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Director's Office
Municipal Plaza Building
114 W. Commerce
San Antonio, Texas 78205
Main Line: (210) 207-8022
Fax: (210) 207-4406

Medians: Traffic Circles

Traffic circles are raised, circular islands that are used within intersections in residential areas in an effort to reduce vehicle operating speeds.

Traffic Circle


  • Effective in reducing vehicle speeds and improving safety at intersections
  • Provides traffic calming devices for two or more streets


  • Large vehicles may have difficulty negotiating the center island
  • Some on-street parking may be eliminated
  • Ineffective designs may impede emergency vehicle response time
  • May not eliminate left-turn cut-through violations

Eligibility Considerations

  • Signs and vegetation must conform to the Clear Vision Area ordinance
  • Neighborhood Association Landscape Maintenance Agreement required if landscaping is included


Reduced Speed One Star   Reduced Volume No Star
Enhanced Safety One Star   Maintenance Three Star

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