Emergency Vehicle Warning Devices: Interim Review of the State-of-the-art Relative to Performance Standards
U.S. Department of Justice, National Institute of Law Enforcement and Criminal Justice, 1972 - Automobiles - 73 pages
What people are saying - Write a review
We haven't found any reviews in the usual places.
Other editions - View all
_ I _ _ I I _ addition amplifier analysis axis background calibration channel characteristics circuit color complex described determined developed direction distance distribution driver effective intensity effectiveness electronic emergency vehicle emergency warning equipment example feet field Figure filters flashing light frequency front function given goniometer horizontal I I I illuminance incandescent intensity lamp less light source literature located luminous measurements meter microphone mounted noise obtained operated output passed patterns performance standards photocell photometric photosensor physical placed planned present pressure procedure produced range ratio reaction reflector relative response rotating sample selected shown shows side signal single siren sound levels specifications speed standard standard lamp tape recorder target vehicle temperature traffic unit usually utilized voltage warning devices warning lights