Basic Statistics on Urban Infrastructure
Item 2011 2012 2013
       
Urban Facilities
    Population Density                                (person/sq.km) 1389 1349 1361
    Per Capita Daily Water Consumption                  (litre) 129.8 131.6 134.9
    Coverage Rate of Water Supply                              (%) 99.7 99.9 99.9
    Coverage Rate of Natural Gas Supply                     (%) 99.5 99.5 99.6
    Per Capita Area of Roads                                    (sq.m) 23.6 24.7 25.3
    Built-up Area Density of Sewage Pipelines (km/sq.km) 10.7 11.0 11.0
    Per Capita Public Green Areas                            (sq.m) 16.0 16.4 16.8
    Coverage Rate of Urban Green Areas                     (%) 41.5 42.1 42.6
Water Supply
    Volume of Water Supply                        (10 000 cu.m) 313500 327449 331898
      For Productive Use                               (10 000 cu.m) 139700 143546 140888
    Population Using Water                     (10 000 persons) 2792 2887 2941
Public Transportation
    Volume of Passenger Traffic      (10 000 person-times)   380085 398268 411311
    Number of Operating Vehicles                            (unit) 31230 32869 35031
    Number of Taxis                                                  (unit) 58462 58758 59080
Infrastructure and Waste Water Treatment
    Area of Roads                                         (10 000 sq.m) 66123 71390 74646
       Area of Sidewalks                                   13999 14971 15701
    Length of Roads                                                    (km) 34681 36566 37821
    Number of Streetlights                                         (unit) 1445771 1629070 1687459
    Numer of Bridges                                                 (unit) 4359 4660 4769
    Volume of Waste Water Discharged         (10 000 tons) 265465 277437.72 281133.221
    Volume of Waste Water Treated              (10 000 tons) 247348 261415.36 266888.78
Parks,Gardens and Green Areas
    Garden Green Areas                                               (ha) 165577 176342 193646.86
    Urban  Garden Green Areas                                    (ha) 44800 47318 49518
    Coverage of Green Area                                         (ha) 188136 199899 217366
       Coverage of Urban Green Area                            (ha) 155699 165409 178528.61
    Number of Parks                                                  (unit) 660 686 733
    Area of Parks                                                         (ha) 22919 25023 29466