In order to give more space to pedestrians and cyclists, many cities around the world are deploying temporary and pop-up bike and pedestrian infrastructure.

Pop-up infrastructure – sometimes called ʻtactical urbanismʼ – can take many forms, but often involves closing one vehicle lane of a road and allocating that space to cyclists or pedestrians. These projects are usually completed in a short period of time, relying on plastic posts, volunteers, paint, or other low-cost, easy to deploy solutions.