Traffic data collection
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Traffic data collection

To collect accurate and continuous traffic data, TxDOT maintains a network of over 350 permanent count sites along various roadway segments throughout the state. The data collected are used to measure the distribution and variation of traffic patterns at a particular roadway segment. 

This data then provides a general description of the roadway segment characteristics, which can then be applied to any similar roadway segment throughout the state. The data collected at each of the permanent count sites provides FHWA and TxDOT with current and past performance, which helps establish future needs and improvements of the various roadway segments in Texas.

Standard sheets

Traffic data collection sheets are for use in major pavement construction projects in truck corridors and construction or maintenance projects impacting existing traffic data collection sites or for new site installations.

Weigh-in-motion (WIM) TDC-1-10072022 TDC-1-10072022
Vehicle classification (VC) TDC-2-10072022 TDC-2-10072022
Traffic data collection (TDC) loop details TDC-3-10072022 TDC-3-10072022


TxDOT Permanent Data Collection Sites (Tableau)

Information related to the operational status of TxDOT’s permanent data collection sites. Users can filter by District, collection method, status, and highway systems.
TxDOT Permanent Traffic Data Collection Sites - Dashboard

Statewide Planning Map

The Statewide Planning Map displays data in support of planning operations at TxDOT. Information related to TxDOT’s Permanent Data Collection Sites can be found under ‘Permanent Count Stations.’ In addition, projects that might impact a Permanent Data Collection Site can be selected based on the following: Construction underway or begins soon, Construction begins within 4 years, and Construction begins in 5 to 10 years.
Statewide Planning Map


The Statewide Traffic Analysis and Reporting System (STARS II) is a data analysis and reporting database with detailed traffic data and statistics.
Statewide Traffic Analysis and Reporting System (STARS II)

Traffic Monitoring Guide

The Traffic Monitoring Guide provides guidance, methodology, and approaches for state highway agencies to collect, analyze, report traffic data, and manage their traffic monitoring programs. 
Website: Traffic Monitoring Guide (TMG) | FHWA

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