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Author: search.filters.author.AMARASINGHA, NSubject: search.filters.subject.Development

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    PublicationOpen Access
    Experience of Automatic Traffic Data Collection for Development of Adjustment Factors in Colombo Suburban
    (Eastern Asia Society for Transportation Studies, 2019-12-31) AHAMED, R. W; LANKATHILAKE, T. N; AMARASINGHA, N
    Annual Average Daily Traffic (AADT) is one of the key parameters in the field of transportation. It is traditionally used for planning and designing purposes in road sector. This research was carried out for development of adjustment factors for AADT estimation two-way two-lane road of Colombo suburban. Malabe-Kaduwele roadway was selected to conduct the research. Data were collected using automatic traffic counter (Metro-Count device) at Malabe-Kaduwele road in front of SLIIT Malabe campus for the period of five and half months. From the data, hourly expansion factors (HEF) and daily expansion factors (DEF) were estimated. The data collection period was not sufficient to develop monthly expansion factors (MEF) but an attempt was made to develop factors for months fall in data collection period. The experience obtained in this study could be used for developing adjustment factors in future.