Before a project is built, a study must be done to determine if it will fill a transportation need, will not negatively impact the surrounding area and fits the department's overall plan. During the study phase, potential projects are analyzed to determine if they are cost effective, while also efficiently improving mobility. Some of these projects have moved beyond the study phase and are under construction.
Highway Projects
| Location | Project | Description |
| East Texas | I-20 East Texas Corridor | Evaluation of current safety and capacity needs from Dallas to the Louisiana border |
| East Texas | I-30 East Texas Corridor | Studies needs in northeast Texas along I-30 from FM 2642 to the Texas/Arkansas state line |
| South Texas | Texas-Mexico Border Crossings | Examines options to relieve congestion at Texas-Mexico border crossings |
| South Texas | I-10 Corridor Study | Evaluation of proposed improvements along I-10 from Loop 1604 in San Antonio to SH 130 east of Seguin |
| South Texas | I-37 Corridor |
Evaluation of I-37 from I-410 in San Antonio to I-69E in Corpus Christi to develop improvement programs |
| Statewide | US 190 and I-10 | Evaluates options for a corridor from Louisiana to El Paso |
| West Texas | Ports-to-Plains Corridor | Examines transportation options from Laredo to Amarillo |
Rail Projects
| Location | Project | Description |
| Statewide | Texas Rail Plan 2019 Update | TxDOT is updating the Texas Rail Plan to reflect the latest rail project priorities and fulfil eligibility requirements for federal funding of rail projects. |
| Houston-Beaumont | Houston-Beaumont Freight Rail Study | TxDOT is conducting a comprehensive analysis of the freight rail network in the Houston and Beaumont regions to identify mutually beneficial mobility improvements. |
| North Central Texas | Metroplex Freight Mobility Study | TxDOT is conducting an analysis of the freight and passenger rail transportation network to identify mutually beneficial mobility improvements. |
| Statewide | Dallas-Houston High-Speed Rail | Proposed high-speed rail between the Dallas and Houston areas. |
Border Projects
| Location | Project | Description |
| Statewide | Texas-Mexico Border Transportation Master Plan | TxDOT, in collaboration and partnership with the Border Trade Advisory Committee, is working with U.S. and Mexican agencies and stakeholders to develop the Border Transportation Master Plan. |
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