Lane connection information

#1

Hi,

Is preceding and succeeding lane information available in nuScenes map (i.e. is there a way to acquire which lanes connect to what other lanes)?

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#2

Take a look at the map tutorial (https://www.nuscenes.org/map-tutorial).
Unfortunately it is not so easy as we only provide the raw data but not the functions to take care of this.
Here is a rough strategy:

  • Figure out which road block the current lane is in.
  • Look at from_edge_line_token and to_edge_line_token to figure out which edge the road block connects to. Find other road blocks that share the same edge.
  • Get the lanes for these.