Table 2 Sample edge list for small part of Boston’s road network.

From: A protocol to convert spatial polyline data to network formats and applications to world urban road networks

XCoord YCoord START_NODE END_NODE EDGE LENGTH
329880.2 4594299 1 2 1 14.64321
329880.2 4594299 1 3 2 24.43203
329880.2 4594299 1 6 3 272.6202
329874.6 4594286 2 1 1 14.64321
329904.6 4594298 3 1 2 24.43203
329793 4594549 6 1 3 272.6202
329793 4594549 6 7 5 82.32773