To measure the extent of restraint usage by occupants of vehicles using Michigan roads, a state-wide observation survey was carried out at 217 signalized intersections in 32 of Michigan's 83 counties. Over 30 days in August and September of 1983 two field investigators observed 13,812 vehicles containing almost 20,000 occupants. The survey was conducted on all seven days of the week and during the twelve daylight hours from 8:00 a.m. to 8:00 p.m. In addition to observing seat belt usage for each occupant, the field investigators recorded the vehicle type and license number and the sex and estimated age of each occupant. Overall the data showed that 14.4 percent of drivers and 13.8 percent of all occupants were restrained. About 55 percent of the children under four were using child restraint devices, although not always correctly, indicating considerable compliance with Michigan's mandatory child restraint law. A supplementary survey of child restraint devices in 60 parking lots did not obtain sufficient numbers of observations for meaningful analysis. Therefore these data are not included in the report.
Seat Belt Observations in Michigan - August/September 1983
1984
77 pages
Report
No indication
English
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