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About Roundabouts
What is a modern roundabout?
A modern roundabout is a one-way circular intersection
with yield control of all entering traffic. The circulation is
counter-clockwise with travel speeds of 20 M.P.H.
Lane use
is very similar to a typical four-way intersection except for a slight
circular adjustment.
Typical Four-way
Intersection
Intersection with a
Circular Adjustment
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Why build a modern roundabout instead of a typical intersection?
Modern roundabouts are safer than traditional intersections, which have more conflict points and operate at higher speeds.
Studies have shown that roundabouts provide nearly a
75 percent reduction in injury accidents since the circular layout dramatically reduces the likeliness of head-on or broadside collisions.
What are some of the other benefits of modern roundabouts?
• Sight distance is dramatically improved giving motorists more time to judge and react to traffic.
• Shorter and better-planned crosswalks are located away from the busy intersection.
• There is a reduction in pollution and fuel use since traffic is always moving.
• Slower speeds and fewer stops and starts result in less traffic noise.
• There are no expensive traffic signals to install or maintain.
Roundabout
User Guide
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Snow
Fighter Operations