Traffic Regulations

The City of Cambridge Traffic, Parking, and Transportation Department was created in 1961 by the Massachusetts State Legislature.  The act established the structure of the department, including the Traffic Regulations.  This Act authorizes the Director of the department to create, amend, or delete and part of these regulations.

The Traffic Regulations are in two major parts.  The main body provides the text of the Regulations, while the Schedules list the specific locations where each regulation is valid.  Download the PDF of the main body here. The Schedules are in table form and can be downloaded individually by choosing the appropriate item below.

If you have any questions about these Regulations or the Schedules, please click here. 

  • Schedule 2 -- Reduced Speed Limits

    Speed Zones.  Speed limit signs cannot be posted unless the street segment is on this list.  Each street segment on this list has been permitted by the MassDOT.

    Click here to download the PDF.

  • Schedule 3 -- One Way Streets

     A list of one-way street segments.

    Click here to download the PDF.

  • Schedule 4 -- Do Not Enter Regulations

    A list of street segments into which vehicles are not permitted to enter.

    Click here to download the PDF.

  • Schedule 4A -- No Turn on Red

    A list of intersections and their approaches from which a right turn on a red signal is not permitted at any time.  Right turn on red is allowed after making a full stop and yielding to any vehicle, bicycle, or pedestrian traffic unless a NO TURN ON RED sign is posted.

    Click here to download the PDF.

  • Schedule 4B -- No Bicycles on Sidewalks

    Bicycle riding is not permitted on sidewalks in the areas on this list.

    Click here to download the PDF.

  • Schedule 5 -- Through Streets

    The Through Street regulation has been deleted.  This is a record of streets once designated as Through Streets.

    Click here to download the PDF.

  • Schedule 6 -- No Parking Anytime (Driveway Clearance)

    Residents can request a small No Parking Zone around their driveway, which is commonly called "driveway clearance." 

    Click here to download the PDF.

  • Schedule 6A -- No Parking Anytime Tow-Away Zone

     Areas where parking is prohibited.

    Click here to download the PDF.

  • Schedule 6D -- Handicapped Parking Tow-Away Zone

     Residents can apply to have a parking space reserved for handicapped parking in front of their residence.  Spaces can also be added in commercial areas where needed.

    Click here to download the PDF.

  • Schedule 6E -- Reserved Parking Tow-Away Zone

    Parking spaces reserved for purposes other than for handicapped parking.

    Click here to download the PDF.

  • Schedule 7 -- No Parking Hours

    This Schedule has been discontinued.  Pease see Schedule 7A.

    Click here to download the PDF.

  • Schedule 7A -- No Parking Hours Tow-Away Zone

    Street segments where parking is prohibited during hours specified.

    Click here to download the PDF.

  • Schedule 7B -- Resident Permit Parking

    Street segments designated for Resident Permit Parking only.

    Click here to download the PDF.

  • Schedule 8 -- Snow Emergency Arteries

    When a snow emergency is declared, parking is not permitted at ay time on these street segments.  Snow emergency arteries aid the movement of fire apparatus, ambulances, police vehicles, and other emergency response vehicles in the event of heavy snow.

    Click here to download the PDF.

  • Schedule 9 -- No Stopping Tow-Away Zone

    Areas where stopping is not permitted.

    Click here to download the PDF.

  • Schedule 10 -- Time Limited Parking

    Areas where parking is permitted but limited to a specified duration.

    Click here to download the PDF.

  • Schedule 10A -- Parking Meter Rates

    The amount per hour charged at each municipal parking lot and garage and by on-street meters and machines by commercial area.

    Click here to download the PDF.

  • Schedule 11 -- Weight Limit

    Vehicle weight limits for bridges.

    Click here to download the PDF.

  • Schedule 12 -- Truck Restrictions

    Streets restricted to truck traffic.

    Click here to download the PDF.

  • Schedule 13 -- Parking Ticket Violations

    Listing of parking ticket violations and the associated fines.

    Click here to download the PDF.

  • Schedule A -- Turn Restrictions

    Intersections and approaches from which specified turns are prohibited.

    Click here to download the PDF.

  • Schedule B -- Isolated Stop and Yield

    Intersections and approaches controlled by a STOP or YIELD sign.

    Click here to download the PDF.

  • Schedule C -- Angle Parking Only

    Areas where parking is designed as angle rather than parallel.

    Click here to download the PDF.

  • Schedule E -- Schools & Public Building Entrances

    Areas in front of schools and public buildings to be kept clear of parked vehicles for the safety of pedestrians.

    Click here to download the PDF.

  • Schedule F -- Parking Prohibited on Narrow Streets (Fire Lanes)

    On narrow streets, sufficient width must be left available for fire apparatus.

    Click here to download the PDF.

  • Schedule G -- Hazardous Location

    Areas kept clear of parking for public safety reasons.

    Click here to download the PDF.

  • Schedule H -- Loading Zones

    Areas designated for loading activity only.

    Click here to download the PDF.

  • Schedule J -- Bus Stops or Stands

    Areas designated for stopped buses only.

    Click here to download the PDF.

  • Schedule K -- Taxi Stands

    Areas designated for stopped taxicabs only.

    Click here to download the PDF.

  • Schedule L -- No Parking on One Side During Snow Emergency

    Street segments where parking is prohibited on only one side during a declared snow emergency.

    Click here to download the PDF.

  • Schedule M -- Street Cleaning

    Listing of street cleaning times and day of month for each street segment.  Parking is prohibited during street cleaning operations.

    Click here to download the PDF.

  • Schedule N -- Parking Meters Installation

    Street segments with parking meters.

    Click here to download the PDF.

  • Schedule O -- Riding on Roadways -- Bike Lanes

    Street segments with bike lanes.

    Click here to download the PDF.

  • Schedule P -- Riding on Roadways -- Contra-flow Bike Lanes

    Street segments with contra-flow bike lanes.

    Click here to download the PDF.

  • Schedule Q -- Shared Streets

    Street segments in which vehicle traffic mixes with bicycle, pedestrian, and loading activities.

    Click here to download the PDF.