Current Status of Noise Environment Status, Impact Assessment and Mitigation Measures

5 Current Status of Noise Environment Status, Impact Assessment and Mitigation Measures

5.1 Monitor and Evaluation on Current Noise Status

5.1.1 Monitoring method and sampling locations

The monitoring method shall follow the “Standard of environmental noise of urban area (GB/T14623-93)”. In principle, the measurement shall be done in the day when there is no rain and the wind velocity is less than 5.5m/s.

(3) Sampling points for Kuiqi Bridge: 1# Kuiqi Village; 2# Kuiqi Primary School; 3# Waitang Village; 4# Shaoqi Village. Please refer to Fig. 5.1-2 for details of above sampling points.

5.1.2 Monitoring time

Each sampling points shall be monitored for 2 days, with noise sampled in the daytime and nighttime everyday.

5.1.3 Standard for current noise environment assessment

Equivalent continuous A-weighted noise pressure level and noise level are selected for noise assessment.

Assessment by equivalent continuous noise level Leq is:

Thereinto: T ---- Measuring time；

L(t) ---- Instantaneous noise level at time t.

For background noise of the current environment, class 2 and 4 of the “Standard of environmental noise of urban area (GB3096-93)” are adopted. Please refer to Table 5.1-1 for details.

Table 5.1-1 Standard of Environmental Noise of UrbanArea (Unit: dB(A)

Class	Daytime	Nighttime
2	60	50
4	70	55

5.1.4 Monitored result of current noise environment and assessment

Please refer to Table 5.1-2 ～ Table 5.1-5 for monitored results of current noise environment

Table 0 7 Noise Monitored at Boundary of the Phase-II Project of the Third Ring Road of Fuzhou City, Feb. 19

Sampling Point	1		2		3		4
Time	Daytime	Nighttime	Daytime	Nighttime	Daytime	Nighttime	Daytime	Nighttime
Noise Value(LAeq,dB)	51.6	42.5	51.8	42.6	46.0	42.1	52.1	43.2
Orientation of Sampling Location	Yangqi Primary School		Yangxia Village		Wushan Primary School		Pukou Xiazhou Village

Table 5.2-2 Noise Monitored at Boundary of the Phase-II Project of the Third Ring Road of Fuzhou City, Feb. 19 (To be continued)

Sampling Point	5		6		7
Time	Daytime	Nighttime	Daytime	Nighttime	Daytime	Nighttime
Noise Value(LAeq,dB)	56.8	43.0	57.6	42.7	51.3	43.2
Orientation of Sampling Location	Fujian College of Information and Technology		Duyuan Village		Linpu Primary School

Table 5.1-3 Noise Monitored at Boundary of the Phase-II Project of the Third Ring Road of Fuzhou City, Feb. 20

Sampling Point	1		2		3		4
Time	Daytime	Nighttime	Daytime	Nighttime	Daytime	Nighttime	Daytime	Nighttime
Noise Value(LAeq,dB)	52.3	42.3	52.1	42.2	47.1	42.4	51.6	42.8
Orientation of Sampling Location	Yangqi Primary School		Yangxia Village		Wushan Primary School		Pukou Xiazhou Village

Table 5.2-3 Noise Monitored at Boundary of the Phase-II Project of the Third Ring Road of Fuzhou City, Feb. 20 (To Continue)

Sampling Point	5		6		7
Time	Daytime	Nighttime	Daytime	Nighttime	Daytime	Nighttime
Noise Value(LAeq,dB)	54.3	42.7	55.7	42.5	51.8	42.8
Orientation of Sampling Location	Fujian College of Information and Technology		Duyuan Village		Linpu Primary School

Table 5.1-4 Noise Monitored at Boundary of the Nanjiang Binlu of Fuzhou City, Feb. 19

Sampling Point	8		9		10		11		12
Time	Daytime	Nighttime	Daytime	Nighttime	Daytime	Nighttime	Daytime	Nighttime	Daytime	Nighttime
Noise Value(LAeq,dB)	54.9	42.5	53.8	41.8	57.9	45.6	64.0	45.8	67.8	48.8
Orientation of Sampling Location	Puxia Village		Fanchuanpu Catholic Church		Annan Assembly Hall		Yinghua English School		Residential Area K1+620

Table 5.1-5 Noise Monitored at Boundary of the Nanjiang Binlu of Fuzhou City, Feb. 20

Sampling Point	8		9		10		11		12
Time	Daytime	Nighttime	Daytime	Nighttime	Daytime	Nighttime	Daytime	Nighttime	Daytime	Nighttime
Noise Value(LAeq,dB)	55.2	42.3	54.3	42.0	57.6	46.7	58.6	46.9	67.2	47.7
Orientation of Sampling Location	Puxia Village		Fanchuanpu Catholic Church		Annan Assembly Hall		Yinghua English School		Residential Area K1+620

Viewing from monitored results shown in Table 5.1-2 to Table 5.1-5, the L_Aeq value daytime of the Phase-II Project of the Third Ring Road is (46.0～57.6) dB, which meets Class 2 standard given in “Standard of environmental noise of urban area (GB3096-93)”, and the L_Aeq value nighttime of the Phase-II Project of the Third Ring Road is (42.1～43.2) dB, which meets Class 1 standard given in “Standard of environmental noise of urban area (GB3096-93); the L_Aeq value daytime of the Nanjiang Binlu is (53.8～67.8) dB, which meets Class 4 standard given in “Standard of environmental noise of urban area (GB3096-93)”; and the L_Aeq value nighttime of the Phase-II Project of the Third Ring Road is (41.8～48.8) dB, which meets Class 2 standard given in “Standard of environmental noise of urban area (GB3096-93).

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