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The Ventura Freeway is a freeway in southern California running from the Santa Barbara/Ventura county line〔 to Pasadena. It is the principal east-west route (designated north-south) through Ventura County and in the southern San Fernando Valley in Los Angeles County. From the Santa Barbara County line to its intersection with the Hollywood Freeway in the southeastern San Fernando Valley in Los Angeles (the Hollywood Split), it is signed as U.S. Route 101, which was built in the late 1950s and opened on April 5, 1960.〔Kevin Starr, ''Golden Dreams: California in an Age of Abundance, 1950-1963'' (New York: Oxford University Press, 2009), p. 3.〕 East of the Hollywood Freeway intersection, it is signed as State Route 134 (SR 134) which was built by 1971. The entire Ventura Freeway is not built to freeway standards, however; the segment that runs through the coastal communities of La Conchita and Mussel Shoals in western Ventura County still remains an expressway. Prior to the construction of a new alignment in 1971, the portion east of the Golden State Freeway was known as the Colorado Freeway in reference to nearby Colorado Boulevard, a historic thoroughfare in Pasadena and northeastern Los Angeles. ==Route description== The Ventura Freeway begins at the Santa Barbara/Ventura county line at the Bates Road exit of U.S. 101 (Exit 83), west of La Conchita. The road alternates between a freeway and an expressway up to the seashore community of Mussel Shoals, when it becomes a freeway for the rest of its length. The freeway travels eastward through the citrus orchards and strawberry fields of the Oxnard Plain before ascending the short, steep Conejo Grade into the Conejo Valley. Continuing eastward through the northern Santa Monica Mountains, it crosses the Ventura/Los Angeles county line before entering the San Fernando Valley. The freeway continues eastward along the valley's southern rim, crossing the 405 and 5 freeways and the Los Angeles River. After passing through Downtown Glendale south of the Verdugo Mountains, it continues along the southern slope of the San Rafael Hills between Glendale and Eagle Rock before entering Pasadena near the Arroyo Seco and terminating at the Foothill Freeway. The Ventura Freeway suffers from severe congestion. Its intersection with the San Diego Freeway, in Sherman Oaks, is consistently rated as one of the five most congested interchanges in the nation.〔(Infoplease ), Quoting the" ''American Highway Users Alliance, Unclogging America’s Arteries, 1999–2004'' () rates 101-405 as the Worst Highway Bottleneck〕 Where it meets the Hollywood Freeway at the Hollywood Split junction, it is also notably congested. During events at the Rose Bowl, the freeway's eastern portions often resemble a parking lot. The east-west geographical alignment of the Ventura Freeway and the overall north-south (Washington-to-California) designation of U.S. 101 on freeway signs can be confusing to visitors; the same freeway entrance can often be signed as "101 North" and "101 West"; this is most common in the San Fernando Valley.〔(Total Traffic LA ) 101 NORTH (WEST) AT WINNETKA IN WOODLAND HILLS CLOSED DUE TO AN OVERTURNED SUV (note 101 NORTH (WEST))〕 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「Ventura Freeway」の詳細全文を読む スポンサード リンク
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