Table 3 Railway construction scheme setting.
Criterion layer | Indicator layer | Alternative scheme | ||
|---|---|---|---|---|
A | B | C | ||
Engineering dimension | Railway length (km) | 304.52 | 314.21 | 311.32 |
Engineering dimension | Proportion of bridge and tunnel (%) | 63.47 | 62.66 | 64.83 |
Engineering dimension | The amount of land requisition (hm2) | 33,826.21 | 35,920.25 | 35,141.83 |
Engineering dimension | Earthwork volume (104 m3) | 126.83 | 134.68 | 131.76 |
Engineering dimension | Demolition engineering quantity (m2) | 432,768 | 454,224 | 446,448 |
Economic dimension | Converted annual project cost (billion yuan) | 362.3788 | 376.8 | 373.2 |
Economic dimension | Economic inner profit ratio (%) | 9.8 | 8.8 | 9.2 |
Economic dimension | Economic net present value (million yuan) | 1,103,386 | 972,086 | 1,023,026 |
Environment dimension | Impacts on ecosystems along the route | Smaller | Smaller | Smaller |
Environment dimension | The influence of topography and geology | Larger | Large | Larger |
Environment dimension | Impact on the cultural heritage conservation areas | Small | Small | Small |
Environment dimension | Impact on water sources | Smaller | Small | Small |
Environment dimension | The influence of noise and vibration in engineering | Large | Small | Large |
Social dimension | The improvement of the road network structure | Good | Good | Good |
Social dimension | The degree of fit with regional planning | Bad | Bad | Worst |
Social dimension | The ability to attract passenger and freight flow | Better | Good | Bad |
Social dimension | The impact of driving regional economic development | Better | Worst | Worst |
Social dimension | Impact of industrial development | Better | Better | Better |
