l Kentucky l Louisiana l Maine l Maryland l Massachusetts l Michigan l Minnesota l Mississippi l Missouri l Montana l Nebraska l Nevada l New Hampshire l New Jersey l New Mexico l New York l North Carolina l North Dakota l Ohio l Oklahoma l Oregon l Pennsylvania l Rhode Island l South Carolina l South Dakota l Tennessee l Texas l Utah l Vermont l Virginia l Washington l West Virginia l Wisconsin l Wyoming

[jakeroot]

For Washington (WA):

WSDOT's Traffic Data Geoportal is an interactive map:
https://www.wsdot.wa.gov/data/tools/geoportal/?config=traffic

There's also a GIS page that allows you to download .gdb files for use in ArcMap or ArcGIS:
https://www.wsdot.wa.gov/mapsdata/geodatacatalog/Maps/noscale/DOT_TDO/TrafficGeoportal/TrafficGeoportalSourceDataIDX.htm

[Brandon]

Illinois, IDOT:

Statewide: http://www.idot.illinois.gov/Assets/uploads/files/Transportation-System/Maps-&-Charts/2017%20AADT%20Statewide%20Primary%20System.pdf
Chicagoland: http://www.idot.illinois.gov/Assets/uploads/files/Transportation-System/Maps-&-Charts/2017%20AADT%20State%20Primary%20System-Chicago.pdf
Metro East: http://www.idot.illinois.gov/Assets/uploads/files/Transportation-System/Maps-&-Charts/2017%20AADT%20State%20Primary%20System-East%20St.%20Louis.pdf

Interactive: http://www.gettingaroundillinois.com/gai.htm?mt=aadt

[vdeane]

Québec has an online viewer with a lot of info, just make sure you're comfortable reading French.  The main viewer defaults to their version on NY's Functional Class viewer (which unfortunately the current version only includes roads maintained by the province, federal government, or under a P3; the old version, which is fortunately still online, included everything), but it has AADT as well as a lot of other items (there's also a link that defaults to the AADT data).
http://transports.atlas.gouv.qc.ca/Infrastructures/InfrastructuresRoutier.asp
https://geoegl.msp.gouv.qc.ca/igo2/apercu-qc/?context=mtq&visiblelayers=circulation_routier

[ozarkman417]

https://www.modot.org/traffic-volume-maps

MoDOT has both an interactive map and pdfs. PDFs are from 2016. One nice feature with the interactive maps is that it shows direction-specific data, as opposed to combined.

EDIT: There is an archive of AADT maps going back to 2000.

[DaBigE]

WisDOT: https://wisconsindot.gov/Pages/projects/data-plan/traf-counts/default.aspx
On that page is a link to a current count map, and continuous (permanent counter locations) in PDF form (2011-2014)

WisDOT (via the TOPS Lab) continuous counter data in PDF and Excel form, by county: http://transportal.cee.wisc.edu/products/hourly-traffic-data/byloctext/
The date availability varies, but is anything from 2000 thru 2019.

[doorknob60]

Idaho

This map shows the locations of the traffic counters. You can click on the counter, click the "More Info" link, and it will show all historic and current data for it.
Link: https://iplan.maps.arcgis.com/apps/webappviewer/index.html?id=0a36396e6fa744ee937a5dc7afa0ebb7

This map color codes road segments based on traffic counts, and you can click on the segment for a breakdown of passenger and commercial traffic. Also includes many local roads.
Link: https://iplan.maps.arcgis.com/apps/webappviewer/index.html?id=e8b58a3466e74f249cca6aad30e83ba2

I have to say, I didn't know that second map existed, and it's really cool. For what it's worth, I got the links from here, might be some other stuff of interest too, and just in case they change or add anything: https://itd.idaho.gov/road-data/

[Roadsguy]

PennDOT also has county-specific traffic volume maps as well as TIRe, which can be used for traffic volume data, among other things.

MassDOT, NJDOT, and NCDOT have interactive viewers as well.

[hbelkins]

Kentucky's interactive map:

http://maps.kytc.ky.gov/photolog/?config=TrafficCounts

[Beltway]

Virginia --
http://www.virginiadot.org/info/ct-trafficcounts.asp

Available in PDF and Excel formats.

[US 89]

Utah collects AADT data for both state and federal-aid routes:

https://data-uplan.opendata.arcgis.com/datasets/aadt-open-data?selectedAttribute=AADT2017

[SeriesE]

California - https://dot.ca.gov/programs/traffic-operations/census
in Webpage format or PDF

[sprjus4]

Virginia --
http://www.virginiadot.org/info/ct-trafficcounts.asp

Available in PDF and Excel formats.

Interactive - https://www.arcgis.com/home/item.html?id=bff29e1bc0fd4908b2c035fe67695088

[jeffandnicole]

New Jersey's base page for AADT, which gives plenty of detail into all their collection systems: https://www.state.nj.us/transportation/refdata/roadway/

More specific to this thread: https://www.njtms.org/map/

[ftballfan]

Michigan has interactive trunkline and non-trunkline AADT maps:
https://www.michigan.gov/mdot/0,4616,7-151-11151_11033-22141--,00.html

[sprjus4]

North Carolina AADT Map - https://www.arcgis.com/home/item.html?id=b7a26d6d8abd419f8c27f58a607b25a1

[Eth]

GDOT's interactive map can be found here.

