waynezhangw/transit-accessibility-models

Modeling transit accessibility and its calculation in C++ based on real big transit data

Transit-accessibility-models

Modeling transit accessibility and its calculation in C++ based on real big transit data

1.Merge chaos bus stations using k-means algorithm

Input:  
  id-station-line-Xcoordinate-Ycoordinate  
  28381,182设计园,高峰专线79路,511842.799269000010000,2505130.479450000000000
  25089,182设计园,M346路,511851.960881999980000,2505127.288970000100000  
  25405,182设计园,M324路,511844.956085000010000,2505135.353399999900000
  21393,182设计园,980路,511853.813984000010000,2505126.407550000100000
  24107,182设计园,M273路,511854.638592000000000,2505124.859910000100000
  28432,182设计园,高峰专线79路,511835.503604000030000,2505117.958999999800000
  23479,182设计园,M224路,511861.122760000000000,2505123.656669999900000
  ...  
Output:  
    mergedStation-Line-Xcoordinate-Ycoordinate  
    182设计园a,高峰专线79路,511841.086319,2505127.930617
    182设计园b,M346路,511855.384055,2505125.553275
    ...

2.Get the duration time for every single trip

Input:  
  trip records;  
  mergedStation records;
Output:  
  trip records with duration;
  ...

3.Merge those single grids(cells) to group of cells(GOCs)

Input:
    streets data;
    mergedStation records;
    all the original 100x100m grids;
Output:
    merged GOCs and their owning stations;

4.Calculating transit accessibility based on GOCs

Input:
    trip records;
    merged GOCs;
    other compared records;
Output:
    the accessibility values;