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Principal Research Facilities

		Chassis Dynamometer for Large-sized Vehicles		Laboratory Test System for Tire Noise
		Heavy Duty Diesel Engine Dynamo		Single-Cylinder Test Engine and Laser Measurement System
		Anechoic Chamber (Electromagnetic Wave Measurement System)		Goniophotometer of Automobile Headlamps (Light Dark Room)
		Automobile Braking Performance Measurement System		Low-Visibility Test Building
		Bogie Truck Test Plant		Primary Side on Ground Linear Motor Test Facilities

		Laboratory Test System for Tire Noise
		This is a laboratory test system that reproduces contact between a tire and the road surface in a state close to actual conditions of roads. The system also reproduces various conditions including those seen during acceleration. Pads that simulate road surfaces are mounted on rollers to reproduce conditions of actual roads more faithfully. Anti-noise measures are provided with bearings and motive-power absorption areas to drastically reduce noise generated during roller rotation.

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Independent Administrative Institution National Traffic Safety and Environment Laboratory 7-42-27, Jindaijihigashimachi, Chofu, Tokyo, 182-0012 Japan TEL:+81-422-41-3207

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