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RESOLUTION NO.3 9 4 6
A RESOLUTION OF THE CITY COUNCIL OF THE
CITY OF AUBURN, WASHINGTON, APPROVING
THE NEIGHBORHOOD TRAFFIC CALMING
PROGRAM
WHEREAS, the City of Auburn not unlike other cities, has growing
concerns related to traffic congestion and the flow of traffic in certain
neighborhoods; and
WHEREAS, in order to maximize efforts to control speed and volumes, so
as to provide safe streets for the citizens and travelers of Auburn, it is appropriate
that the City adopt and implement a program from neighborhood traffic calming.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF AUBURN,
HEREBY RESOLVES as follows:
Section 1. That the neighborhood traffic calming program, as identified
on the Exhibit attached hereto, marked as Exhibit "A" and incorporated herein by
this reference, be, and the same hereby is, approved in substantial conformity
therewith.
Section 2. That the Mayor is authorized to implement such
administrative procedures as may be necessary to carry out the directives of this
legislation.
Section 3. That this Resolution shall take effect and be in full force
upon passage and signatures hereon.
Dated and Signed this ;2/ Jday of'---;1~ ,2005.
Resolution No. 3946
November 15, 2005
Page 1 of 2
ATTEST:
f O(u(iQit~d~-/
"
DanieHe E. Daskam,
City Clerk
Resolution No. 3946
November 15, 2005
Page 2 of 2
Y3\~
PETER B. LEWIS
MAYOR
i 1;/ 1
AUBuRN
WASHINGTON
Neighborhood Traffic Calming Program
"Traffic Calming is the combination of mainly physical measures that reduce the negative
effects of motor vehicles, alter driver behavior and improve conditions for non-motorized
street users".
Adopted by ITE International, 1997
NEIGHBORHOOD TRAFFIC CALMING
PHASE I-When a Citizen of Auburn submits a neighborhood traffic complaint about a residential location
(usually related to speeding and/or safety) it initiates the beginning of "Phase I" of the Neighborhood
Traffic Calming Program (NTCP) During the NTCP First Phase, transportation staff will review the
situation in the neighborhood: data will be collected from speed studies and accident histories.
After data is collected and the data confirms there is a problem, staff will work with the
neighborhood utilizing the following "Tool Box" of items:
. Review effectiveness of current signage and update signage as needed:
o Speed limit signs
o Dead End Signs
o No Parking Signs
o Stop or Yield Signs
o Other signs as needed or requested.
o Stationary Radar Signs
. Review pavement markings and refresh or install new as needed:
o Adequate Crosswalks
o Stop Bars Refreshed
o School Zone Markings
o Lane Narrowing using Striping.
. Target police enforcement
. Review Sight Distance Concerns:
o Trim brush if necessary
o Review parking restrictions.
A study will be performed approximately 6 month after implementation off Phase I. If traffic safety in the
neighborhood does not improve during Phase I, Phase II (physical measures changing the roadway
environment, such as traffic circles or speed humps) may be considered.
City of Auburn Neighborhood Traffic Calming Program
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PHASE II-After Phase I items have been implemented, City staff will again collect data, and then compare
it to the previously gathered information. If residents still have concerns about traffic and the location
meets the City's guidelines, then the location will be reviewed for possible installation of physical devices.
The City has developed a "Tool Box" of items that may be selected from depending on need,
neighborhood feedback, cost, road classification, topography of the area, and geometry of the
roadway. The following is a list of items that may be considered (each one has advantages and
disadvantages):
. Speed Tables
. Speed Humps
. Speed Cushions
. Traffic Circles (not Round-a-Bouts)
. Chicanes
. Bulb Outs
. Neighborhood Entry Treatments
. Stationary Radar Signs
. Ped Islands (w/ or w/o detection)
Each of the devices is unique and specific guidelines need to be established for when and where they
may be used. Neighborhood meetings are required and the majority of residents must support the
proposed improvements before the City will proceed with the construction of any physical device.
This program has been developed with local neighborhood streets in mind. In some cases it may be
appropriate to evaluate classified streets such as collectors or arterials. In those cases additional and/or
different criteria may apply.
