Quality of Transport Routes
Item	1990	1995	2000	2001	2002	2003
Length of National Railways in Operation (km)	53378	54616	58656	59079	71900	73000
Double-Tracking Length (km)	13024	16909	21408	22640	23058
Proportion (%)	24.4	31.0	36.5	38.3	38.7
Automatic Blocking Length (km)	10370	12910	18318	18845	20682
Proportion (%)	19.4	23.6	31.2	31.9	34.7
Length of Highways (km)	1028348	1157009	1402698	1698012	1765222	1809800
Expressways and Class I- IV Highways	741040	910754	1216013	1336044	1382926
Proportion (%)	72.1	78.7	86.7	78.7	78.3
Length of Navigable Inland Waterways (km)	109192	110562	119325	121535	121557	124000
Standard Waterways (km)		56587	61367	63692	63597
Proportion (%)		51.2	51.4	52.4	52.3