What is the standard speed in roundabouts?

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Roundabouts are designed for slow, steady movement so you can observe entering traffic, yield appropriately, and steer smoothly through the circulating lane. Maintaining about 15 mph around the roundabout gives you enough time to judge gaps, react to other vehicles or pedestrians, and navigate the curved path without losing control. This speed helps you enter when it’s safe and then continue around the circle at a pace that’s comfortable for other drivers to merge and crosswalk users to anticipate your motion. If you go faster, you reduce your ability to spot hazards and increase the chance of a near-miss or collision; if you go much slower, you cause unnecessary delays and can frustrate other drivers trying to merge. While some larger or specially designed roundabouts might accommodate slightly higher speeds, 15 mph is the typical standard used to balance visibility, reaction time, and vehicle control.