FUNDING
PHASE I: With exception to the Stationary Radar Speed Sign (approximately $3000 to $6000) all PHASE I
devices are 100% funded by the City, and costs are considered minimal. Stationary Radar Signs will be
paid 100% by the neighborhood.
PHASE II: They City has $50,000 budgeted for 2006 for implementation of neighborhood traffic calming
devices. If the City has verification of need, the City will fund the improvements 100%. If there is no
verification of a need, but a neighborhood perception remains, and the neighborhood desires to have
such devices installed, the neighborhood will be responsible for funding said devices. Criteria:
. High accident location - accidents must be types that would have been prevented had the traffic
calming devices been in place.
. 85'h percentile speeds on road are equal to or in excess of 10 mph over the posted speed limit;
OR
. 10 or more drivers per 24 hours driving at maximum speeds in excess of 15 mph over the posted
speed limit; OR
. Evidence of cut through traffic from parallel high volume arterials.
City of Auburn Neighborhood Traffic Calming Program
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Speed Tables
DESCRIPTION:
Speed Table vertically deflects vehicles. They are typically 22 feet wide, as long as the roadway is wide,
and 3-4 inches high. They are designed to slow vehicles down to approximately 25 mph.
ADVANTAGES:
. Reduces vehicle speed. More
effective if used in a series at 300' to
500' spacing or in conjunction with
other traffic calming devices.
. Can reduce vehicular volumes.
. Minimal restrictions to on-street
parking.
. Requires minimum maintenance.
DISADV ANT AGES:
concerns.
. May divert traffic to parallel streets that do not have traffic calming measures, creating other traffic
. Impacts emergency response vehicles and potentially their response times.
. Not aesthetically pleasing.
COST: Moderate ($2000 to $5000 each.)
CRITERIA for SPEED Tables:
. Local Streets Only
. Fire and Police must approve the locations, so as to accommodate emergency response.
. Cannot be used on streets with a significant grade.
. 85th percentile speeds on road are equal to or in excess of 10 mph over the posted speed limit;
OR
. 10 or more drivers per 24 hours driving at maximum speeds in excess of 15 mph over the posted
speed limit; OR
. Evidence of cut through traffic from parallel high volume arterials.
. 40% of residents on street must participate in voting process 70% of which need to be in support
of the installation. Boundaries will be identified on a case by case basis and may include
residents up to 4 blocks in any direction from the proposed device.
City of Auburn Neighborhood Traffic Calming Program
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11/16/05
Speed Humps
DESCRIPTION:
Speed Humps vertically deflect vehicles. They are typically 12 feet wide, as long as the roadway is wide,
and 3 inches high. They are designed to slow vehicles down to approximately 20 mph.
ADVANTAGES:
. Reduces vehicle speed. More effective if
used in a series at 300' to 500' spacing or in
conjunction with other traffic calming
devices.
. Can reduce vehicular volumes.
. Minimal restrictions to on-street parking.
. Requires minimum maintenance.
DISADVANTAGES:
concerns.
. May divert traffic to parallel streets that do not have traffic calming measures, creating other traffic
. Impacts emergency response vehicles and potentially their response times.
. Not aesthetically pleasing.
COST: Moderate ($1500 to $3000 each.)
CRITERIA for SPEED HUMPS:
. Local Streets Only
. Fire and Police must approve the locations, so as to accommodate emergency response.
. Cannot be used on streets with a significant grade.
. 85th percentile speeds on road are equal to or in excess of 10 mph over the posted speed limit;
OR
. 10 or more drivers per 24 hours driving at maximum speeds in excess of 15 mph over the posted
speed limit; OR
. Evidence of cut through traffic from parallel high volume arterials.
. 40% of residents on street must participate in voting process 70% of which need to be in support
of the installation. Boundaries will be identified on a case by case basis and may include
residents up to 4 blocks in any direction from the proposed device.
City of Auburn Neighborhood Traffic Calming Program
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/16/05
Speed Cushions
DESCRIPTION:
Speed cushions are made out of asphalt and are about 3 inches in height. The length of the cushion is
about 10ft. The spaces between the cushions allow emergency vehicles to partially straddle the device.
