Branch Lines Like all freight railroad lines there may be a need for Branch Lines to move freight from the BorderTransportationSystem High-Speed rails to the slower rail systems that go into the towns, cities, industrial parks, etc.  The design of each will be on a location by location basis as needed. In some states like Arizona, California, and Texas there are plans to build short range High-Speed rail systems, and these should be connected to the BorderTransportationSystem at the time of its development, or at a minimum there should be consideration for these branch systems in the future. Index of ... ADOT narrows choices for Phoenix-Tucson rail California High-Speed Rail Houston to Dallas in less than 90 minutes New Mexico State Rail Plan 2014.pdf Tucson-to-Phoenix Passenger Rail