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- Introduction Two other regional systems have been designated in the Tri-Valley. These are described briefly below. Congestion Management Program (CMP) Routes These have been designated by Contra Costa County and A]sameda County as part of the state-mandated CMP. In the Tri-Valley, they include only 1-680, 1-580, and Route 84. The respective county CMFs are shorter-range p]~nnlng docnments than the Tri-Valley Transportation Plan. Metropolitan rranspofiation System (MTS) and Alafional Sighway System (AIHS) Routes The Metropolitan Trenspertation Commission (MTC) defined a system, called the Metropolitan Transportation System, in the 1991 Regional Transportation Plan, and the system has been updated for the 1994 RTP. The purpose of the MTS is to define those facilities and services that are crucial to freight and passenger mobility in the Bay Area. The MTS includes streets and highways, transit systems, seaports, airports, truck I_ terminals, rail yards, and transfer points. In addition to streets and highways, the MTS in the Tri-Valley includes transit corridors along 1-680, 1-580, and Route 84; the Altamont Pass railroad tracks, which continue to Fremont; and the Livermore airport. The criteria for defining streets and highways in the MTS are as follows: -- · Serves a major Bay Area activity center * ~Provides important intercounty and/or interregional connections · Serves as a reliever for a freeway · Provides important connections in the MTS system · Serves as a major cross-town arterial for relieving congestion -- · Provides access to regional passenger and freight transfer facilities. Significance of MTS Designation. Roads that are part of the MTS may benefit from -- funding available to regional facilities.' Any road not in the MTS is considered as serving primarily local travel. -- The National Highway System (NHS). The Intermodal Surface Transportation Efficiency Act (ISTEA) calls for the U.S. Congress to designate a National Highway System by December 1995. For the Bay Area, MTC has developed a recommended NHS, which is a - subset of the MTS. The purpose of the NHS is to provide an interconnected system of principal arterial routes which will serve major population centers, international border crossings, ports, airports, public transportation facilities, and other intermodal tranaporta- __ tion facilities and other major travel destinations, meet national defense requirements, and serve interstate and interregional travel. The NHS was proposed to focus federal funds to improve a limited n,mber of high priority routes. ' Barton-Aschman Associates, Inc. 7