ADVANTAGES:
. Reduces vehicle speed. More effective if
used in a series at 300' to 500' spacing or
in conjunction with other traffic calming
devices.
. Can reduce vehicular volumes.
. Minimal restrictions to on-street parking.
. Does not restrict access for residents.
. Requires minimum maintenance.
. Minimal impact to emergency response
times for fire trucks and motorcycle police
officers.
DISADVANTAGES:
. May divert traffic to parallel streets that do not have traffic calming measures, creating other traffic
concerns.
. May increase emergency vehicle response times.
. Not aesthetically pleasing.
. Motorbikes can use the "spaces" to avoid the device.
COST: Moderate ($1500 per each to $3000 per each.)
CRITERIA for SPEED CUSHIONS:
. Local Streets Only
. Fire and Police must approve the locations, so as to accommodate emergency response.
. Cannot be used on streets with a significant grade.
. 85th percentile speeds on road are equal to or in excess of 10 mph over the posted speed limit;
OR
. 10 or more drivers per 24 hours driving at maximum speeds in excess of 15 mph over the posted
speed limit; OR
. Evidence of cut through traffic from parallel high volume arterials.
. 40% of residents on street must participate in voting process 70% of which need to be in support
of the installation. Boundaries will be identified on a case by case basis and may include
residents up to 4 blocks in any direction from the proposed device.
City of Auburn Neighborhood Traffic Calming Program
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Traffic Circles
DESCRIPTION:
Traffic circles are raised islands constructed at the center of intersections. Treatments include decorative
paving such as stamped asphalt, or landscaping. Traffic circles require drivers to slow to a speed that
allows them to comfortably maneuver around them. Motorists travel in a counter-clockwise direction
around the circle. Traffic circles are "yield upon entry" meaning that vehicles in the circle have the right of
way and vehicles entering the circle must wait until the path is clear. Design Standard will most likely vary
between retrofit design and new construction.
ADVANTAGES:
. Reduces vehicle speed.
. Reduces vehicle conflicts at uncontrolled
intersections.
. Provides equal access to intersection for
all drivers.
. Does not restrict access to residents.
. Traffic circles can improve the aesthetics
of a street.
. Can be used on streets with grade challenges that would prevent other types of treatments such as
speed humps and cushions.
DISADV ANT AGES:
. Some curbside parking must be prohibited at each corner of the intersection.
. May increase emergency response time. The construction of a mountable curb minimizes this.
. May impact access for large trucks and longer buses.
. May increase conflicts with cyclist and pedestrians.
. May divert traffic to parallel streets.
COST: High ($7500 to $15,000 per each location).
CRITERIA for TRAFFIC CIRCLES:
. Must be installed at an intersection of two Local Streets Only (either T intersection or 4 way)
. Fire and Police must approve the locations, so as to accommodate emergency response.
. 85th percentile speeds on road are equal to or in excess of 10 mph over the posted speed limit; OR
. 10 or more drivers per 24 hours driving at maximum speeds in excess of 15 mph over the posted
speed limit; OR
. Evidence of cut through traffic from parallel high volume arterials.
. 40% of residents on street must participate in voting process 70% of which need to be in support of
the installation. Boundaries will be identified on a case by case basis and may include residents up
to 4 blocks in any direction from the proposed device.
City of Auburn lv'eighborhood Traffic Calming Program
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DESCRIPTION:
11/16/05
Chicanes
A chicane is a series of two or more staggered curb extensions on alternating sides of the roadway.
Horizontal deflection requires motorists to reduce speed through the chicane. A raised island is typically
added to the center of the road to prevent motorist from crossing the centerline. As with the Traffic
Circles, either landscaping or decorative paving may be used.
ADVANTAGES:
. Reduces speed.
. Minimal impact to emergency vehicles.
. Chicanes can improve the aesthetics of a street.
. Can be used on streets with grade challenges that would prevent other types of treatments such
as speed humps and cushions.
DISADVANTAGES:
. May restrict access to residents.
. Curbside parking must be
prohibited.
. Maintenance responsibility, if
landscaped.
