Abstract
The relationship between the two speeds which are the posted speed limits design speed principle and actual operating speed are among the crucial factors in determining appropriate speed limits in a speed zone. This research paper investigates the speed trend at three different spot locations along Jalan Meru Multilane Highway. The spot speed and traffic volumes data were collected at these spot locations with various roadway width and shoulder width. Then, the 85th percentile speeds were computed at each location and the relationship between flow rate and width of the roadway were established. The regression analysis of the operating speed indicates that the percentage of operating speed exceeded the posted speed limits compared to the existing speed limit value. The relationships established here between operating speed and posted speed limits may be expected to provide some quantifying basis for transportation agencies to set posted speed limits in speed with the similar geometric zones. The end of this study may help the Authority and the Department of Transportation and its districts to quantify and revise the speed limits. This offered more significant, result oriented, technical judgement and insights in setting the appropriate speed limits.
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Acknowledgments
The authors would like to thank Dr. Muhammad Akram Adnan, the lecturer from Faculty of Civil Engineering, Universiti Teknologi MARA (UiTM) for his significant contribution and full guidance along the process of completing this paper. Words of gratitude are also extended to all individuals and organizations that have made this study possible.
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Nazri, M.N.H.S. et al. (2016). Relevancy of the Installed Posted Speed Limit Based on the Operating Speed Study on Multilane Highway. In: Yusoff, M., Hamid, N., Arshad, M., Arshad, A., Ridzuan, A., Awang, H. (eds) InCIEC 2015. Springer, Singapore. https://doi.org/10.1007/978-981-10-0155-0_84
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DOI: https://doi.org/10.1007/978-981-10-0155-0_84
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