Series 110 2009 ORDINANCES/RESOLUTIONS
Section 110-434; Policy Res. 182-09; Establishing a policy on setting speed limits on residential streets in the City of Columbia
Council Bill No.
A POLICY RESOLUTION
establishing a policy on setting speed limits on residential streets in the City
WHEREAS, the Public Works Department studies speed limits
and recommends speed limit
ordinance changes to City Council on streets in the City of Columbia; and
WHEREAS, speed limits are set in Section 14-223 of the City
Code and signed accordingly;
WHEREAS, a consistent method of setting speed limits and
placing signs will minimize speed
and traffic on low volume residential streets and facilitate the safest possible traffic movement on
collector and arterial streets; and
WHEREAS, inconsistent and artificially low speed limits on
collector and arterial streets
encourage high speed and cut-through traffic on residential streets.
NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE
COLUMBIA, MISSOURI, AS FOLLOWS:
SECTION 1. For the purpose of establishing
speed limits, residential streets are defined as:
1. Streets with only residential dwellings
accessing the road;
2. Streets with average daily traffic
volumes less than 2,000; and
3. Streets that are not included as collectors or arterials
in the Columbia Area Transportation
Study Organization (CATSO) Roadway Plan.
SECTION 2. Speed limits on residential
streets should be 25 miles per hour. If fifty percent
(50%) of the residents on a street petition the City for a speed limit higher than 25 miles per
hour, the City Council will consider raising the speed limit as high as the 85
SECTION 3. All streets that have a speed limit higher
than 25 miles per hour should have
publicly funded speed limit signs.
SECTION 4. Residential streets with more than 1,000
vehicles per day should have at least
one publicly funded enlarged speed limit sign with a yellow border. The sign will be placed to
allow motorists to view the sign while entering a neighborhood. The border may have a message
such as, KID FRIENDLY or, SET THE PACE.
SECTION 5. Residential streets with more than 500 vehicles
per day, but less than 1,000
vehicles per day, should have at least one publicly funded speed limit sign. Additional speed
limit signs or enlarged speed limit signs with a yellow border may be installed by the Public
Works Department if residents on the street are willing to reimburse the City for the cost of
additional or upgraded signs.
SECTION 6. Residential streets with less than 500 vehicles
will not have publicly funded
speed limit signs (the speed limit on all residential streets is 25 miles per hour unless posted
otherwise). Speed limit signs or enlarged speed limit signs with a yellow border may be installed
by the Public Works Department if residents on the street are willing to reimburse the City for
the cost of the signs.
SECTION 7. Streets with more than 2,000 vehicles per
day should have speed limits based on
an engineering study. A main component of an engineering speed study is the 85
speed. Studies have documented that on major roadways, collisions are minimized when speed
limits are set at the 85th percentile speed. Studies have also shown that artificially
cause motorists to leave major roadways and cut-through on residential streets. The posted speed
limit should be in increments of 5 miles per hour. The speed limit may be 25 percent (25%)
lower than the 85th percentile speed if residential driveways require motorists to back into
ADOPTED this 17th day of August, 2009.