Protected Bike Lane is Coming! What's the problem?


"Looks like parking and loading on both sides will be removed for pretty much the length unless there is some sort of construction project alternative."

Please think about that!



Quick-Build Separated Bike Lane Process Construction Separated Bike Lane Process Publish date: April 30, 2020 Authors: Cambridge Community Development Department (CDD); Department of Public Works (DPW); Traffic, Parking, and Transportation Department (TP+T) The Cambridge Fire, Law, and Information Technology Departments provided significant support in the production of this report.

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Report Summary The Cambridge Cycling Safety Ordinance was originally passed in 2019. At that time, it set requirements for the construction of separated bike lanes when streets are being reconstructed as a part of the City’s Five-Year Plan for Streets and Sidewalks and they have been included in the “Greater Separation” category of the Bicycle Network Vision.

In 2020, the Council passed amendments to the Cycling Safety Ordinance which set ambitious requirements for the installation of approximately 25 miles of separated bike lanes within the next five to seven years. One of the requirements of the Ordinance is this report which details the impacts of installing quick-build separated bike lanes on four specific segments of Massachusetts Ave.

In order to analyze the impacts of quick-build separated bike lanes at this early level of planning, we needed to make assumptions about the design options. These included: the requirement to include separated bike lanes in the design, the need to maintain access for emergency responders, and the need to maintain access for other motor vehicles, to allow for the movement of people and goods across Cambridge. Based on these assumptions, we came up with a design for the four segments of Massachusetts Ave, which was used as the basis for analyzing impacts.

This report is organized into the following sections:

Background Information - Provides information about the Ordinance and how this report relates to it

General Impacts Analysis - Provides information about the general impacts (i.e., impacts that are not location specific) of installing quick-build separated bike lanes along the four segments of Massachusetts Ave Location-

Specific Impacts Analysis - Provides information about location-specific impacts of installing quick-build separated bike lanes along the four segments of Massachusetts Ave

Alternatives We Considered - Provides information about the two additional designs that we considered for the sections that are north of Harvard Square and were determined to not be viable

Next Steps - Information about what happens after this report has been submitted and a general overview of the steps involved in quick-build and construction projects.