Specifications include, but are not limited to: The Maryland Department of Transportation/Maryland Transit Administration (MDOT/MTA) is issuing this RFI about a forthcoming project to replace the existing LRV fleet and to replace and modernize the existing train control system on MDOT/MTA’s Light RailLink in Baltimore, Maryland. The Light RailLink system consists of a main north–south line on which 28 of the system's 33 stops are located. There are two branches on the southern end to BWI Airport and Glen Burnie that have two stations each and one spur in Baltimore City for Penn Station that can only be entered heading north and exited heading south. There are single-track sections north of Timonium, where headways are currently operating to 15 minutes. System Map and Station Distances included (Appendix 1 & Appendix 2).