52nd ST NE/57th Ave NE/58th ST NE (east of 67th Ave NE)

**Construction is tentatively planned for the summer of 2023**

The City of Marysville has been informed by multiple citizens of traffic safety concerns within the neighborhood.  Based upon these concerns, the City Traffic Safety Committee (now NTS program) has evaluated each concern including performance of traffic counts upon several neighborhood streets.  The traffic counts are summarized below:

Severity Score 6.0

Date Count Location
Average
Daily
Traffic (ADT)
Average
Speed
(mph)
85% Speed
(mph)
% greater
than 10 mph
over speed
limit
January/
February 2013
57th ST NE
(east of 58th
ST NE)
 633 27.9 31.9 4.4%
September 2016
57th ST NE
(between
72nd DR NE
& 74th DR NE)
 672 27.5 32.8 7.8%
February 2016
58th ST NE
(between
59th Ave NE
& 57th ST NE)
 303 26.2 33.3 9.5%
November 2016
58th PL NE/
76th Ave NE
(between 58th ST
NE & 56th PL NE)
 231 24.2 28.7 1.2%
November 2016
52nd ST NE
(between
71st Ave NE &
73rd Ave NE)
 1823 27.1 32.2 5.5%

The 85% speed is the commonly accepted engineering value indicating the speed at which 85% of drivers fall under and is found to be the speed at which the majority of drivers feel is a safe speed given the roadway conditions and surrounding environment. The 85% speed is also the value typically used to set speed limits and evaluate compliance with speed limits.

Residential roadways with a consistent speeding problem which may be effectively altered with traffic calming device installation typically have greater than 3% of drivers traveling at greater than 10 mph over the speed limit.

Based upon the cumulative results of the neighborhood traffic data, it has been determined that traffic calming device installation is necessary within the neighborhood.