Traffic impact study on noise impact in the new township at Jalan Semenyih - Beranang / Syaffiq Naqiuddin Mohamad Salleh

Introduction: Traffic Impact Assessment (TIA) is a systematic and scientific study to analyse the impact of the traffic generated by a new development on the surrounding transportation system. Precisely, a TIA mainly deals with the generation, distribution and assignment of traffic to and from the proposed new developments. TIA is undertaken mainly to ensure that the developer address all relevant transportation issues related to the new development. The TIA provides authorities, planners and developed in a controlled manner. Local Authorities may use TIA as a basis for assessing the developer's contribution to neighbouring road improvements. Objectives: The aim of this study to determine existing traffic condition in Jalan Semenyih - Beranang. Besides that, this study is aim to determine hazard, problem and risk related to road safety as well as to propose any mitigation measure related to safety issues of the road. Methodology: In general, a TIA comprises of Inspection of the site and the proposed development, understanding the existing land uses and traffic volumes, projecting the traffic volumes using Trip Generation. Analysis of the impact on adjacent roadways and recommendations of mitigations measure has been carried out. A subset of questionnaire (n=105) adapted from Marketing and Development Research Associates (MDRA) New Delhi, 2006 were used to access road user related to road safety. Results: It was observed that with continuous development of new township along Jalan Semenyih - Beranang will significantly affect the future traffic congestion. Projected trip showed 45.4 % increase of vehicle trip on AM peak hour and 10.1 % for PM peak hour from the existing traffic. The noise levels identified were at higher than standard set by DOE at 60dB at 6 junctions (n=6) along this road. The rush hour during morning peak hour reading 45.40% and evening peak time period was at 36.78%. The noise levels at the receptor area were higher than 65dB which is higher than the set standard for day time and night time. The health effects associated with traffic impacts were stress and increase of blood pressure to the population. It was found that several condition of road needs to be improved to ensure environmental, safety and health as well as c2._nvenience of road need to be improved to ensure environmental, safety and health among population in Jalan Semenyih Beranang in well manner. Conclusion: There have significantly increased of the future traffic generation with continuous development along Jalan Semenyih - Beranang. Besides that, it was conclude that speed driving increase noise volume and risk of accidents. Therefore there is need for further study on road user behaviour to identify root factor of accidents.