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The MacArthur Maze (or simply the Maze, also called the Distribution Structure) is a large freeway interchange near the east end of the San Francisco–Oakland Bay Bridge in Oakland, California. It splits Bay Bridge traffic into three freeways—the Eastshore (I-80/I-580), MacArthur (I-580) and Nimitz (I-880). ==Description== San Francisco Bay Area traffic funnels across the few bridges spanning the bay, so the Maze's central location near the east end of the San Francisco–Oakland Bay Bridge makes it a hub for east–west and north–south traffic accessing San Francisco. It is also next to the Port of Oakland, the fourth busiest container port in the United States.〔(Port of Oakland Website )〕 The four freeways intersecting at this interchange are: * The Bay Bridge - Interstate 80 from the Maze heads west across the Bay Bridge into San Francisco, where it joins U.S. 101. * The Eastshore Freeway - The Interstate 80/Interstate 580 concurrency from the Maze heads north through Berkeley and western Contra Costa County. Just north of the Berkeley-Albany border, approximately north of the Maze, the concurrency splits. Interstate 80 heads northeast towards Sacramento. Interstate 580 heads northwest towards the Richmond-San Rafael Bridge and eventually to Marin County, where it joins U.S. 101. * The MacArthur Freeway - Interstate 580 from the Maze heads southeast through Oakland. A mile southeast is an interchange with State Route 24/Interstate 980, a corridor for commuters from Contra Costa County. I-580 continues southeast along the foot of the hills (and nearly atop the trace of the Hayward Fault) to Castro Valley. I- 580 then turns east and continues through the Livermore Valley, over Altamont Pass, and ending up near Tracy where it terminates at Interstate 5. * The Nimitz Freeway - Interstate 880 from the Maze heads south and southeast through Oakland along the Oakland Estuary, past the Oakland International Airport, and O.co Coliseum, then through southern Alameda County to San Jose where it turns into Highway 17 to Santa Cruz. Local traffic using the interchange includes East Bay commuters to and from San Francisco via the Bay Bridge, as well as drivers traveling up and down the East Bay. For long distance traffic accessing other parts of the country, I-80 is the primary Interstate Highway for points east. Although Interstate 5, the main north–south Interstate Highway on the West Coast of the United States, bypasses the Bay Area to the east, connections are provided to the Maze via I-505 and I-80 from the north, and I-580 to the south. Furthermore, drivers on US 101 who want to bypass San Francisco can use I-880 from San Jose to the Maze, and then I-580 across the Richmond-San Rafael Bridge. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「MacArthur Maze」の詳細全文を読む スポンサード リンク
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