Know how traffic uses your roads.
Radar counters at each site record volumes, speeds, vehicle lengths and the gaps between vehicles. Counts often run as part of a speed zone study, or stand alone for planning.
Why agencies order it
Volumes and speeds feed speed zone studies and planning decisions, and give you current ADT and AADT for your road inventory.
What we do
- Agree the sites, directions, collection periods and vehicle categories with your agency.
- Place radar counters and collect the data.
- Summarize traffic by interval, direction and vehicle length.
What you receive
- Volume summaries, speed distributions and vehicle-length classes for each site.
- ADT and AADT estimates, with the method stated.
- Site locations with imagery, and tabular and GIS exports.
Recent work
- Radar counts for 77 speed zone studies in 2023 and 2024. Speed Zone Studies ↗
Want to know how the data behind this study is checked? How we check our work ↗