. May divert traffic to parallel
streets.
. May increase conflicts with
cyclists and pedestrians.
COST: High ($22,500 - $37,000 each)
CRITERIA for CHICANES:
. For use on Local Streets and Collectors.
. Fire and Police must approve the locations related to emergency response.
. 85th percentile speeds on road are equal to or in excess of 10 mph over the posted speed limit;
OR
. 10 or more drivers per 24 hours driving at maximum speeds in excess of 15 mph over the posted
speed limit; OR
. Evidence of cut through traffic from parallel high volume arterials.
. 40% of residents on street must participate in voting process 70% of which need to be in support
of the installation. Boundaries will be identified on a case by case basis and may include
residents up to 4 blocks in any direction from the proposed device.
City of Auburn Neighborhood Traffic Calming Program
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DESCRIPTION:
11/16/05
Bulb Outs
The intersection is narrowed by extending the curbs toward the center of the roadway or by building
detached raised islands to allow for drainage and bike lane passage. Bulbs outs are traditionally used at
intersections, but can also be used in mid-block locations with heavy pedestrian volumes.
ADVANTAGES:
. Reduces crossing distance for
pedestrians.
. May reduce cut-through traffic.
. Minimal impact to emergency
vehicles.
. Can be aesthetically pleasing.
DISADVANTAGES:
. Curbside parking must be prohibited at adjacent residences.
. Minimal impact to mid-block speeding, unless a bulb out was placed mid-block.
. Maintenance responsibility, if landscaped.
. May impact access for large trucks and longer buses.
COST: High ($16,500 each)
CRITERIA for BULB OUTS:
. Bulb outs as a solution are preferred as part of new construction rather than retrofitting an
existing situation, but they not exclude as a solution for existing streets.
. Either a local or collector street.
. Street width must be wide enough to allow two lanes of traffic to pass.
. Must be approved as part of the plat approval process.
City of Auburn Neighborhood Traffic Calming Program
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11/16/05
Entry Treatments
DESCRIPTION:
There are two main types of Entry Treatments: a raised island in the center of a roadway, or a decorative
pavement treatment such as stamped asphalt. Either treatment alerts the driver of an entrance to a
neighborhood.
ADVANTAGES:
. Notifies drivers that they are entering a neighborhood or residential area,
. Opportunity for landscaping and/or neighborhood signs.
. Can discourage non-local traffic.
. Minimal impact to emergency vehicles.
. Can be aesthetically pleasing.
. Minimal impacts to access to residents.
DISADVANTAGES:
. May require parking removal near the treatment
. Maintenance responsibility
. Matching decorative paving during repair work, such as utility trenching.
COSTS: Moderate to High
CRITERIA for ENTRY TREATMENTS:
. Must be an entry onto a Local Street.
. 40% of residents on street must participate in voting process 70% of which need to be in support
of the installation.
City of Auburn lVTeighborhood Traffic Calming Program
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Stationary Radar Sign
DESCRIPTION:
Stationary Radar Signs direct a motorist's attention to the posted speed limit and displays the driver's
speed on a message board. Some signs once a certain speed is reached (e.g. 10 mph over the limit), will
flash "SLOW DOWN" and display the speed limit, rather than the actual driving speed.
A: For drivers complying with the speed limit - steady display.
B: For drivers going 1 to 9 mph over the speed limit - flashing display.
C: For drivers going 10 or more mph over the speed limit - flashing display.
ADVANTAGES:
. Notifies driver of speed.
. Can be used on streets with grade challenges that would prevent other types of treatments such
as speed humps and cushions.
. Zero impact to emergency vehicles.
. Slows drivers 5 to 8 mph at the sign location.
. No impact to on street parking.
. Flexible in the location/placement.
. Easy to remove.
DISADVANTAGES:
. Only isolated impacts to speeding vehicles. Potential for impact to lessen as motorist become
accustomed to seeing the sign.
. If simpler radar sign is used (with "your speed" display only), drivers may try to see how high they
can register on the sign.
. Needs power.
COST: Moderate ($3000 to $6000 each)
City of Auburn Neighborhood Traffic Calming Program
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