Frequently Asked Questions
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Frequently Asked Questions

Below are some common questions about the study.

The Texas Department of Transportation (TxDOT), along with Oklahoma DOT, is studying passenger rail from Oklahoma City to south Texas because of continued congestion along the IH-35 corridor and because estimates show continuing population growth. With limited funding available for highway improvements and increasing demands on the transportation network, TxDOT is looking into other ways to move people through the region. You can read more about the congestion and population growth projections.

This passenger rail study team is gathering data and looking at the potential opportunity for intercity rail, then recommending options to the Federal Railroad Administration (FRA) for future action. No new rail facilities will be constructed as part of the study.

In 2010, the Texas Transportation Institute (TTI) completed a general study of potential intercity rail service in Texas to consider the demand for rail ridership and the feasibility of an intercity passenger rail system. This 2010 study identified the IH-35 corridor as a potential area for further study because of its high level of congestion and population growth. However, the TTI study did not provide an in-depth evaluation of the corridor.

This study will provide additional analysis, focusing on a detailed review of the IH-35 corridor from central Oklahoma to south Texas. This study includes a service level environmental impact statement (EIS) will provide information about the costs, benefits and impacts of potential intercity passenger rail improvements.

A service level EIS explains the impacts, benefits, and costs of each study alternative and compares each to a "no-build" alternative (what the corridor would look like without rail service). This document covers a wide range of topics, including the natural environment (such as fish and wildlife habitat, wetlands, and water quality) and community resources (such as economic development, land use, and historic properties). A draft EIS will be prepared and made available for public review to allow the public to provide comments that will be addressed in the final EIS.

This service level EIS is an early step in the process of determining what, if any, passenger rail improvements make sense in the corridor. It will not identify detailed routes or station locations for the passenger rail alternatives.

The federal government has provided most of the funding for the service level draft EIS. The study is funded by the following:

  • $5.6 million from a High-Speed and Intercity Passenger Rail grant from FRA
  • $2.8 million from Texas general revenue
  • Federal Highway Administration Statewide Planning and Research funds
  • In-kind services to be delivered by TxDOT study partners: Oklahoma DOT and North Central Texas Council of Governments

This service level EIS will not outline how construction would be paid for (or even if anything will be built). Since there is limited funding from the federal government for passenger rail projects, it is possible that the project could be built by the private sector.

It is hard to compare the two studies because there are major differences between the two. The California High-Speed Train Project, unlike the Texas-Oklahoma Passenger Rail Study:

  • Examined every detail related to constructing passenger rail, including station placement and mitigating negative impacts to the environment or communities along the route.
  • Included more bridges and tunnels due to more hills and valleys in the area.
  • Included more grade separations per mile (building bridges or underpasses so that the train does not intersect with roadways).
  • Includes plans to incorporate high speed rail into historic stations and connect with new multimodal terminals (connecting to buses, planes, etc.).
  • Is designed for a statewide rail system resulting in fewer chances to use existing rail or highway corridors and requiring more properties purchased for new rail alignments.

TxDOT expects to complete the Texas-Oklahoma Passenger Rail Study within the next year. This study will only determine if passenger rail improvements between Oklahoma City and south Texas is feasible. The study will include information that may be used for future projects. As a result, TxDOT does not have a schedule for constructing intercity passenger rail in the corridor.

TxDOT expects to publish the service level draft EIS by mid-2016. The public and government agencies will be able to review and comment on the findings during an official comment period which will include at least one public hearing. After the public review period is complete, TxDOT and FRA will agree on a preferred alternative (or a package of preferred alternatives for different sections of the corridor) for passenger rail service in the corridor which will be documented in the final EIS.

There are several steps involved with selecting one or more "preferred alternatives." In April 2013, the study team completed "scoping" to find out the concerns and interests of the community. The team used the scoping comments to create a large list of possible routes and types of service. The team evaluated these options to determine which could be feasible.

The project team took this smaller set of alternatives to the public January and February 2014 for public review. After reviewing that input, TxDOT determined which alternatives should be studied in the service level draft EIS. When the service level draft EIS is complete, the public will be invited to review it. Once the review is complete, TxDOT and FRA will determine preferred alternatives to be carried forward for more detailed study in the future.

The alternatives (available at that will be evaluated in the service level EIS will be general and will not study impacts to specific properties. Future studies (that would begin after this study is completed) will identify specific alignments for the alternatives and examine property impacts.

The "Alternative Study Report" describes the broad range of alternatives initially considered, and the alternatives that are being carried forward for analyses in the service level EIS (available at

The service level EIS will not examine specific station locations. However, the study identifies cities that have enough population to potentially justify a station. Stations in these cities will be studied in the service level EIS:

  • Ardmore, Oklahoma
  • Edmond, Oklahoma
  • Norman, Oklahoma
  • Oklahoma City, Oklahoma
  • Pauls Valley, Oklahoma
  • Alice, Texas
  • Austin, Texas
  • Brownsville, Texas
  • Corpus Christi, Texas
  • Dallas, Texas
  • Fort Worth, Texas
  • Gainesville, Texas
  • Harlingen, Texas
  • Killeen, Texas
  • Kingsville, Texas
  • Laredo, Texas
  • McAllen, Texas
  • Raymondville, Texas
  • San Antonio, Texas
  • San Marcos, Texas
  • Schertz, Texas
  • Seguin, Texas
  • Taylor, Texas
  • Temple, Texas
  • Waco, Texas
  • Waxahachie, Texas
  • Weslaco, Texas

Elevated rail lines over existing highways was one design option considered as an early step to identifying potential route alternatives. However, existing highways include curves, profiles, and interchanges that are not compatible with the proposed passenger rail systems (look for the "Alternative Study Report" on the Meeting Materials page at of these compatibility issues, TxDOT eliminated this option from further study.

A separate study, expected to begin soon, is looking at passenger rail between Houston and Dallas. Once that study begins, more information will be available on the TxDOT projects.

Early in the study, interest was expressed about about the possibility of coordinating with the Mexican government to provide passenger rail service between the two countries. Two route alternatives S4 (to McAllen, Texas) and S6 (near Laredo, Texas) were identified as possible options to extend to Monterrey, Mexico. In order to evaluate these options, additional funding would be needed. Efforts were made for funding; however, those efforts were unsuccessful so no additional work on a connection to Mexico was done.

TxDOT is considering several options for passenger rail service. One option is to provide service at roughly current railroad speeds; this option would require the least amount of upgrade to existing rail lines and could include additional service. Depending on the railroad lines selected and specific locations, the maximum speeds of "conventional" service level alternatives would be between 70 and 90 miles per hour (mph). Some improvements to the existing rail network would be required for capacity or speed.

The second option is a "higher speed" service level, which would include new tracks in existing freight rail rights-of-way. Alternatives at this service level would be designed to operate at maximum speeds of 110 to 125 mph.

Finally, TxDOT is considering a true "high-speed" service level, which would require building all new rail lines because existing freight lines would not be able to share right-of-way with high-speed passenger rail. The maximum speed of high-speed passenger rail would be between 165 and 220 mph.

The current train operators are involved with this study and do not expect existing freight and passenger service to be interrupted. The operators have provided information to TxDOT so that future passenger rail service could be coordinated with existing trains.

Upon completion of this study, TxDOT and FRA will evaluate the opportunity to move forward with the Texas-Oklahoma Passenger Rail program, including further development of preferred routes and service level options. There are a number of qualified rail operators in the United States; however, the selection decision would come at a much later point in the process.