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Roundabouts Database
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Browse and zoom around the map to see what is currently in the database.
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in the lower right corner for more help as needed.
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Type
Status
Functional Class
Lane Type
Control Type
Previous Control Type
Other Control Type
Approaches
Driveways
Diameter (ICD)
m
City
County
State
Country
Latitude
Longitude
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Year Completed
Notes
Export to KML
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Quick Instructions
Locate roundabouts by browsing or searching the map. Click or tap the icons for a summary.
Center the map to your location by clicking
icon in the upper right of the map.
Hide or show different layers by clicking the layer selection in the bottom left of the map. The numbers are points within the current map bounds.
View roundabout details by clicking the list on the right, or the Show Details... link in the summary popup.
Contribute new roundabouts by
double clicking
on the map in the location where you want to add a roundabout.
Search and browse the full database by going to the
Index
link in the menubar.
You can save custom map viewports by positioning the map to where you want it and typing the word 'save'.
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Custom Viewport
You can use the following URL to get to the current bounds of the map.
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Filter Options
Number of Approaches
Number of Driveways
Year Completed
Control Types
Unknown
All-Way Yield
All-Way Stop
One-Way/Two-Way Stop
Signal
Uncontrolled
Other
Previous Control Types
Unknown
None (new)
Uncontrolled
One/Two-Way Yield
One/Two-Way Stop
All-Way Stop
Signal
Rotary/traffic circle
Grade Separated
Other
Other Control Types
Unknown
None
Metering Signal
Active Pedestrian Warning (flashing yellow)
Rectangular Rapid Flashing Beacon (RRFB)
Pedestrian Hybrid Beacon (PHB, HAWK)
Pedestrian Signal (red-yellow-green to drivers)
At-grade Rail Crossing Signal/Beacon
At-grade Rail Crossing Signals/Gates (controlling approach only)
At-grade Rail Crossing Signals/Gates (controlling circulatory roadway only)
At-grade Rail Crossing Signals/Gates (controlling all approaches)
Other
Functional Class
Unknown
Freeway Ramps (Grade-Separated)
Other (At-Grade)
Lane Type
Unknown
Single-Lane
Multilane (2 Lane, unspecified)
Multilane (2 Lane, 2x1 max)
Multilane (2 Lane, 2x2 max)
Multilane (3+ Lane)
Single-lane w/ Traversable Central Island
Multilane (2+ lanes) w/ Traversable Central Island
Ring junction (3+ mini-roundabouts in ring)
Roundabout Type
Unknown
Roundabout
Signalized Roundabout/Circle
Rotary
Traffic Calming Circle
Other
Status
Unknown
Existing
Removed
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