Cambridge, MA Traffic and Road Conditions


Cambridge Traffic Map

No Traffic Flow? Zoom in Closer or Refresh

How to use the Cambridge Traffic Map

Traffic flow lines: Red lines = Heavy traffic flow, Yellow/Orange lines = Medium flow and Green = normal traffic. Black lines or No traffic flow lines could indicate a closed road, but in most cases it means that either there is not enough vehicle flow to register or traffic isn't monitored. Also, If you do not see traffic flow, you can zoom in closer to reveal localized data. If you are unable to pan the map, press here (to focus off of the map) and try again.

Traffic Incidents (beta): Each dot represents a traffic event or incident such as road construction, closure or accident. At closer zoom levels, those dots can be pressed to see more info. Once a layer of traffic info has popped-up, be sure to press/click any additional arrows (e.g. 1 of 3) in the top right above the title to see other the details of the impact.

Impact Legend: Traffic and Road Incident Icon - Critical Impact Critical Traffic and Road Incident Icon - Major Impact Major Traffic and Road Incident Icon - Minor Impact Minor Traffic and Road Incident Icon - Low Impact Low

Click any alert icons on the map to see info.

Cambridge Traffic Alerts

For official Massachusetts Traffic Information, see: Mass 511 Real time traffic Map with Cameras | Real Time Traffic List By Roadway | Roadwork and Incidents Listed by Roadway

Mass State Police on Twitter

@massstatepolice twitter icon

Speed reduction extended west on Pike to Interchange 3 in Westfield. #MATraffic

Dec 5, 2020 5:11 pm UTC replyretweetfavorite
@massstatepolice twitter icon

Speed limits reduced to 40 mph on Mass Pike from Ludlow east through Central Mass. to Rt 128. Troop C responding to…

Dec 5, 2020 4:15 pm UTC replyretweetfavorite


Light Snow Rain Fog/Mist and Windy 34°F
Northwest 26.5mph
Light Snow Rain Fog/Mist and Windy

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