Figure 1 and Figure 2 set forth below relate to allowable sound levels for motor vehicles as specified in § 24-232(a) of the Administrative Code (Noise Control Code). These figures shall be used for the interpolation between Column I and Column II of Table I of said section to determine the allowable sound levels for motor vehicles operated at speeds of 35 miles per hour or less and speeds of more than 35 miles per hour, respectively, at distances between twenty-five and fifty feet from the center of the lane of the public highway in which the motor vehicle is idling or is traveling.
