The size of noise Barrier is 1.980 meter wide and 1.00 meter high with the thickness of 15 centimeters and total weight is 122 kg. per piece for reflective type and 135 kg. per piece for noise absorptive type).
(The general criteria are that noise must be lost by 25 dB minimally after transmitting through wall.)
Sound Transmission Loss: TL 34 dB (Reflective type)
Sound Transmission Loss: TL 41 dB (Absorptive type)