This is a public and downloadable traffic data product of statewide average annual daily traffic (AADT) counts. 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 volume x Axle Correction Factor x Monthly Adjustment Factor, or by traffic monitoring ramp balancing procedures. 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 JulySource: Statewide Traffic Analysis and Reporting System IISecurity Level: Public

This is a public and downloadable traffic data product which includes a subset of statewide average annual daily traffic (AADT) counts that are reported to the TxDOT Roadway Inventory. 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 volume x Axle Correction Factor x Monthly Adjustment Factor, or by traffic monitoring ramp balancing procedures. In a small number of cases, other methods may be used at TxDOT's discretion.Updated: Annually in JulySource: Statewide Traffic Analysis and Reporting System II (STARS II)Security Level: Public

This is a public and downloadable traffic data product of statewide average annual daily traffic (AADT) counts. 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 volume pneumatic tube count x Axle Correction Factor 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 JulySource: Statewide Traffic Analysis and Reporting System IISecurity Level: Public

User guide for the ArcGIS Online Statewide Traffic Count AppThe guide covers essential aspects, including:Map Functions Overview: This section details the basic interactive functions of the map, including zooming, panning, and identifying features. It will explain how to navigate the map interface effectively, find specific locations, and understand the map's overall layout and controls. Turn Layers On and Off: This portion of the guide will teach users how to control the visibility of different data layers within the map. Users will learn how to toggle layers on and off to customize the map display, focusing on specific traffic count data or related information. This allows for a more focused analysis of the data. Attribute Table and Export Data: This section explains how to access and utilize the attribute table associated with the traffic count data. Users will learn how to view detailed information about each traffic count location, including specific count values, dates, and other relevant attributes. Furthermore, this section will instruct how to export the attribute table data into formats like CSV or Excel for further analysis outside of the online application. Downloading Data: This portion of the guide will explain how to download the traffic count data. It will explain what file types are available for download, and any restrictions that are placed on the data.

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 JulySource: Statewide Traffic Analysis and Reporting System II (STARS II)Security Level: Public

The traffic stations at these locations collect short-term traffic count data to produce Annual Average Daily Traffic (AADT). This point layer contains combined traffic counts from mainlanes and frontage roads at one station displayed on the centerline of the roadway for the State of Texas. The data is created and maintained by the Transportation Planning and Programming (TPP) Division’s Traffic section at TxDOT. Traffic counts are collected on an annual basis as a means of measuring the use of public roads in the state. AADTs are calculated using a volume count, axle factor, and seasonal factor. A general overview of the equation is AADT = axles * axle factor * seasonal factor. The data is sourced from the Statewide Traffic Analysis and Reporting System (STARS II).

This is a public and downloadable traffic data product of statewide average annual daily traffic (AADT) counts. 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 volume pneumatic tube count x Axle Correction Factor x Monthly Adjustment Factor. In a small number of cases, other methods may be used at TxDOT's discretion.Updated: Annually in JulySource: Statewide Traffic Analysis and Reporting System IISecurity Level: Public

This is a public and downloadable traffic data product of statewide average annual daily traffic (AADT) counts. 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 volume pneumatic tube count x Axle Correction Factor x Monthly Adjustment Factor. In a small number of cases, other methods may be used at TxDOT's discretion.Updated: Annually in JulySource: Statewide Traffic Analysis and Reporting System IISecurity Level: Public

This is a public and downloadable traffic data product of statewide average annual daily traffic (AADT) counts. 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 volume pneumatic tube count x Axle Correction Factor x Monthly Adjustment Factor. In a small number of cases, other methods may be used at TxDOT's discretion.Updated: Annually in JulySource: Statewide Traffic Analysis and Reporting System IISecurity Level: Public

Short term traffic counts conducted under the TxDOT Transportation Planning and Programming Division Statewide Traffic Monitoring Program. This spatial data includes 24-hour AADT (Annual Average Daily Traffic) which is collected once every 5 years on roads which are not state maintained, such as county roads and city streets.Data files were previously called “Urban ACR” traffic counts.

