HERE Map Content Developer's Guide

Lane Group

Message Summary

message LaneGroup

A Physical Lane Group.

Include: physical_lane_group.proto


Field Type Label Description
segment​_​anchor​_​index uint32 repeated

Segments to which this attribute applies. 0-based index references to segment_anchor in this partition. Never empty.

identifier string   An identifier for the Physical Lane Group in the format of domain:system:type:id, for example, "here:cm:lm-lanegroup:3455277". This property is unique in a catalog.
lane_ref Reference repeated  
start_lane_group_connector_ref Reference   The start connector for the lane. Given that the start connector defines a lane's partition affinity, the start connector is in the current partition.
end_lane_group_connector_ref Reference   The end connector for the segment. The end connector may be in different partition. If the end connector is the same as the start node then the lane is a loop. If the lane is a loop and no other lanes reference its connector, then it is an isolated. If the lane is a loop and at least one other lane references its connector, then the lane is a cul-de-sac loop.
reference_geometry Line​String   The center path geometry. This would be soon replaced by packed geometry.


packed_reference_geometry string   Placeholder for center path packed geometry
left_lane_boundary_ref Reference    
right_lane_boundary_ref Reference