# Polyline Direction
To make lane annotation more intuitive and accurate, directional arrows now appear during polyline creation.
{% hint style="success" %} 
Helps ensure correct lane flow and orientation, especially for traffic-related annotations.
{% endhint %}
***
## Benefits
* Reduces confusion about line direction.
* Improves annotation consistency for downstream models.
* Speeds up QA by making intent visually obvious.
***
## Steps to Use Polyline Direction
{% stepper %}
{% step %}
#### Draw a polyline
As the polyline is drawn, arrows will indicate the direction of the line.
{% endstep %}
{% step %}
#### Verify orientation
This helps ensure correct lane flow and orientation, especially for traffic-related annotations.
{% endstep %}
{% endstepper %}
### Reverse Direction
After drawing the polyline, right-click to open the contextual menu and instantly reverse the direction. This change will be applied across the entire sequence.
### Hide Direction
Once the polyline is created, the same contextual menu lets you hide directional arrows to minimize visual clutter during annotation.
{% hint style="success" %} Directional arrows are automatically hidden when the annotation is not selected.
{% endhint %}
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