TrafficFlowBase Protocol Reference
- Last UpdatedMay 13, 2025
- 1 minute read
public protocol TrafficFlowBase : AnyObject
This interface provides details about a traffic flow.
For additional information about fields, refer to Traffic API v7 API Reference: Traffic API v7.
Note: This is a beta release of this feature, so there could be a few bugs and unexpected behaviors. Related APIs may change for new releases without a deprecation process.
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The reference speed in meters per second along the roadway when no traffic is present.
Declaration
Swift
var freeFlowSpeedInMetersPerSecond: Double { get }
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A value for the amount of traffic on the roadway.
The value, between 0.0 and 10.0, indicate the expected quality of travel.
A value of 0.0 indicates that there is no congestion on the roadway.
As the value approaches 10.0, it indicates increasing congestion.
A value of 10.0 is reserved to represent a blocked roadway (closure).Declaration
Swift
var jamFactor: Double { get }