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A communication transmitted from Louis A. DePasquale, City Manager, relative to Awaiting Report Item Number 17-111, regarding the feasibility of implementing neighborways
City of Cambridge
Cambridge Arts Council – Jason Weeks, Executive Director
Community Development Department – Iram Farooq, Assistant City Manager
Department of Public Works – Owen O’Riordan, Commissioner
Traffic, Parking, and Transportation – Joseph E. Barr, Director
MEMORANDUM
To:
Louis A. DePasquale, City Manager
From: Joseph E. Barr, Director of Traffic, Parking, and Transportation
Iram Farooq, Assistant City Manager for Community Development
Owen O’Riordan, Commissioner of Public Works
Jason Weeks, Executive Director, Cambridge Arts Council
Date: February 7, 2018
Re:
Awaiting Report 17-111 – Report on the Feasibility of Implementing Neighborways
This memo is in response to Order 7 from the October 16, 2017 City Council Meeting (Awaiting
Report 17-111), which requests a report on the feasibility of implementing neighborways on streets
in Cambridge. Based on discussions amongst staff from our four departments, we have the following
information to report to the City Council.
Communities in different parts of the country have been trying new methods to engage the
community and introduce public art into the streetscape, while also working to increase safety on
smaller neighborhood streets. Broadly known as neighborways, these efforts fall into two categories,
which can be used independently or in combination:
• Public art such as murals and geometric patterns that are painted on the street. Generally,
these involve a significant amount of community engagement in developing the art
installation, and can help with community building and raising the awareness of the need to
improve traffic safety.
• More typical traffic control and traffic calming improvements aimed at trying to reduce speed
and discourage cut-through traffic on local streets. These can range from simple painted curb
extension/bulb-outs all the way to more significant infrastructure improvements such as
traffic diverters, speed humps, and pedestrian crossing islands.
To better understand the potential for these neighborways, we have researched these efforts in
other communities, specifically in Somerville (the most well-known local example), Portland, OR, and
Seattle, WA. Each of these communities is taking a somewhat different approach, based on their
specific needs and context, and the information from this research is summarized below:
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• The Somerville Neighborways Program uses paint and signs to engage neighbors in a
community process to put public art on their street with the aim of community building,
lowering traffic speeds, and increasing pedestrian safety. These are low cost projects that use
paint to create public art murals on the street as well as painted curb extensions. These
include a fairly extensive process to involve residents of the street and are usually installed
and maintained by neighborhood volunteers with the city paying for paint and supplies. So
far, data have not shown reliable reductions in speeds, although some residents may perceive
lower speeds given the new look of the street and community building involved with the
project. More recently, Somerville has considered additional measures such as speed humps,
planters, and trees. In 2017, Somerville began to implement projects that include more
traditional pavement markings to implement changes such as contraflow cycling on one-way
streets and longer-lasting painted curb extensions.
• The Portland (Oregon) Neighborhood Greenways Program is a capital construction program
that uses traffic diverters, new pedestrian crossings, speed bumps, and stormwater
infrastructure features to reduce vehicle speeds and cut-through traffic, provide safer
bicycling and pedestrian connections, improve yielding to pedestrians at busier crossings, and
encourage more biking and walking leading to greater safety. Follow-up data has shown
mixed results, but often some reduction in speeds and diversion of traffic to other streets
when diverters are used. Portland has also installed murals at intersections through their City
Repair Project, but have found that any initial effect on driver behavior wears off over time.
• The Seattle Neighborhood Greenways Program is a capital program that uses speed humps,
spot street and sidewalks changes, signs/pavement markings, and wayfinding to improve
safety, discourage cut-through traffic, protect the residential character of neighborhoods,
keep speeds low, improve yielding at crosswalk, and help people reach destinations such as
parks, schools, shops and restaurants. No data on speeds/volume are publicly available, but
the City of Seattle conducts a follow up study one year after implementation to determine if
motorists’ speeds have increased, and will consider installing speed humps if an increase does
occur.
In considering the potential for neighborways in Cambridge, it is also important to put it in context of
existing City programs and activities.
• The Cambridge Traffic Calming Program is a capital program with many goals that are similar
to the other localities cited above, but with some exceptions. Traffic calming requests are
collected and matched with streets that are listed in upcoming years of the city’s Five Year
Plan for Sidewalk and Street Reconstruction. A community process is conducted to listen to
neighborhood concerns and find traffic calming tools that may be used to reduce vehicle
speeds, improve pedestrian safety, encourage cycling, and protect the character of
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neighborhood streets. These projects are not designed to move traffic off of one street and
place it on another street. Funds from the traffic calming program are allocated per the city’s
Percent for Art public art program and used for art projects (as funds allow), which could be
used for both permanent and temporary works of art. In the past, a public art mural was
painted on the pavement at the intersection of Fayerweather Street and Vassal Lane, but was
then removed after vandalism and complaints regarding its appearance and the perceptions
of neighbors and those using the street.
• The Cambridge Arts Council formally implements a 40-year old Municipal Ordinance that
requires and supports the development of public art as part of the City’s capital investment
program. This includes projects that involve traffic calming; a good example is Jane Goldman's
New England Oasis artwork at Sheridan Square off Rindge Avenue. The Arts Council is always
interested in working with local communities that wish to use art as an opportunity for
community building and neighborhood engagement, whether within the context of the
street/sidewalk environment or elsewhere. This assistance can take the form of professional,
technical, and financial support to residents, local organizations, and business districts to
implement public art in both public and private locations. An upcoming example of this type
of project within a street context is the Home Port Ground Mural and associated artwork that
the Community Arts Center will implement on Windsor Street between School Street and
Washington Street, as part of the overall Home Port Public Art program. The City has funded
Home Port from inception via the Arts Council's Grant Program and this particular project will
receive significant funding from the FLOW Grant Program related to The Port Infrastructure
Project (www.cambridgema.gov/arts/publicart/flowgrants).
However, it is important to recognize that stand-alone art projects are not a traffic calming
tool and have not been shown to reduce speeds or calm traffic traffic, in the absence of other
traffic control measures that are specifically targeted towards achieving those outcomes. In
general, the existing traffic calming program provides an opportunity to address many of the
same goals as the neighborways program in Somerville, including both civic engagement and
enhancements aimed at calming traffic.
Based on these findings, City staff do not recommend relying on projects where paint alone is used
to achieve traffic calming goals, and do not recommend the establishment of a standalone
neighborways program, particularly given the significant resources that are already available through
the traffic calming program and the Cambridge Arts Council. However, we are very open to having
future traffic calming projects involve more significant community building art components, to
complement the physical changes designed to slow vehicle speeds. Other, standalone public art and
community building projects could also be introduced without needing to be connected to capital
construction projects, but would require approval from the Traffic, Parking & Transportation
Department prior to installation. As noted above, the Cambridge Arts Council is willing to work
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closely with community organizations that are interested in pursuing civic art opportunities in either
context.