Permanent count stations refer to traffic counters that operate and collect traffic data continuously, 24 hours a day, 365 days a year. Permanent traffic counters produce Annual Average Daily Traffic (AADT), and some locations may also collect classification and/or weight data. The permanent traffic counting machines and data are maintained by TxDOT TPP Traffic Section. Update Schedule: As NeededSecurity Level: Public

This data and application were developed to show statewide annual average daily traffic (AADT) increases and decreases over time using continuous traffic count data. The map featured in this application shows years leading up to the COVID 19 pandemic in 2020, through the latest currently available data year.Update Frequency: AnnualSecurity Level: Public

traffic counts

The TXDOT saturation counts show average daily traffic (ADT) counts on TxDOT-maintained roads, county roads and city streets over a 24 hour period.Learn more about TXDOT's annual average daily traffic (AADT) counts: TXDOT Traffic Counts.

This feature service contains reference and location information for TxDOT's statewide traffic count stations. This layer does not contain traffic count data.Revision 3/4/2024: Feature Layer is updated to show only master station records. Directional stations are no longer visible.Updated: DailySecurity Level: Public

The TxDOT Roadway Inventory is a statewide dataset of attribute data routed to TxDOT's roadway network linework using linear referencing. Roadways are dynamically segmented whenever a single attribute changes, resulting in a highly segmented network that can be queried and filtered for specific attribute values. Attributes such as functional system, traffic counts, surface type, speed limits and many more are contained within. This layer is published annually based on end-of-year data that is reported to the Federal Highway Administration. This layer is highly segmented and thus in a different format than most of our regularly published datasets, which are segmented based on a single attribute. The TxDOT Roadway Inventory layer can also be found on txdot.gov and TxDOT’s Open Data Portal. This product is created annually by the Transportation Planning and Programming Division at TxDOT in the Data Analysis, Mapping and Reporting Branch for internal and public use. Last Revision: 08/27/2025Roadway Inventory Specifications 2024 AGO OverviewTxDOT Roadway Inventory Specifications 2024 PDF link in AGO Update Frequency: 1 YearsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/04/24]Update Frequency: 1 YearsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/08/27]

Traffic analytics, rankings, and competitive metrics for txdot.gov as of February 2026

Annual average daily traffic. This data is an extract from the Geospatial Roadway Inventory Database (GRID), which is TxDOT's system for managing roadway assets in Texas. Note: Extracts from GRID are made on a regular basis and reflect the state of the data at that moment. Assets on routes that are in the process of being edited may be affected. Updated: AnnuallySource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicUpdate Frequency: 1 YearsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/04/23]

The TxDOT RoadwayInventory 2016 layer is a statewide dataset that has attribute information routedto TxDOT Roadway linework. By using linear referencing tools, attributeinformation from the TxDOT Roadway Inventory table are located on the linework.Roadway attributes such as functional system, traffic counts, surface types amongmany others can be found on a roadway simply by selecting it or performing aquery. The TxDOT Roadway Inventory layer can also be found on www.TxDOT.govand TxDOT’s Open Portal. This product is created annually by the TransportationPlanning and Programming Division at TxDOT in the Data Analysis, Mapping andReporting Branch for internal and public use.Updated: AnnuallySource: GeospatialRoadway Inventory Database (GRID)Security Level: PublicTxDOT Roadway Inventory Specifications 2016 PDF link in AGOUpdate Frequency: NeverSource: Transportation Planning and Programming Division (TPP) | Data ManagementSecurity Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/02/24]

The TxDOT Roadway_Linework_wAssets feature class is a statewide dataset that has attribute information routed to TxDOT Roadway linework. By using linear referencing tools, attribute information from the TxDOT Roadway Inventory table are located on the linework. Roadway attributes such as functional system, traffic counts, surface types among many others can be found on a roadway simply by selecting it or performing a query. The TxDOT Roadway Inventory layer can also be found on TxDOT’s Open Data Portal. This product is created annually by the Transportation Planning and Programming Division at TxDOT in the Data Analysis, Mapping and Reporting Branch for internal and public use.To create a line event (route), use ROUTE_ID from TxDOT Roadway Linework as the Route Identifier. Then, use the TxDOT Roadway Inventory table: RIA_RTE_ID as the Route Identifier, FRM_DFO and TO_DFO as the measure fields.Updated: AnnuallySource: Geospatial Roadway Inventory Database (GRID)