TxDOT Ramp AADT Traffic Counts (Public)

This is a public and downloadable traffic data product of statewide average annual daily traffic (AADT) counts on ramp type roadbeds. Annual average daily traffic is a measure of transportation system use that represents the typical traffic volume at a location. Standard traffic monitoring AADT calculation methods vary depending on traffic data collection equipment, data type, and frequency. The TxDOT AADT count data in this layer is calculated as 24 hour camera vehicle count x monthly adjustment factor. In a small number of cases, other methods may be used at TxDOT's discretion. TxDOT AADT Traffic Counts Data Dictionary - Overview Updated: Annually in July Source: Statewide Traffic Analysis and Reporting System II (STARS II) Security Level: Public