Los Altos Traffic and Road Conditions
Los Altos Traffic Map
How to use the Los Altos 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.
Los Altos Traffic Alerts
511 SF Bay on Twitter

Capitol Corridor Train 545 is Delayed 23 Minutes Between Martinez and Richmond, Due to Earlier Mechanical Problems. https://t.co/ITRwoLKuip

UPDATE: Capitol Corridor Train 536 is Delayed 1 Hour Between Fairfield-Vacaville and Davis, Due to an Earlier Equip… https://t.co/9bFsnoAxBI

UPDATE: Caltrain Train 126 is Delayed 33 Minutes Approaching Burlingame in the Southbound Direction. https://t.co/ITRwoLKuip

UPDATE: Caltrain Train 125 is Delayed 33 Minutes Arriving to San Bruno Station in the Northbound Direction. https://t.co/ITRwoLKuip

Caltrain Train 310 is Delayed 40 Minutes Approaching Hillsdale in the Southbound Direction. https://t.co/ITRwoLKuip

Caltrain Train 410 is Delayed 36 Minutes Approaching San Carlos in the Southbound Direction. https://t.co/ITRwoLKuip

UPDATE: Caltrain Train 126 is Delayed 10 Minutes Approaching Millbrae in the Southbound Direction.

UPDATE: Caltrain Train 125 is Delayed 10 Minutes Approaching Millbrae in the Northbound Direction.

Capitol Corridor Train 549 is Delayed Departing Oakland Jack London, Due to an Equipment Problem. https://t.co/ITRwoLKuip

UPDATE: Capitol Corridor Train 536 is Delayed 1 Hour Departing Martinez, Due to an Earlier Equipment Problem. https://t.co/ITRwoLKuip
CA DOT | Caltrans QuickMap | CHP Traffic Full Site | CHP Traffic Mobile Site
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