Table 4.1 : Summary of Noise Standards - This table consists of 6 columns.  The first column is 'Uses', the second column is 'Noise Standards by Noise Source - Aircraft Noise (Noise Exposure Forecast : NEF) ',  the third column is 'Noise Standards by Noise Source - Helicopter Noise Lmax dB(A)', the fourth column is 'Noise Standards by Noise Source - Road Traffic Noise L10 (1hour) dB(A)', the fifth column is 'Noise Standards by Noise Source - Rail Traffic Noise' and the sixth column is 'Noise Standards by Noise Source - Fixed Noise Source'.  End of summary