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原文传递 ECONOMIC ANALYSIS FOR CAPACITY AUGMENTATION AND CHANGING WHEEL PATH

题名：	ECONOMIC ANALYSIS FOR CAPACITY AUGMENTATION AND CHANGING WHEEL PATH
其他题名：	1.John Rebbechi(1997).Pavement Work Tip no 4,Asphalt Joint Prepared by Austroads Pavement Research Group representative or AAPA and National Asphalt Research Coordination Group(NARC).
正文语种：	英文
作者：	Swapan Kumar Bagui
关键词：	rehabilitation；analysis；maintenance；economic；government；lane；section；loading；stress；options
摘要：	Government of India has been constructing four/six lanes of national highway system since the past 15 years. It has been found that roads are distressed during operation period in the form of rut and crack due to overloading of the vehicles and substandard material used during execution of the work along with poor quality control of works. Wheel path of inner lane or outer lane has been damaged. Distress section is only 6-10％ of the carriageway width and remaining portion is in sound condition as is evident from Benkelman Beam Deflection (BBD) test results. It is also found that old lane is damaged earlier than of new lane added during construction from four lanes divided carriageway. Optimum maintenance has been determined changing or shifting wheel path during major rehabilitation by widening carriageway width by 0.6 m and shifting wheel path of old lane at time of four lane construction. A case study has been considered taking five options for economic analysis and it is found that extra widening during major rehabilitation time (generally after 9/10 years of initial construction) is the best option for rehabilitation. Highest internal rate of return is found to be 19.8％ for this option and total transportation cost is also minimized. The case study is presented here.
出版年：	2018
论文唯一标识：	I-75Y2018V46N12008
英文栏目名称：	Technical Papers
期刊名称：	Indian Highways
拼音刊名(出版物代码)：	I-75
卷：	46
期：	12
页码：	53-56