Lateral Lane Boundary

This is a location where a Lane comes to a definitive start or end ahead of the Ego Vehicle. For a Driving Lane it may correspond to the point where it enters an Intersection. For a Non Driving Lane it could be an abrupt end anywhere in the Road. Exclusion Lanes, in particular, tend to start and end abruptly. Abrupt is relative to the concept of a Merge or a Fork where driver’s are given time to adjust to the new lane configuration. In the case of Non Driving Lanes, there is rarely a need for such a gradual transition. But Driving or Non Driving Lanes do start and end at specific locations.

Identifiers

1. ID + Road segment

Lateral Lane boundaries are numbered uniquely within a Road Segment.

Attributes

Location

The distance ahead of the Ego Vehicle where the boundary is observed.

Type: Distance