By 2050, the population in the Northeast Corridor is expected to increase by 27 percent, reaching nearly 65 million people. The corridor has already outgrown its infrastructure, and this growth will strain it to the breaking point. We need to take action! To solve the critical transportation issues, we must employ a variety of options, including repair to existing systems and deployment of new technology. While there has been a significant press reaction to the idea of a Hyperloop ("Hyperloop will improve transportation and national security," July 31), it is at the concept stage and not a proven technology.