To undertake the technology assessment, two critical factors need to be evaluated: maximum
commercial speed requirements of a train and the corresponding Federal Railroad Administration
(FRA) track class for any given rail system. This dictates critical elements of infrastructure need,
including track, signal and communications systems, and the equipment options available. This
report uses maximum commercial speeds to delineate the equipment and infrastructure choices
available in this corridor. The three speed ranges chosen for evaluation are as follows: