This briefing note is focused on modern roundabouts – also referred to as roundabouts in this document. This briefing note is intended to provide public health actors with a frame of reference by:

1. Summarizing some of the significant characteristics of this intervention (history, design, reasons for and conditions of implementation);
2. Briefly summarizing the evaluative literature concerning the effects of roundabouts on a few public health determinants;
3. Identifying some potential courses of action for their promotion, along with some related considerations.

The briefing note takes the form of questions and answers.