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Traffic light#

Behavior velocity planner's traffic light module plans velocity according to the traffic light status. In order to operate that, we will add traffic light attribute to our lanelet2 map.

Creating a traffic light regulatory element#

In order to create a traffic light on your pointcloud map, please follow these steps:

  1. Please select lanelet which traffic light to be added.
  2. Click Abstraction button on top panel.
  3. Select Traffic Light from the panel.
  4. Click on the desired area for inserting traffic light.

You can see these steps in the traffic-light creating demonstration video:

Testing created the traffic light element with planning simulator#

After the completing of creating the map, we need to save it. To that please click File --> Export Lanelet2Maps then download.

After the download is finished, we need to put lanelet2 map and pointcloud map on the same location. The directory structure should be like this:

<YOUR-MAP-DIRECTORY>/
 ├─ pointcloud_map.pcd
 ├─ lanelet2_map.osm
 └─ map_projector_info.yaml

The map_projector_info.yaml file tells Autoware the projection of the map. Write the MGRS grid that you entered when you created the Lanelet2 map in Vector Map Builder:

projector_type: MGRS
vertical_datum: WGS84
mgrs_grid: <YOUR-MGRS-GRID> # for example, 35TPF

Use the vertical datum of your point cloud map. For a point cloud map from the UTM to MGRS converter, use EGM2008. If the file does not exist, Autoware reads the MGRS grid from the Lanelet2 map. This fallback is deprecated.

If your .osm or .pcd map file's name is different from these names, add the lanelet2_map_file and pointcloud_map_file arguments to the launch command:

ros2 launch autoware_launch planning_simulator.launch.xml map_path:=<YOUR-MAP-FOLDER-DIR> vehicle_model:=<YOUR-VEHICLE-MODEL> sensor_model:=<YOUR-SENSOR-KIT> lanelet2_map_file:=<YOUR-LANELET-MAP-NAME>.osm pointcloud_map_file:=<YOUR-POINTCLOUD-MAP-NAME>.pcd

Now we are ready to launch the planning simulator:

ros2 launch autoware_launch planning_simulator.launch.xml map_path:=<YOUR-MAP-FOLDER-DIR> vehicle_model:=<YOUR-VEHICLE-MODEL> sensor_model:=<YOUR-SENSOR-KIT>

Example for tutorial_vehicle:

ros2 launch autoware_launch planning_simulator.launch.xml map_path:=$HOME/autoware_data/maps/tutorial_map/ vehicle_model:=tutorial_vehicle sensor_model:=tutorial_vehicle_sensor_kit vehicle_id:=tutorial_vehicle
  1. Click 2D Pose Estimate button on rviz or press P and give a pose for initialization.
  2. Click Panels -> Add new panel, select TrafficLightPublishPanel, and then press OK.
  3. In TrafficLightPublishPanel, set the ID and color of the traffic light.
  4. Then, Click SET and PUBLISH button.
  5. Click 2D Goal Pose button on rviz or press G and give a pose for goal point.
  6. You can see the traffic light marker on the rviz screen if you set the traffic light color as RED.

For more information about TrafficLightPublishPanel, see the traffic light recognition simulation.

Traffic Light markers on rviz:

traffic-light-test

Traffic light test on the created map.

You can check your traffic light elements in the planning simulator as this demonstration video: