14-14  公路通车里程和桥梁数
Length of Highways and Number of Bridges
项    目	Item	2000	2005	2009	2010	2011	2012
通车里程 (公里)	Length of Highways                             (km)	102606	115337	184960	190144	190724	194943
#晴雨通车里程	Length of Highways Unaffected by	100863	114653	183574	188790	189421	193707
	Weather Conditions
按等级分	By Class
等级路	Expressways and Class Ⅰto Ⅳ Highways	93695	106476	160180	170144	172382	177204
高速公路	Expressways	1186	3140	4035	4839	5049	5524
一 级	First Class	5391	7301	10040	10126	10339	10544
二 级	Second Class	13397	17146	18793	19082	19044	19042
三 级	Third Class	9156	12461	15860	16089	16996	17210
四 级	Fourth Class	64565	66428	111452	120008	120955	124884
等外公路	Highways below Class Ⅳ	8911	8861	24780	19999	18342	17740
按路面分	By Pavement
有铺装路面	Paved Highways			112876	123784	129440	134808
简易铺装路面	Simply-paved Highways			6216	5721	5272	4892
未铺装路面	Unpaved Highways			65868	60638	56013	55244
桥 梁      (座)	Number of Bridges                             (unit)	19668	23948	40012	42330	43769	44468
(米)	Span of Bridges                                       (m)	819770	1260600	2033112	2340261	2660957	2801751
#永久式      (座)	Number of Permanent Bridges             (unit)	19656	23944	39926	42233	43686	44385
(米)	Span of Permanent Bridges                     (m)	819502	1260514	2029826	2337490	2658574	2799397.98
半永久式   (座)	Number of Semi-permanent Bridges    (unit)	12	4	35	52	39	40
(米)	Span of Semi-permanent Bridges            (m)	268	86	1754	1391	1023	1032
渡 口      (个)	Number of Ferries                              (unit)	33	25	71	71	72	80