期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：267
期号：4
页码：1-6
DOI：10.1088/1755-1315/267/4/042008
出版社：IOP Publishing
摘要：The geometric design of motorways in the mountainous area is the top priority of the interchange planning and design. Reasonable ramp geometric design can not only reduce the cost and difficulties of construction of the interchange, but also improve the driving conditions, ensure traffic safety and improve the comfort of driving. Based on the development of foreign geometric alignment design practice, this paper analyze the continuous travel performance of vehicles on mountainous interchange ramps, and then proposes a highway geometric elements design method based on operating speed for practitioners to predict operating speed on ramps. The method will allow the auditors and the designers to proceed operating speed prediction for varied vehicle types for mountainous interchange ramps, which is also expected to give the auditors a good way to evaluate the consistency between driver's expectation and the geometric design of the ramps.
