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Roundabout Analysis and
Design
The development and increasing popularity of the modern
roundabout in North America is one of the most exciting recent innovations in
the field of traffic engineering. In addition to the dramatic reduction in
traffic accidents that roundabouts provide, their installation can generate
substantial reduction in delays and associated air emissions, improve
intersection capacity and pedestrian travel, and can be a key element in
improving the visual quality of roadway corridors and town centers. Not only can
properly designed roundabouts provide significant operational and environmental
benefits, the growing knowledge and evidence regarding their superior safety
performance has led many public jurisdictions to their use. Proper planning and
engineering design as well as public involvement and communication of the
roundabout option requires a detailed understanding of their operation, design,
and implementation.
As with any design concept, there are correct and incorrect ways in which
roundabouts can be designed. In addition, appropriate striping, signing, and
lighting are key to the success of a roundabout. LSC staff has the experience
and knowledge regarding roundabout design and operations necessary to ensure
that each facility operates safely and efficiently.
Products and Services
- Roundabout vs. Signal Analysis
- Capacity Analysis
- Planning and Conceptual Design
- Visual Simulation Analysis
- Horizontal and Vertical Geometric Design
- Fastest Path Analysis
- Truck Paths
- Sight Triangles
- Signing and Striping Plans
- Pedestrian and Bike Elements
- Design Peer Review Assistance
- Public Presentations, Seminars, Workshops
- Roundabout Training
Representative
Projects
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