08 Environmental Impact Assessment
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08 Environmental Impact Assessment

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slides for urban transport courses:

slides for urban transport courses:
http://www.eng.ukm.my/riza/UrbanTransport/UrbanTransport.htm

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08 Environmental Impact Assessment 08 Environmental Impact Assessment Presentation Transcript

  • Urban TransportENVIRONMENTAL IMPACT ASSESSMENT Riza Atiq bin O.K. Rahmat
  • What is Environmental Impact Assessment? http://www.jas.sains.my/doe/egeia.htmThe aim of the environmental impact assessment is toassess the overall impact on the environment ofdevelopment projects proposed by the public and privatesectors. The objectives of environmental impactassessment are: 1. To examine and select the best from the project options available; 2. To identify and incorporate into the project plan appropriate abatement and mitigating measures; 3. To predict significant residual environmental impacts; 4. To determine the significant residual environmental impacts predicted; and 5. To identify the environmental costs and benefits of the project to the community.
  • Why do we need EIA?EIA is essentially a planning tool forpreventing environmental problems due toan action. It seeks to avoid costly mistakesin project implementation, either because ofthe environmental damages that are likelyto arise during project implementation, orbecause of modifications that may berequired subsequently in order to make theaction environmentally acceptable. InMalaysia, EIA is required under section 34A,Environmental Quality Act, 1974.
  • Parameters likely to be addressed in the description of an EIA http://www.fao.org/docrep/005/V9933E/V9933E04.htm
  • Environmental issues of a project Physical and Natural Environment •Soil erosion •Water (change in hydrological characteristic, change in water quality) •Flora (impact on rare plant species) •Fauna (Impact on rare animal species) Project site Humans and Social Environment •Noise •Air quality •Society life •Land use •Cultural heritage •Landscape
  • Development Impact on Environment Impact on Construction During operation Soil and erosion Water (Change in hydrological characteristics) Flora Fauna Noise Air quality Society life and economical activity Land use (possible conflicts) Cultural heritage Landscape (Compatibility with the plans of nature frame
  • Example: Noise 73dB 70dB 15.2m 30.4m 88km/hrContinuous noise of 80dB will damage human hearing
  • Example: MitigationNoise barrier(Source: http://en.wikipedia.org/wiki/Noise_barrier)
  • Example: Change in hydrological characteristics 40% 30% evaporate evaporate 10% runoff 55% runoff water water 25% surface penetration 10% surface penetration 25% deep penetration 5% deep penetration