Abstract:
With the rapid economic development and urbanization process in China, there emerges minor cities, satellite towns, development zones and so on. Under this background, some ultra-wide urban streets, with right-of-way width equal to or over 70.0m and different to the ordinary urban streets, also came into being. This paper firstly defines what ultra-wide urban street is by the comparison of several different widths, then, presents the locations and functions of ultra-wide streets. Based on some completed projects at Hangzhou, Nanjing and several other cities, the typical cross sections of ultra-wide streets are summarized, and further more, the key traffic organization methods for ultra-wide streets are detailed listed and demonstrated. Finally, this paper points out the possible problems in current ultra-wide streets and concludes the considerations for the use of ultra-wide streets.
