Highways England have completed an assessment of the impact on noise (measured in decibels/dB) of their noise barrier to see how successful its introduction has been. For context, a 3 dB difference is the equivalent of moving twice as far away from a noise source of before and a 6 dB difference results in a perceived noise reduction of approximately of a third. The two locations monitored with in Hunslet and Riverside Ward are detailed below.
Day
Location Before After Difference Distance
Sandon Mount 63 60 -3 50m
Clayton Drive 61 58 -3 25m
Night
Location Before After Difference Distance
Sandon Mount 58 52 -6 50m
Clayton Drive 56 56 -6 25m
Average Improvement
Location Difference
Sandon Mount -4.5
Clayton Drive -4.5