Grand Street
Safety Project
Supplemental Information and Examples from NACTO,
FHWA, and various cities’ design guidelines showing chicanes as a common traffic calming device to increase safety
Federal
Highway
Administration
Traffic Calming
26. Chicanes
Chicanes create a horizontal
diversion of traffic and can be
gentler or more restrictive
depending on the design.
National
Association of
City
Transportation
Officials
“Offset curb extensions on
residential or low volume
downtown streets create a
chicane effect that slows
traffic speeds considerably.
“A chicane configuration
may also be created
using a “checkered”
parking scheme.”
City of
San Francisco
Street Design
Guide
“On streets with space for parking on only one side, chicanes can be created by alternating parking from side to side.” New York City
Street Design
Guidelines
“Forces drivers
to drive more
slowly and
with greater
awareness,
particularly at
mid-block
locations”
San Francisco,
CA
with
alternating
parking
San Francisco,
CA
w/ median &
trees.
Berkeley, CA.
MilviaStreet
Boston, Mass.
Boston, Mass.
Enhanced with
landscaping