[pianocello]

If you're GIS inclined, the FHWA compiles annual Highway Performance Monitoring System shapefiles, which include AADT, among many other things. Link: https://www.fhwa.dot.gov/policyinformation/hpms/shapefiles.cfm

For Iowa, traffic data can be found in maps here: https://iowadot.gov/maps/Digital-maps/State-maps/State-map-page. If you look elsewhere in the DOT website, you can also find traffic data at a county and city level as well.

[sprjus4]

So far for maps...

Alabama
Alaska
Arizona
Arkansas
California
Colorado - http://dtdapps.coloradodot.info/otis/TrafficData
Connecticut
Delaware
Florida
Georgia - https://gdottrafficdata.drakewell.com/publicmultinodemap.asp
Hawaii
Idaho - https://iplan.maps.arcgis.com/apps/webappviewer/index.html?id=e8b58a3466e74f249cca6aad30e83ba2
Illinois - http://www.gettingaroundillinois.com/gai.htm?mt=aadt
Indiana
Iowa
Kansas
Kentucky - http://maps.kytc.ky.gov/photolog/?config=TrafficCounts
Louisiana
Maine
Maryland
Massachusetts - https://mhd.ms2soft.com/tcds/tsearch.asp?loc=Mhd&mod=
Michigan - https://www.michigan.gov/mdot/0,4616,7-151-11151_11033-22141--,00.html
Minnesota
Mississippi
Missouri - https://www.modot.org/traffic-volume-maps
Montana
Nebraska
Nevada
New Hampshire
New Jersey - https://www.njtms.org/map/
New Mexico
New York - https://gis3.dot.ny.gov/html5viewer/?viewer=tdv
North Carolina - https://www.arcgis.com/home/item.html?id=b7a26d6d8abd419f8c27f58a607b25a1
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania -  https://www.arcgis.com/apps/webappviewer/index.html?id=32c041c6b12d4f54a454152ca37356c6
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah - https://data-uplan.opendata.arcgis.com/datasets/aadt-open-data?selectedAttribute=AADT2017
Vermont
Virginia - https://www.arcgis.com/home/item.html?id=bff29e1bc0fd4908b2c035fe67695088
Washington - https://www.wsdot.wa.gov/data/tools/geoportal/?config=traffic
West Virginia
Wisconsin - https://wisdot.maps.arcgis.com/apps/webappviewer/index.html?id=2e12a4f051de4ea9bc865ec6393731f8
Wyoming

Will continue to update as maps are added.

[Elm]

For Colorado, CDOT has a "Traffic Data Explorer"  here.

Traffic counts are also one of many layers in " Map View" , an ArcGIS page. There's more of that kind of data around OTIS, the umbrella site, but I think those are the main entry points for traffic counts.

[webny99]

So far for maps...
...Will continue to update as maps are added.

Thank you!
I actually just added the following table to the OP, so that will save you the trouble.
California and Iowa had been posted as well, and I just added Ohio and Minnesota, so we're at 20 total:

Alabama l Alaska l Arizona l Arkansas l California l Colorado l Connecticut l Delaware l Florida l Georgia l Hawaii l Idaho l Illinois l Indiana l Iowa l Kansas l Kentucky l Louisiana l Maine l Maryland l Massachusetts l Michigan l Minnesota l Mississippi l Missouri l Montana l Nebraska l Nevada l New Hampshire l New Jersey l New Mexico l New York l North Carolina l North Dakota l Ohio l Oklahoma l Oregon l Pennsylvania l Rhode Island l South Carolina l South Dakota l Tennessee l Texas l Utah l Vermont l Virginia l Washington l West Virginia l Wisconsin l Wyoming

[sprjus4]

California and Iowa had been posted as well, and I just added Ohio and Minnesota, so we're at 20 total:

I had skipped over those two since they weren't links directly to the maps, but since there's nothing better, it's the best links to post I suppose.

[sprjus4]

Texas - http://gis-txdot.opendata.arcgis.com/datasets/txdot-aadt-annuals

You have to zoom in close in order for the counters to appear. Then you can click on them and see the AADT for each year for that counter.

[pianocello]

California and Iowa had been posted as well, and I just added Ohio and Minnesota, so we're at 20 total:

I had skipped over those two since they weren't links directly to the maps, but since there's nothing better, it's the best links to post I suppose.

That one's on me. Use this link for Iowa instead; this goes directly to the DOT's interactive traffic map.

https://iowadot.maps.arcgis.com/apps/MapSeries/index.html?appid=0cce99afb78e4d3b9b24f8263717f910

[Great Lakes Roads]

Here's Indiana: https://indot.ms2soft.com/tcds/tsearch.asp?loc=Indot&mod=