Chicanes

Office

  • Physical Address
  • Municipal Plaza Building
    114 W. Commerce, 6th Floor
    San Antonio, TX 78205   
  • Mailing Address
  • P.O. Box 839966
    San Antonio, TX 78283-3966
  • Phone
  • 210.207.8022

Staff

  • Razi Hosseini, P.E.
    Director/City Engineer
  • Anthony Chukwudolue, P.E.
    Deputy Director
  • Christie Chapman
    Assistant Director
  • Nefi Garza, P.E.
    Assistant Director
  • Luis Maltos, P.E.
    Interim Assistant Director
  • Paul Berry
    Chief Communications Officer
Curb Extensions: Chicanes

Chicanes are mid-block curb extensions that alternate from one side of the street to the other, forming S-shaped curves. This measure should be only used on residential roadways with less than 500 vehicles per day if reducing the street width to only one lane.

Chicanes

Source http://en.wikipedia.org/wiki/File:One-lane_chicane_1.jpg



Advantages

  • Narrows the roadway which may cause motorists to reduce their operating speeds and may reduce volume
  • Reduces impervious cover and has a positive environmental impact

Disadvantages

  • Curb realignment and landscaping may be costly
  • Some on-street parking may be eliminated
  • Bicyclists may briefly have to merge with vehicular traffic
  • Local street drainage may be impacted

Eligibility Considerations

  • Residential street with a lawful speed limit of 30 mph
  • Operating speeds of 35 mph or greater
  • No more than one travel lane in each direction
  • Signs and vegetation must conform to the Clear Vision Area ordinance
  • Neighborhood Association Landscape Maintenance Agreement required if landscaping is included

 

Reduced Speed          

Enhanced Safety          

Reduced Volume          

Maintenance