12-13  Monitoring of Urban Road Traffic Noise in Key Cities (2004)
City						(LeqdBA)
	Total Length	Roads with	Percentage of	Average  Width	Average	Average
	of Roads	Excess Noise	Roads with	of Roads	Traffic	Noise
	(m)	(m)	Excess Noise	(m)	Volume	Value
			(%)		(car/hour)	(LeqdBA)
Beijing	589642	251187	42.6	36.3	5705	69.6
Tianjin	267941	46086	17.2	28.2	2307	68.0
Shijiazhuang	179402	33369	18.6	28.8	1596	67.5
Taiyuan	138000	35052	25.4			68.0
Hohhot	82649	29836	36.1	30.0	1994	69.4
Shenyang	144000	6768	4.7	33.7	2381	68.2
Changchun	123604	22867	18.5	30.6	2760	68.3
Harbin	120200	28127	23.4	17.0	2262	68.2
Shanghai	210540	158326	75.2	20.0	2364	72.3
Nanjing	171122	66909	39.1	30.3	1958	69.3
Hangzhou	188955	39303	20.8	16.3	2020	67.9
Hefei	94021	3761	4.0	38.9	2118	67.8
Fuzhou	111230	17463	15.7	22.9	2366	68.4
Nanchang	67500	25718	38.1	31.2	3038	69.7
Jinan	196374	75408	38.4	43.3	2621	69.1
Zhengzhou	84115	28599	34.0	43.5	2064	67.7
Wuhan	249800	142886	57.2	19.9	2290	70.0
Changsha	93900	51739	55.1	29.4	2754	69.9
Guangzhou	248064	82109	33.1	24.0	3473	69.3
Nanning	102000	50694	49.7	19.8	3310	69.7
Haikou	107280	15985	14.9	34.2	2729	67.8
Chongqing	337600	79336	23.5	16.2	1725	68.1
Chengdu	321212	84479	26.3	44.3	2845	68.5
Guiyang	54300	21611	39.8	36.4	2785	69.5
Kunming	91494	28821	31.5	30.0	2026	68.0
Lhasa	52950			18.7	747	63.8
Xi'an	204017	25706	12.6	24.3	2701	68.0
Lanzhou	125396	35989	28.7	20.0	1538	68.9
Xining	83420	55558	66.6	19.1	1746	70.6
Yinchuan	94380	42377	44.9	31.0	1860	69.9
Urumqi	211600	111302	52.6	42.9	1775	69.7