→When to Create a Roundabout
In the author's editing and driving experience, once you learn [[Creating and Editing a roundabout|how to create a roundabout]], it is '''always''' the right time to replace an ''ad hoc'' traffic circle (built from regular road segments) with a proper roundabout. The voice cues produced by an ad-hoc circle can be terribly misleading, and the client display almost always looks unprofessionally sloppy. Replacing this with a roundabout is an instant, orders-of-magnitude improvement on both counts.
that a roundabout should never be used in place of an end-node on dead-end or cul-de-sac streets.
=== Locking Segments ===