Slip Lanes are bypass lanes that join the entry to the next exit and are built off the outer edge of the travel way.
Note: The slip lane requires the approach to be long enough to accommodate it. If the approach isn't long enough, extend the entry/exit arm by adjusting the blend point/deviation offsets to make sure that the road is long enough to allow for the slip lane geometry.
- Select the roundabout, then click on Modify panel
Add Slip Lane.
- Select the approach road for the slip lane.
- The Slip Lane is drawn based on the properties set in Roundabout Properties: Arm: Slip Lane.