Photo by Jake Blucker on Unsplash
The only time of year that I’m actually happy about traffic is when we get updated traffic data for our reports. Below are 52 of my favorite sources of traffic data that you can use to visualize the AADT or annual average daily traffic that drives past your business (yay!) or past your home (boo!). Let’s start with a table of traffic count data sources from state departments of transportation — DOTs for short.
State DOT Traffic Counts Resources
| State DOT Name & Link | Most Current AADT/ADT Year in Interactive Map | Notes |
| Alabama DOT Traffic | 2018 AADT | Available as Shapefiles for download; Monthly Volume Report in PDF (latest: 2020) |
| Alaska DOT Traffic | 2018 AADT | |
| Arizona DOT Traffic | 2019 (some) AADT | |
| Arkansas DOT Traffic | 2018 ADT | Static maps by county here |
| California DOT Traffic | 2017 AADT | 2018 for state highways only. |
| Colorado DOT Traffic | 2018 AADT | Other source here |
| Connecticut DOT Traffic | 2018 ADT | Static maps here |
| Washington DC DOT Traffic | 2016 AADT | |
| Delaware DOT Traffic | 2018 AADT | Data in KMZ file |
| Florida DOT Traffic | 2018 AADT | Can download shapefile here |
| Georgia DOT Traffic | 2018 AADT | Other source here |
| Hawaii DOT Traffic | 2018 AADT | |
| Idaho DOT Traffic | 2018 AADT | |
| Illinois DOT Traffic | 2019 (some) ADT | Static traffic map here |
| Indiana DOT Traffic | 2019 AADT | Can download shapefiles here |
| Iowa DOT Traffic | 2017 AADT | Static maps here |
| Kansas DOT Traffic | 2019 AADT | Other map here |
| Kentucky DOT Traffic | 2018 (some) AADT | |
| Louisana DOT Traffic | 2019 (some) AADT | |
| Maine in ArcGIS | 2017 AADT | There’s no DOT official map. Report with a list of intersections & traffic counts here |
| Maryland DOT Traffic | 2018 AADT | Static map here |
| Massachusetts DOT Traffic | 2019 AADT | |
| Michigan DOT Traffic | 2018 AADT | |
| Minnesota DOT Traffic | 2018 AADT | Static maps & shapefile here |
| Mississippi DOT Traffic | 2018 ADT | |
| Missouri DOT Traffic | 2019 AADT | |
| Montana DOT Traffic | 2018 AADT | |
| Nebraska DOT Traffic | 2019 AADT | Other resource here |
| Nevada DOT Traffic | 2018 AADT | Static maps here |
| New Hampshire DOT Traffic | 2019 AADT | |
| New Jersey DOT Traffic | 2018 (some) AADT | Can download shapefile here |
| New Mexico MPO Traffic | 2017 ADT | Static maps here |
| New York DOT Traffic | 2016 ADT | Can download shapefile here |
| North Carolina DOT Traffic | 2018 AADT | Can download shapefile; Static map available |
| North Dakota DOT Traffic | 2019 (some) AADT | Static map here |
| Ohio DOT Traffic | 2019 AADT | |
| Oklahoma DOT Traffic | 2018 AADT | Can download shapefile here |
| Oregon DOT Traffic | 2018 AADT | |
| Pennsylvania DOT Traffic | 2018 AADT | Static maps here |
| Rhode Island DOT Traffic | 2016 AADT | |
| South Carolina DOT Traffic | 2019 AADT | |
| South Dakota DOT Traffic | 2019 ADT | |
| Tennessee DOT Traffic | 2018 AADT | |
| Texas DOT Traffic | 2018 AADT | |
| Utah DOT Traffic | 2016 AADT | Data in KMZ file |
| Vermont DOT Traffic | 2019 AADT | |
| Virginia DOT Traffic | 2018 ADT | |
| Washington DOT Traffic | 2018 AADT | |
| West Virginia DOT Traffic | 2017 (some) AADT | Other map here |
| Wisconsin DOT Traffic | 2019 (some) AADT | Static maps here |
| Wyoming DOT Traffic | 2018 AADT |
The DOT datasets above hit the data sleuthing jackpot in that they are free traffic count data sources as well as trustworthy and fairly current. If you have to have 2019 data, skip to the What traffic count data do we use in Cubit’s reports & maps? section below. It can be a bit of pain to incorporate DOT traffic data into your business documents, but it’s nothing that you can’t solve with a good GIS (mapping software) or worst-case scenario, a screen capture tool.
Need traffic counts for the entire US?
DOT traffic count data are by definition just for 1 state, but some projects require multi-state traffic counts. If you are already comfortable using a GIS or software with mapping capabilities, the Federal Highway Administration (FHWA) provides Highway Performance Monitoring System shapefiles for large roadways like interstates and freeways. The last time I checked on this data, the shapefiles contained 2017 AADT. I really like this FHWA data source, but what I hear from my clients is that there’s a huge learning curve to working with shapefiles. So if you aren’t already familiar with shapefiles, consider sticking with the state DOT resources in the table above or paying us at Cubit to build you a custom map with traffic data.
Don’t have time to learn about AADT, GIS, shapefiles, etc.?
I hear you! Sure, you could pull traffic data yourself. Or for $99, you can get a radius report with traffic data. In fact, our clients order more traffic data reports than any other radius report customization – it’s that popular! Since 2009, these same clients outsource these data pulling tasks and research to us at Cubit so they can focus on building their businesses.
What traffic count data do we use in Cubit’s reports & maps?
Unlike most of our demographic data that comes directly from government data sources, we use current (2019) traffic estimates from Kalibrate, a private data vendor, first because:
- Kalibrate sources their data from public & private data sources. This means that for certain areas, they have more traffic counts than public data sources alone.
- Kalibrate’s data are consistent across states. If you need a radius report in New York City where you want to see traffic counts for both New York and New Jersey, your traffic data will be consistent rather than using 2016 New York data versus 2017 New Jersey data.
Second, if the Kalibrate traffic data doesn’t have enough current traffic counts for a particularly rural area, then we double-check with either the Federal Highway Administration dataset or the state DOT datasets (above). So you get the best of both worlds – current data from a private data source supplemented by government data.
Got questions about traffic counts? Email me, because I’m here to help.