With high-speed rail in the United States long on plans and short on construction, a Texas company is aiming to fast-track service between Dallas and Houston.

The Texas Central Railway Co. plans to use private investment and Central Japan Railway bullet train technology to run a line between two of the largest U.S. cities. Company officials say service could begin in 2021.

"If we can't do it in Texas, I don't know where in the United States you could do it," said Richard Lawless, chairman and chief executive officer of Texas Central Railway, a private company set up about four years ago to build a high-speed rail link.