Sherwood Forest Neighborhood

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 6.5/9.0

Date Location
Average Daily
Traffic (ADT)
Average Speed
85% Speed
% of vehicles
traveling greater
than 10 mph over
25 mph speed limit
December 2013
128th St. NE
(east of State
2970 29.4 34.9 8.9%
November 2014
126th Pl. NE
(east of 48th
Ave. NE)
340 25.3 29.3 2.6%
June 2016
43rd Ave. NE
(north of 125th
Pl. NE)
1546 28.6 33.9 11.8%
November 2016
123rd Pl. NE
(between 122nd
Pl. NE & 48th
Dr. NE)
559 26.2 31.9 6.9%

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 Sherwood Forest neighborhood.

A survey was performed in June of 2019, in which all properties were solicited within 600' of a proposed traffic calming device or whose sole access(es) would be impacted by traffic calming device installation.  To move forward with the installation, greater than 60% of respondents were required to tally "yes" for the proposal.  Based on the survey, 63% favored the project consisting of four (4) traffic circles and two (2) speed tables.

This NTS project included the installation of four (4) traffic circles proposed at the following intersections: 

and two (2) speed tables upon 128th ST NE between State Ave and 43rd Ave NE.

Project Map