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Public Works Department |
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- Safety- Roundabouts have been shown to reduce fatal and
injury accidents as much as 75%. The reduction in accidents is attributed to
slower speeds and reduced number of conflict points
(see Figure 1).
- Low Maintenance- Eliminates maintenance costs associated with traffic
signals which amount to approximately $5,000 per year per intersection.
- Reduced Delay- By yielding at the entry rather than stopping and waiting
for a green light, travel delay is significantly reduced. A reduction in delay
corresponds to a decrease in fuel consumption and air pollution.
- Capacity- Intersections with high traffic volume of left turns are better
handled by a roundabout than a multi-phased traffic signal.
- Aesthetics- The central island provides an opportunity to landscape and
beautify the intersection. Hence roundabouts provide a gateway and an entry
treatment to neighborhoods.
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Figure 1 |
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P.O. Box 642, Modesto, CA 95353