Modeling Operating Speed with Regard to Pavement Roughness Index (IRI) at Two-Lane Highway
An increase in vehicle production impacts the transportation system due to the maintenance of the pavement. The major factor that influenced the expansion of transportation system is the road structure itself, which played such a vital role, in the develo
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Abstract An increase in vehicle production impacts the transportation system due to the maintenance of the pavement. The major factor that influenced the expansion of transportation system is the road structure itself, which played such a vital role, in the development of pavement rapidly in Malaysia. Challenges need to be faced by the authority to ensure the road roughness is smoother and compatible with the expansion of the transportation system. Thus, this study investigates the relation of operating speed and traffic engineering parameters with regard to the pavement roughness index. Meanwhile, this study was conducted to develop a good model that is able to reflect and explain the relationship that exists on traffic engineering parameters to the pavement roughness at two-lane highway.
Keywords Operating speed Traffic engineering parameters roughness International roughness index
Pavement
1 Introduction Increases in transportation systems are parallel with the expansion of vehicles’ numbers. Thus, it gives challenges to the development of pavement in Malaysia in terms of pavement maintenance. The acceptance of any new transportation system is taken into account by the condition of pavement roughness. Meanwhile, it represents to which passengers are exposed according to their riding quality or riding comfort. Therefore, to improve the driving conditions of the highway system, pavement roughness should be addressed with priority. Numerous studies have shown that A.M.B.A. Rahim (&) N.B. Sulaiman T.B.H.B.T. Besar Faculty of Civil Engineering, UiTM Shah Alam, Shah Alam, Selangor, Malaysia e-mail: [email protected] M.A.B. Adnan Faculty of Civil Engineering, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia © Springer Science+Business Media Singapore 2016 M. Yusoff et al. (eds.), InCIEC 2015, DOI 10.1007/978-981-10-0155-0_81
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initial pavement roughness greatly affects future roughness and roughness progression [1]. The objectives of this study are to conduct survey of road profiling with regard to International Roughness Index (IRI), to classify traffic engineering parameter’s relation toward pavement roughness by applying Automatic Traffic Counter (ATC) and to develop model which adheres to the operating speed with the pavement roughness. The location of this study is at Sepang and Batu Arang, Selangor. Site location criteria’s are R5 road design standard, two-lane highways, asphalt pavement surface with characteristic of approximately 2 m width shoulder and 2 m unpaved shoulder. Hence, this study will discover the precedence to acknowledge the operating speed and traffic engineering parameters in collecting the data to incorporate into the pavement profile and defining other significant factors contributing the pavement distress. Therefore, in situ test like Automatic Traffic Counter (ATC) test and International Roughness Index (IRI) test were conducted. The ATC was installed to evaluate the traffic on two-lane highway under study, while International Roughness Index
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