from_stop_id,to_stop_id,transfer_type,min_transfer_time
3449400,3449568,1,
3449400,3449702,1,
3449404,3449504,1,
3449410,3449745,1,
3449434,3449590,1,
3449501,3449679,1,
3449504,3449404,1,
3449568,3449400,1,
3449581,3449581,1,
3449581,3449689,1,
3449590,3449434,1,
3449655,3449655,1,
3449674,3449679,1,
3449679,3449501,1,
3449679,3449674,1,
3449688,3449688,1,
3449689,3449581,1,
3449689,3449689,1,
3449702,3449400,1,
3449745,3449410,1,
