HERE Map Content Developer's Guide

Traffic​Signal​Attribute

Message Summary

message TrafficSignalAttribute

Anchor type: Point. Possible SegmentAnchor Direction(s): Forward, Backward.

Traffic Signal indicates if a traffic light is present at an intersection. It also indicates the location of the traffic light.

The Traffic Signal information can be used for map display and for improved travel time guidance. Only Traffic Lights directly affecting the intersection are included. Traffic Lights prior to the intersection, indicating an upcoming Traffic Light intersection, are not included.

Include: advanced_navigation_attributes.proto

See Traffic Signal.

Properties

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

Indices of all segment anchors to which this attribute applies. 0-based index references to segment_anchor in AdvancedNavigationAttributesPartition. Never empty.

signal​_​location Sign​Location  

The location of the signal relative to the travel direction.