Show HOW ARE YOUR DECIBELS noise may be measured in units called decibels by machines devised by a new york commission which has started a campagna for a less noisy city if an automobile or truck produces more than 90 decibels well its just too many everyone knows that erces sivea noise is an enemy of nerves and health and motor vehicles are among the greatest producers of unnecessary clatter bang and racket A well kept vehicle is comparatively less noisy than a neglected one and it is quite proper that authorities should try to suppress the noisy ones but not all motoring decibels are made by automobiles themselves the worst noises are caused by cars and trucks plunging into depressions made by digging up streets to connect or repair gas and water mains these are not only nerve shattering but injure vehicles and often cause dangerous accidents engineers have found a way to eliminate these unsightly street scars and their consequences by laying the mains behind the curb line on both sides so the surface of the street need never be torn up the progress made in this direction in recent years indicates that in the future all streets will have gas and water mains so placed and the street surface will be left intact for smooth quiet transportation for which it was intended |