This Rail Feasibility Analysis Summary Report documents the technical analysis conducted by the Florida Department of Transportation (FDOT) to evaluate the feasibility of enhanced or new intercity passenger rail service between Tampa Bay and Northeast Florida. Based on recommendations resulting from the I-75 Relief Task Force, the North I-75 Master Plan Study (August 2017) was initiated to evaluate I-75 and parallel corridors as a system and determine their ability to accommodate the future congestion. To supplement that effort, this rail feasibility analysis was initiated to consider the need for enhanced passenger rail and to evaluate the feasibility of this alternative mode to address future regional travel demand within the study area. Consistent with the North I-75 Master Plan Study, this evaluation considers interregional transportation needs through the year 2040 planning horizon.