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ERIC Number: EJ406865
Record Type: Journal
Publication Date: 1990
Pages: N/A
Abstractor: N/A
ISBN: N/A
ISSN: N/A
Choosing a Motion Detector.
Ballard, David M.
School Business Affairs, v56 n4 p26-27 Apr 1990
Examines the characteristics of three types of motion detectors: Doppler radar, infrared, and ultrasonic wave, and how they are used on school buses to prevent students from being killed by their own school bus. Other safety devices cited are bus crossing arms and a camera monitor system. (MLF)
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A