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原文传递 Availability and Implementation Trends of Daytime Running Lights in the U.S.

题名：	Availability and Implementation Trends of Daytime Running Lights in the U.S.
作者：	takenobu, n. schoettle, b. sivak, m.
关键词：	motor vehicles, availability, standards, implementation, headlamps, crash reduction, evaluation, traffic safety, passenger cars, trends
摘要：	This report documents market-weighted trends in the availability of daytime running lights (DRLs) on the best-selling vehicle models in the U.S. for model years 2000, 2004, and 2007. Also presented are analyses of how DRLs are implemented on current vehicles. The availability of DRLs as standard equipment in our samples has increased from 29% in 2000 to 46% in 2007. The current availability depends on vehicle type. For example, there are still few vans equipped with DRLs (13%), but they have become a common feature on passenger cars (61%). For vehicles with DRLs as standard equipment, low-beam headlamps are the most common type of implementation (39%); in terms of trends by vehicle type, passenger cars most frequently use reduced-intensity high-beam headlamps (55%). / Availability Note: Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA.
总页数：	u0814；39p
报告类型：	科技报告