San Jose, CA Traffic and Road Conditions
San Jose Traffic Map
How to use the San Jose Traffic Map
Traffic flow lines: Red lines = Heavy traffic flow, Yellow/Orange lines = Medium flow and Green = normal traffic or no 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.
* In known extreme weather events or accidents, the map provider may still show green lines, even if lanes or the entire road is closed.
Traffic Alert


- Click or touch the map to move in different directions.
- If you do not see any markers on the map, try zooming in one or two levels using "+" on the top left side. However, they are not always available.
- Click an incident icon on the map to get more information.
San Jose Traffic Alerts
Caltrans District 4 on Twitter

The CMCP team is at @marinfair today from 1 PM to 4:30 PM. Stop by the @SMART booth and offer your opinions on trav… https://t.co/Z20xIzTtUm
511 SF Bay on Twitter

ONGOING: Traffic Collision With Injuries and Vehicle Fire on Southbound I-280 South of Trousdale Dr in Burlingame.… https://t.co/WusyEG6omq

UPDATE: Traffic Collision With Injuries and Vehicle Fire on Southbound I-280 South of Trousdale Dr in Burlingame. R… https://t.co/ugGk5AfXYi

UPDATE: Traffic Collision With Injuries and Vehicle Fire on Southbound I-280 South of Trousdale Dr in Burlingame. A… https://t.co/d01gDOFiSU

Traffic Collision With Injuries and Vehicle Fire on Southbound I-280 South of Trousdale Dr in Burlingame. Left Lane… https://t.co/4CWHj6dePZ

BART 20 Minute Delays in the SFO and Millbrae Directions, Due to an Earlier Equipment Problem on a Train. https://t.co/ITRwoLsl4h

UPDATE: Capitol Corridor Train 729 Has Arrived in San Jose.

UPDATE: Capitol Corridor Train 729 is Delayed 30 Minutes Approaching San Jose, Due to Earlier Signal Issues. https://t.co/ITRwoLsl4h

Capitol Corridor Train 729 is Delayed 25 Minutes Approaching Fremont, Due to Earlier Signal Issues. https://t.co/ITRwoLsl4h

UPDATE: Capitol Corridor Train 540 Has Arrived at Sacramento.
CA DOT | Caltrans QuickMap | CHP Traffic Full Site | CHP Traffic Mobile Site
Currently
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66°F |
29.99in
Barometer 61%
Humidity North 18.4mph Wind |
Partly Cloudy |