how would you like to be buying one of these planes exciting dangerous looks that way doesn't well actually most flying has become routine by now and the mental side are skilled professional reduce the normal hazards to standardise proce like these the man in the machine are one in the air the pilot feels his job is relatively safe everything is under control but when he gets back to earth conditions change there are now new elements of has been proven by years of testing and act for you not just in the air but also on the ground where we drive or ride in that most lethal of wheel go under the automobile this is a bell about the white plans to protect the lives of his family on the road he does not expect to get into a serious accident where he is a careful driver but he is also a man in the wind and the brutal facts about auto mortality are now painfully clear despite the improvements in both roads and cars incorporating many performance and safety features the auto accident poll in human life continues to mount until it has now reached over one  without a thirty mile radius of the victim's home a young mother and two children died in this when they were on their way to nursery school when their car was rammed at an intersection a mother and her three year old son were crushed in the impact the five year old died in the arms of the rescue squad a doctor on his way to surgery was fatally injured here he suffered compound  fractures he was that by the time he reached the hospital this senseless waste of human life that's deadly violence and stealing from what appeared to be minor collision that research group such as the institute of and traffic engineering of the university of california to conduct a series of crash tests this is a unique kind of research in that an experimental collision is by nature a one shot operation requiring a great deal of preparation only a few seconds duration and many months of detailed analysis to evaluate the finding the experimental vehicles and their passengers have to be expendable collisions are inherently dangerous and human subjects are not easily located even if they were however there are definite advantages to using a well engineered mechanical substitute anthropometric dummies are the answer where they simulate the behavior of their human counterparts under the forces of police stock cars are elaborately instrumental collect all the data necessary for later evaluation of just what happened in their brief moments of importance before being consigned to the scrap in addition to the electronic recording apparatus cameras also record the event for study automatically controlled to begin functioning just ten seconds before impact this motion picture and still cameras record the event from all significant  angles must be under precise control at all times and aluminum on a rail guided both crashed cars to a pre determined point of impact each crash car will be paced by a manned vehicle carrying the recording of solid graphs and other control equipment the final two days are the most critical everything is checked and rechecked they cannot afford any mouth functions when they have only one shot and even small things do go wrong then it is still another ordeal of checking and testing every device every connection until all human error has been eliminated the countdown finally beg an actual crash last approximately four seconds each fraction of which contains dozens of events of life and that's significant although the cars are traveling at thirty miles an hour the slow motion camera prolongs the action of the overwhelming lateral forces of this typical intersection collision the driver of the struck car is crushed against the steering post with a force of seven hundred pounds on the door frame with a force of sixteen hundred  along the asphalt characteristically intersection collision forces far exceed the ability of any human being to resist them despite these high collision forces however the passenger in the rear seat although subjected to the more severe crisis mode of two thousand pounds was firmly held by a seatbelt and sustained no serious injury the side impact experiments investigated the intersection called a one of the most prevalent types of acts of them city driving involves at least ten intersection crossings for each mile of progress and a major decision influencing the driver safety must be made and at least every fifty five seconds drivers become so accustomed to this routine that they lose sight of the consequences of a moment and attention on the part of the driver thirty mile an hour test run at various positions facts that they were after him out of the twisted mass of steel from out of the action packed few milliseconds after all safe driving practices had already been passed had control and was only a passenger column of the force of over half a ton after which he was thrown to the passenger side where he crushed his head against the window frame when the other car turned over the driver was thrown against the rope or the ragged metal away a portion of his american medical association that they develop the ministry extent of injury and definitely improve the crash victim opportunity for survival the national safety council confirms that they are the most practical device at this time to minimize accident injury during a collision during the seven years that the california highway patrol cars have been using safety belts they are credited with saving us the number of officers live restrain the human body can withstand enormous stress the public health service agrees with other agencies concerned with safety that the use of safety valve is the most effective article means for bringing about an immediate reduction in deaths and injuries from automobile accident as individuals we can be guided by the fact the states are too high to rest on sentiment superstitio and big misgivings will reduce by hazard and they are available even a careful driver such as lieutenant might can be involved in an accident and a safety valve is the cheapest insurance and this effort all of us as individuals have a vital stake for you know safety doesn't happen by accident it takes constant vigilance the mind take