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Guides
  1. HERE Traffic API v7 Developer Guide
  2. HERE Traffic API v7 concepts
  3. Flow

Advanced Traffic

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Note

For information about the pricing of Traffic features, see the HERE Base Plan page. If you have questions about pricing, contact us.

Deep coverage flow

Deep coverage for flow can be requested by including the deepCoverage option in the advancedFeatures parameter.

Deep Coverage provides a major traffic coverage increase focused on urban roads in cities.

Lane level flow

In some cases, there is flow information available for specific lanes of a multilane roadway, mostly motorways/freeways and major roads.

Lane level for flow can be requested by including the lanes option in the advancedFeatures parameter.

The lanes parameter will enable flow defined per separate lanes heading in the same direction, this includes standard split lanes as well as the high-occupancy vehicle (HOV) lanes.

Lane level traffic can be represented for a whole roadway in the CurrentFlow object or for a sub-segment under a SubSegment object. When lane level flow is provided, the non-lane-level speed is also provided so that even when lane level traffic is requested, the client can opt to not use the lane level information.

Each lane object has the following fields:

  • laneNumbers - lane numbers use the HERE Map method of lane numbering where the left lane is 1 and each lane to the right of the left lane is numbered sequentially. For example, in a three-lane road, the left lane is 1, the center lane is 2, and the right lane is 3. Lane 1 is always the left lane, regardless of the driving side. If multiple lane numbers are presented, all lanes will have the traffic condition. Lane numbers will always be sequential.
  • laneType - populated to indicate special lane type hov, see below for details.
  • speedUncapped - uncapped speed as described for flow.
  • jamFactor - jamFactor as described for flow.

High-Occupancy Vehicle (HOV) lane

Lanes with laneType of hov are designated High-Occupancy Vehicle lanes. Their use is restricted depending on local road regulations. HOV lanes are not present in all countries.

HOV lanes are only provided when the advancedFeatures parameter contains lanes.

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