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  Highlights of Environmental Initiatives in FY2002
Environmental
Management
Development and Design
  Product Environmental Management System
  Improving Fuel Efficiency
  Reducing Exhaust Emissions
  Promoting an Increase in the Number of Vehicles that Meet Both the Ultra Low-Emission Vehicle Level and the 2010 Fuel Efficiency Standards
  Reducing External Automobile Noise
  Clean-Energy Vehicles
  LCA
  LCA of New Models and Models Undergoing Complete Redesign
  New Prius: Unveiled at the New York International Automobile Show
Procurement/Production/
Logistics
Recycling and Sales/After Sales
Automobile Peripheral
and Other Businesses
Environmental Education/
Communication
Special Story
Consolidated Environmental Management
Environment-Related Awards Received by Toyota
Continued Reporting of
Environmental Aspects
Environmental
Chronological Table
 
  Completion of Responses to Regulations on Commercial Vehicles
Toyota has worked continuously on improvements to attain the goal of meeting its voluntary standards2 on external automobile noise in all its vehicles. In FY2002, 10 passenger vehicle series, 5 small truck series, and 2 medium truck series (for a total of 17 vehicle series) met the latest standards. As a result, all 16 small and medium truck series have met the latest standards. All of Toyota's passenger cars have already achieved this goal, and new models and models that undergo complete redesign are also being made compliant.
2. Voluntary standards: Set at one decibel lower than the regulation value
 
Reducing External Automobile Noise in Commercial Vehicles
To reduce external engine noise, Toyota used such measures as increasing the engine block strength and installing an engine undercover equipped with sound-absorbent materials. Toyota uses a newly developed sound-absorbent material with a cell structure for the undercover and sidecover. Intake system noise has been reduced by using an intake resonator while a larger-capacity muffler reduces exhaust noise, thereby reducing external automobile noise.   •Examples of Measures to Reduce Noise Pollution
 
•Status of External Noise Reduction in Small Trucks

*"Achievement rate" means the number of vehicle series meeting the tighter regulations as a percentage of all Toyota small trucks (11 vehicle series)
*The following vehicle series met the regulations in FY2002: Passenger vehicles: Harrier, ist, Caldina, VOLTZ, Probox/Succeed, WiLL CYPHA, WISH, Alphard, Land Cruiser Prado, Hilux Surf (10 vehicle series)
Small trucks: Hiace, Liteace/Town Ace Truck, Liteace/Town Ace Van, Land Cruiser 100, Himedic (5 vehicle series)
Medium trucks: Dyna 200, Quick Delivery (2 vehicle series)
  •Trends in Acceleration Noise of Small Trucks


*Number of models: The total number of combinations of engine and transmission by vehicle series
 
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