REACTIVE NOISE BARRIER OPTIMIZATION PLAN FOR NOISEPOLLUTION REDUCTION IN FIFTEEN DISTRICTS OF TEHRAN

Introduction: In today's society, since noise pollution has been accepted as an environmental problem, so a novel and cost effective management planning is needed. The objectives of this study are to determine the work breakdown structure then to draw a Gantt charts. Materials and methods: In this paper, the sound levels of maxmin,,LLLeq were studied in fifteen districts of Tehran by a calibrated sound analyzer. Once the dominant frequency was determined, the most appropriate project was scheduled. In this case, the reactive noise barrier optimization regarding to the needy activities and resources has been done by MSP software. Finally, a resource allocation is offered. Results: The results showed that, if the project is going to start in planning stage, which coincides with the date 01.01.2013 to 12.10.1391 solar calendar, and finish during the approximate duration of 50 days in date of 02.20.2013 or 01.12.1391 solar calendar, so an additional allocation will be added. The start time of some activities delayed to resolve interference. Meanwhile, the best project end date was postponed on 04.30.2013 or0 2.10.1392 calendar. Conclusions: Based on past experiences, the required time for a project is to determine in approximation time. But since it can be obtained an exact schedule in frame work of project management regarding to sufficient cost and resources, so some management procedure have been offered in which a sufficient planning process is the best to design the reactive noise barriers before planning phase, this can prevent resources losses and leads to project success and its purpose by required timing.