Traffic
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This guide will provide you with instructions on how to enable or disable traffic incidents on your route, along with guidance on requesting a list of traffic incidents specific to your route. Additionally, we will elaborate on the various types of traffic incidents that are supported and may be encountered during your journey.
Project set up
- Before proceeding with this guide, follow the Quickstart guide for Maps and Quickstart guide for Navigation to create the
TomTomMap
andTomTomNavigation
objects, which are essential for use with the Navigation Visualization module responsible for displaying on-route traffic incidents. - Add the Navigation Visualization dependency in the
build.gradle
of your application module and synchronize the project:implementation("com.tomtom.sdk.maps.visualization:navigation:1.20.1") - Use the
NavigationVisualizationFactory.create
method to create theNavigationVisualization
object:navigationVisualization =NavigationVisualizationFactory.create(tomTomMap, tomtomNavigation)
Displaying traffic incidents on the route
To display traffic incidents on the route, call the displayRoutePlan
function with a RoutePlan
:
navigationVisualization.displayRoutePlan(routePlan)
By default, traffic incidents on the route are enabled. However, if you want to disable them, you can do so by using setTrafficIncidentsEnabled
. To retrieve the list of displayed TrafficIncident
s on a route, use getTrafficIncidents
like this:
navigationVisualization.getTrafficIncidents(route)
Traffic incident types
We currently offer support for four types of traffic incidents on the route, which include:
Jam incidents denote regular traffic congestion, identifiable by a numeric marker that represents delays in minutes. These delays can fall into three categories:
Minor
Moderate
Major
Road works can come in four different magnitudes:
Unknown
Minor
Moderate
Major
While we typically avoid routing through closed roads, there might be situations where users deviate from the original route to a closed road. The RoadClosed incident has no associated magnitude, unlike other incident types.
Incidents that do not fall into the categories mentioned earlier are represented under the "unknown" category. Similar to road works, they can also be categorised into four different magnitudes:
Unknown
Minor
Moderate
Major
Traffic style customisation
During the creation of NavigationVisualization
through the NavigationVisualizationFactory.create
, StyleConfiguration
can be passed in to define custom stylization. By default, if it’s not passed in, the default style will be used. To define a custom stylization for traffic, see RouteTrafficIncidentStyle
. The custom style object can be passed as:
1navigationVisualization =2 NavigationVisualizationFactory.create(3 tomTomMap,4 tomtomNavigation,5 styleConfiguration = StyleConfiguration(routeTrafficIncident = customTrafficStyle),6 )
Next steps
Since you have learned how to display traffic incidents on the route, here are recommendations for the next steps: