Show Drivers Outwit Interlock A significant but number of Utah have devised means for outwitting the mandatory ignition interlock systems on 1974 according to a University of Utah THE REPORT said telephone interviews with drivers or owners of 1974 cars involved in crashes indicated that percent of them previously had taken steps to by-pass the interlock results were not said John A. assistant professor of mechanical engineering and principal architect of the anticipated the figure would be that HE SAID the interviews were conducted by the Utah Auto Crash Research Team as part of an on-going investigation of the causes of highway crashes and personal Prepared for the U.S. Department of the survey noted a increase in seat bell usage by drivers of 1974 cars over drivers of 1973 Nearly 1973 and 1974 cars involved in accidents were studied by the Utah THE INCREASE in seat belt usage was described as by Rudy associate research and director of the auto crash research Seat belt usage was up in all age categories except persons 61 and over where a percent decrease was The largest increase of percent was among persons in the 41 to 50 year-old THE INTERLOCK which prevents a car from starting until the front seal belts are was made mandatory for 1974 but Congress recently enacted legislation that makes the requirement optional in Of the 95 vehicles In which the system was 31 drivers said they did so because of their dislike for wearing NEXT on the list were drivers who said the car took too long to start and 16 who said passengers Ten drivers described the interlock as a and six found the THE report also noted that in 65 percent oi the the driver accomplished the by-pass usually by buckling the belt behind him or unplugging the the Utah sor said there is no question that seat belts increase safety and referred to statistics in the report which he said bear him THE STUDY revealed that injuries were percent higher among non-belt users than |