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Route 110, consisting of State Route 110 (SR 110) and Interstate 110 (I-110), locally referred to as ''the one ten'', is a state highway in the Los Angeles area of the U.S. state of California, built to freeway standards. The entire length of I-110 (which ends at I-10), as well as SR 110 south of the Four Level Interchange with US 101, is the Harbor Freeway, and SR 110 north from US 101 to Pasadena is the historic Arroyo Seco Parkway, the first freeway in the western United States. The entire Route 110 connects San Pedro and the Port of Los Angeles with Downtown Los Angeles and Pasadena. I-110 is one of two 3-digit interstate designations to appear on opposite coasts, with I-280 in California and New Jersey being the other. ==Route description== This route is part of the California Freeway and Expressway System. The Harbor Freeway begins at Gaffey Street in San Pedro, where it then travels mostly due north to the Santa Monica Freeway (Interstate 10) at a point south of downtown Los Angeles, where it becomes signed as State Route 110. I-110 is primarily within the city limits of Los Angeles, running right through South Central Los Angeles and the Harbor Gateway, a two-mile (3 km) wide north–south corridor that was annexed by the city of Los Angeles specifically to connect San Pedro, Wilmington and the Port of Los Angeles with the rest the city. In addition, the Harbor Transitway, a grade-separated bus and high-occupancy vehicle corridor in the median of 110, runs between State Route 91 (Gardena Freeway) and the south side of Downtown Los Angeles. The Harbor Freeway, along with the Long Beach Freeway, are the principal means for freight from the port of Los Angeles to rail yards and warehouses further inland. Its interchange with the Santa Monica Freeway is notoriously busy and congested, and the portions bordering Bunker Hill in northwest Downtown Los Angeles are choked with traffic at peak travel times. Notable landmarks and attractions near the Harbor Freeway include the California State University, Dominguez Hills; Watts Towers; Exposition Park (including the Los Angeles Memorial Coliseum); the University of Southern California; Staples Center; Los Angeles Harbor College; the skyline of Downtown Los Angeles; and the Los Angeles Convention Center. SR 110 continues north on the Arroyo Seco Parkway to Pasadena. The Harbor Freeway is noted for its elaborate high-occupancy toll lane feature, with the HOT lanes elevated above the rest of traffic in many areas, constructed in 1994 by C.C. Myers, Inc. as HOV lanes and converted to HOT lanes in 2012. Of particular note is the Judge Harry Pregerson Interchange, which contains the most elaborate network of direct HOV/HOT connectors in Los Angeles County. It includes a 7-story ramp that connects the Century Freeway's HOV lanes to the Harbor Freeway's northbound HOT lanes and offers splendid views of the entire Los Angeles Basin and the San Gabriel Mountains.The interchange with State Route 91 (formally known as the Edmund J. Russ Interchange) is also fairly large. 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「Interstate 110 and State Route 110 (California)」の詳細全文を読む スポンサード リンク
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