Specifications include, but are not limited to: The Link US Project will transform how regional rail operates in Southern California by converting Union Station from a stub-end to a run through station that will increase operational capacity to meet the future growth of the regional rail system, while accommodating a new future California High Speed Rail service. Metro expects to implement the Project in two phases, Phase A and Phase B. The CMSS Consultant Team shall be highly competent, highly specialized individuals with extensive experience and expertise to assist Metro manage the Link US Project by providing preconstruction and construction support services for Phase A and preconstruction services for Phase B. The CMSS Consultant will provide project management support services including services critical to control the design to budget, negotiate a construction contract with the Link US Construction Manager/General Contractor, and assist Metro in managing construction of Phase A to ensure completion within budget and on schedule.