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This list of roads in Metro Manila summarizes the major thoroughfares and the numbering system currently being implemented in Metro Manila, Philippines. Metro Manila's arterial road network consists of National Roads, the Circumferential Roads, and the Radial Roads, as well as the other major roads connecting the cities of Manila, Quezon, North and South Caloocan, Valenzuela, Malabon, Navotas, Pasay, Parañaque, Las Piñas, Taguig, Marikina, Pasig, Mandaluyong, Makati, Pateros and San Juan as well as the surrounding provinces.〔〔(【引用サイトリンク】title=3rd Urpo )〕 ==List of numbered routes== The first road numbering system in the Philippines was adopted in 1930 by the administration of President Manuel Quezon, and was very much similar to U.S. Highway numbering system. Portions of it are 70 roads labeled Highway 1-Highway 60. Some parts of the numbering system are Admiral Dewey Boulevard (Highway 1), Calle Manila (Highway 50) and 19 de Junio (Highway 54). In 1945, the Metropolitan Thoroughfare Plan was submitted by Quezon City planners Louis Croft and Antonio Kayanan which proposed the laying of 10 Radial Roads, which purposes in conveying traffic in and out of the City of Manila to the surrounding cities and provinces, and the completion of 6 Circumferential Roads, that will act as beltways of the city, forming altogether a web-like arterial road system.〔 The Department of Public Works and Highways (DPWH) is the government agency that deals with these projects.〔(【引用サイトリンク】title=DPWH Philippines )〕 The road numbering for Radial Roads are R(Radial Road)-1 up to R-10. The radial roads never intersect one another and they do not intersect circumferential roads twice; hence they continue straight routes leading out from the city of Manila to the provinces. The numbering is arranged in a counter clockwise pattern, where in the southernmost is R-1 and the northernmost is R-10. The Circumferential Roads are numbered C(Circumferential Road)-1 to C-6. The innermost beltway in the city is C-1, while the outermost is C-6. 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「List of roads in Metro Manila」の詳細全文を読む スポンサード リンク
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