Traffic Census Program
Traffic Counts (a.k.a. Traffic Volumes) are for the State Highway System only (in various formats).
Highways are signed as Interstate, California State Route, or United States Route. See examples below:
Traffic count information for city and county streets may be found at the city Traffic Engineering or Public Works Department, or the Community Development Office in the area where the street is located.
Caltrans Traffic Counts are summarized annually into four categories:
Traffic Volumes: Annual Average Daily Traffic (AADT) All files are .XLSX |
||||
2020-AADT | 2019-AADT | 2018-AADT | 2017-AADT | 2016-AADT |
2015-AADT | 2014-AADT | 2013-AADT |
by Webpage: 2017
Truck Traffic: Annual Average Daily Truck Traffic
For truck traffic on California State Highways All files are .XLSX |
||||
2020-AADT Truck | 2019-AADT Truck | 2018-AADT Truck | 2017-AADT Truck | 2016-AADT Truck |
2015-AADT Truck | 2014-AADT Truck | 2013-AADT Truck |
Ramp Volumes
For ramp volumes on California State Freeways, by Caltrans District 2020-2017 files are .XLSX and 2016 files are .PDF |
|||||
District 1 | District 2 | District 3 | District 4 | District 5 | District 6 |
2020-D1 | 2020-D2 | 2020-D3 | 2020-D4 | 2020-D5 | 2020-D6 |
2019-D1 | 2019-D2 | 2019-D3 | 2019-D4 | 2019-D5 | 2019-D6 |
2018-D1 | 2018-D2 | 2018-D3 | 2018-D4 | 2018-D5 | 2018-D6 |
2017-D1 | 2017-D2 | 2017-D3 | 2017-D4 | 2017-D5 | 2017-D6 |
2016-D1 | 2016-D2 | 2016-D3 | 2016-D4 | 2016-D5 | 2016-D6 |
District 7 | District 8 | District 9 | District 10 | District 11 | District 12 |
2020-D7 | 2020-D8 | 2020-D9 | 2020-D10 | 2020-D11 | 2020-D12 |
2019-D7 | 2019-D8 | 2019-D9 | 2019-D10 | 2019-D11 | 2019-D12 |
2018-D7 | 2018-D8 | 2018-D9 | 2018-D10 | 2018-D11 | 2018-D12 |
2017-D7 | 2017-D8 | 2017-D9 | 2017-D10 | 2017-D11 | 2017-D12 |
2016-D7 | 2016-D8 | 2016-D9 | 2016-D10 | 2016-D11 | 2016-D12 |
Peak Hour Volume Data Hourly volume relationships and traffic monitoring sites on the State Highway System. All files are .XLSX |
||||
2020 | 2019 | 2018 |
2017 | 2016 |
2015 | 2014 |
For questions regarding AADT reports, Ramp Volumes, or the Peak Hour Volume Data Reports above, please contact Hasib Mohabbat.
For AADT GIS data, visit the Caltrans GIS Data webpage.