The Trunk System is a network of rural divided highways that complements and includes elements of the Interstate Highway System. The minimal design criteria for this network specify that each highway should be at least a four-lane divided facility. That includes routes which are not yet made of four lanes, but ideally will be. The Trunk System will serve as a principal connector for all Texas cities with over 20,000 population as well as major ports and points of entry. The total mileage of the Trunk System, as stated in TxDOT Minute Order 910209, is limited to 11,500 miles. Update Frequency: 1 YearsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: FalseRelated LinksData Dictionary PDF [Generated 2025/03/26]

The Transportation Planning and ProgrammingDivision (TPP) of the Texas Department of Transportation (TxDOT) created thispolygon layer for planning, analysis, and mapping purposes. Area EngineerOffices are the first administrative subdivision under TxDOT Districts. Eachdistrict is divided into several area offices, which are generally made up ofseveral counties. Each area office, in turn, is divided into severalMaintenance Sections.Update Frequency: As NeededSource: Transportation Planning and Programming Division (TPP) | Data ManagementSecurity Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/03/17]

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

After each decennial census, the US Census Bureau develops Urban Areas that consist of a central core and adjacent densely settled territory that together contain at least 2,500 residents. For transportation planning purposes, however, only areas with a population of 5,000 are considered urban. These areas of over 5,000 population are then adjusted outwardly to capture additional areas and minimize situations where a given roadway goes into and out of the original census area. (see https://www.fhwa.dot.gov/planning%20/processes/statewide/related/highway_functional_classifications/section06.cfm)Areas with a population of between 5,000 and 49,999 are called Small Urban Areas. These areas are assigned a unique number that must be between 600 and 999. In 2020, there are 153 such areas in Texas. Areas with a population of between 50,000 and 199,999 are called Urbanized Areas and are assigned a unique number less than 600. In 2020, there are 20 such areas. Areas with a population of of 200,000 or more are called Large Urbanized Areas and are assigned a unique number less than 600. In 2020, there are 16 such areas. All Urbanized Areas and Large Urbanized Areas require a Metropolitan Planning Organization (MPO) to shepherd the transportation planning process. MPOs that cover Large Urbanized Areas are considered Transportation Management Areas. Update Frequency: As NeededSource: Federal Highway Administration (FHWA)Security Level: PublicOwned by TxDOT: FalseRelated LinksData Dictionary PDF [Generated 2025/03/17]

Functional classification is a federally-mandated categorization of roadways based on the level of traffic service and degree of access they provide. Updates to functional classifications are evaluated collaboratively by TPP, TxDOT districts, Metropolitan Planning Organizations and Federal Highway Administration (FHWA) staff and can occur on an as-needed basis as roadways are constructed and/or expanded. Technical corrections may also be made on an as needed basis as the GIS representation of our roadways is altered to reflect current conditions on the ground. As such, this layer is updated monthly to reflect the latest data from our Geospatial Roadway Inventory Database (GRID).Update Frequency: 1 MonthsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/05/21]

This table contains aggregated bridge condition data for each fiscal year beginning in FY2015. The major structures having openings of 20 feet or greater are inspected every other year by Texas Department of Transportation (TxDOT). Inspection of the smaller minor structures is not mandated by the Federal government and is managed entirely by the City.

View more details and insights related to this data set on the story page: https://data.austintexas.gov/stories/s/ajuu-uvjm.

Splitgraph serves as an HTTP API that lets you run SQL queries directly on this data to power Web applications. For example:

See the Splitgraph documentation for more information.

This dataset contains traffic crash records for crashes which have occurred in Austin, TX in the last ten years. It is one of two datasets which power our Vision Zero Viewer dashboard, available here: https://visionzero.austin.gov/viewer.

Crash data may take several weeks to be submitted, reviewed, and finalized for inclusion in this dataset. To provide the most accurate information as possible, we only provide crash data as recent as two weeks old. Please also note that some crash records may take even longer to appear in this dataset, depending on the circumstances of the crash and the ensuing law enforcement investigation.

Crash data is obtained from the Texas Department of Transportation (TxDOT) Crash Record Information System (CRIS) database, which is populated by reports submitted by Texas Peace Officers throughout the state, including Austin Police Department (APD).

The data and information on this website is for informational purposes only. While we seek to provide accurate information, please note that errors may be present and information presented may not be complete.

Splitgraph serves as an HTTP API that lets you run SQL queries directly on this data to power Web applications. For example:

See the Splitgraph documentation for more information.

The original dataset was created by Aviation Division and modify by the Transportation Planning and Programming Division of TxDOT in the Data Analysis, Mapping and Reporting Branch for planning and asset inventory purposes, as well as for visualization, county map book, and general mapping. This dataset contains information about airport name, ownership, county, district, and the Federal Aviation Administration (FAA) facility numbers.Update Frequency: As NeededSource: Federal Aviation Administration (FAA)Security Level: PublicOwned by TxDOT: FalseRelated LinksData Dictionary PDF [Generated 2025/03/14]

This dataset was created by TxDOT for internal purposes. TxDOT is not the authority for county boundary data for the state. These features were digitized by TxDOT from georeferenced USGS topo maps to enable the classification of roadway attributes for the purposes of satisfying federal and state reporting requirements, and to serve as a base layer for TxDOT's cartographic products. This version utilizes a detailed boundary along the Texas coast for depicting a realistic coastline. Use at your own risk. Update Frequency: Infrequently, mostly staticSource: USGS quad mapsSecurity Level: PublicOwned by TxDOT: FalseRelated LinksData Dictionary PDF [Generated 2025/03/14]