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| Type: | Resource | |
| Storage: | The size of this resource is 1.8 GB | |
| Created: | Apr 17, 2018 at 9:50 a.m. | |
| Last updated: | Nov 26, 2018 at 4:18 a.m.
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| DOI: | 10.4211/hs.106b38ab28b54f09a2c7a11b91269192 | |
| Citation: | See how to cite this resource | |
| Content types: | Geographic Feature Content |
| Sharing Status: | Published |
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| Views: | 2767 |
| Downloads: | 234 |
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Abstract
This resource contains statewide networks of roadways, railroads, bridges, and low water crossings, for Texas only.
Roadways detail: The Transportation Planning and Programming (TPP) Division of the Texas Department of Transportation (TxDOT) maintains a spatial dataset of roadway polylines for planning and asset inventory purposes, as well as for visualization and general mapping. M values are stored in the lines as DFOs (Distance From Origin), and provide the framework for managing roadway assets using linear referencing. This dataset covers the state of Texas and includes on-systems routes (those that TxDOT maintains), such as interstate highways, U.S. highways, state highways, and farm and ranch roads, as well as off-system routes, such as county roads and local streets. Date valid as of: 12/31/2014. Publish Date: 05/01/2015. Update Frequency: Quarterly.
Bridges detail: As with the roadways, both on-system and off-system bridges are maintained in separate datasets (54,844 total bridges, 36,007 on-system and 18,837 off-system). Bridges have numerous useful attributes, see coding guide [1] for documentation. One such attribute identifies structures that cross water: the second digit of Item 42 “Type of Service”. If the second digit is between 5 and 9 (inclusive) then the structure is over water. The bridges datasets are valid as of December 2016.
The roadways and bridges datasets contained here were obtained directly from TxDOT through personal correspondence. An alternate resource that is more open is the Texas Natural Resources Information System (TNRIS) [2]. The railroads and low-water crossings were obtained through TNRIS.
References
[1] TxDOT Bridges Coding Guide (download below)
[2] TNRIS data downloads [https://tnris.org/data-download/#!/statewide]
Subject Keywords
Coverage
Spatial
Content
README.md
Texas Basemap - Transportation Map Data
This resource contains statewide networks of roadways, railroads, bridges, and low water crossings, for Texas only.
Roadways detail
The Transportation Planning and Programming (TPP) Division of the Texas Department of Transportation (TxDOT) maintains a spatial dataset of roadway polylines for planning and asset inventory purposes, as well as for visualization and general mapping. M values are stored in the lines as DFOs (Distance From Origin), and provide the framework for managing roadway assets using linear referencing. This dataset covers the state of Texas and includes on-systems routes (those that TxDOT maintains), such as interstate highways, U.S. highways, state highways, and farm and ranch roads, as well as off-system routes, such as county roads and local streets. Date valid as of: 12/31/2014. Publish Date: 05/01/2015. Update Frequency: Quarterly.
Bridges detail
As with the roadways, both on-system and off-system bridges are maintained in separate datasets (54,844 total bridges, 36,007 on-system and 18,837 off-system). Bridges have numerous useful attributes, see coding guide [1] for documentation. One such attribute identifies structures that cross water: the second digit of Item 42 “Type of Service”. If the second digit is between 5 and 9 (inclusive) then the structure is over water. The bridges datasets are valid as of December 2016.
The roadways and bridges datasets contained here were obtained directly from TxDOT through personal correspondence. An alternate resource that is more open is the Texas Natural Resources Information System (TNRIS) [2]. The railroads and low-water crossings were obtained through TNRIS.
References
[1] TxDOT Bridges Coding Guide (download below)
[2] TNRIS data downloads [https://tnris.org/data-download/#!/statewide]
Data Services
Related Resources
| The content of this resource references | TNRIS data downloads [https://tnris.org/data-download/#!/statewide] |
| Title | Owners | Sharing Status | My Permission |
|---|---|---|---|
| Harvey Basemap Data Collections | David Arctur · Harvey datamgr | Published | Open Access |
| Texas Addresses Basemap Collection | David Arctur | Published | Open Access |
Credits
Funding Agencies
This resource was created using funding from the following sources:
| Agency Name | Award Title | Award Number |
|---|---|---|
| National Science Foundation (NSF) | RAPID: Archiving and Enabling Community Access to Data from Recent US Hurricanes | 1761673 |
Contributors
People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.
| Name | Organization | Address | Phone | Author Identifiers |
|---|---|---|---|---|
| Bridge Management Engineering Tom Yarbrough | Texas Department of Transportation (TXDOT) | Austin, TX | ||
| Transportation Planning and Programming Division Travis Scruggs | Texas Department of Transportation (TXDOT) | Austin, TX |
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