دانلود مقاله ISI انگلیسی شماره 151421
کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
151421 2017 14 صفحه PDF سفارش دهید 7207 کلمه
خرید مقاله
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عنوان انگلیسی
Optimization of horizontal alignment geometry in road design and reconstruction
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Transportation Research Part C: Emerging Technologies, Volume 74, January 2017, Pages 261-274

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چکیده انگلیسی

This paper presents a general formulation for optimization of horizontal road alignment, composed of tangential segments and circular curves suitably connected with transition curves (clothoids). It consists of a constrained optimization problem where the objective function is given by a line integral along the layout. The integrand is a function representing the cost of the road going through each point and, by considering different costs, a wide range of problems can be included in this formulation. To show it, we apply this methodology to three different situations. The two first cases are related with the design of a new road layout and used to solve a pair of academic examples. The third problem deals with the improvement of a road adapting the old path to current legislation, and it is solved taking as case study the reconstruction project for a regional road (NA-601) in the north of Spain.

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