System State

Frequently Asked Questions

What information is available on this site?
  • RealTime traffic conditions – Level of congestion on local corridor streets and freeways in the East Bay.
  • Live Video streams at major intersections – Typically, four cameras (North, East, South, West) are installed at each intersection. Video from Dublin, Livermore, and Pleasanton are single views that city staff control.
  • Incident and Event Information – Incident, construction and event information is provided by MTC's 511 program and is displayed on the main traffic map.
  • Links to related traffic and travel information – Links to other useful Bay Area and California based sites.
What do the Traffic Congestion colors represent?
Color codes represent the average speed of vehicles traveling along a segment of roadway at that time.
  • Red – Heavy Congestion. This represents very slow to stop and go conditions. Freeways: average speeds are below 33 miles per hour (mph). Local streets: average mid-block speeds are below 18 mph.
  • Yellow – Moderate Congestion. This represents some level of congestion with potential delays to motorists. Freeways: average speeds are between 33 - 50 mph. Local streets: average mid-block speeds are between 18 - 24 mph.
  • Green – Low Congestion. This represents little or no delay to motorists. Freeways: average speeds are 50 mph or higher. Local streets: average mid-block speeds are 25 mph or higher.
  • Grey – This segment is not in the program or is not reporting information at the present time.
How do Live Video cameras work?
Fixed cameras are installed at major intersections along the project corridor. Typically, installation includes four cameras for north, south, east and west bound directions. The video signals are converted to digital using a video streaming engine, which compresses the video using Windows(R) Media Player technology, and is then distributed over the Internet to viewers. In the cities of Dublin, Pleasanton, and Livermore the cameras are PTZ (pan-tilt-zoom) and only staff can change views.

To view the video you must have an up to date version of Windows Media Player installed on your system. Windows Media Player is available as a free download from Microsoft. Windows Media Player works on both Windows and Mac.
How current is traffic information?
Traffic information is current as of the Date & Time posted above the map. Live Video is delayed approximately 5 seconds due to stream buffering. The main traffic map page will refresh automatically every 5 minutes.
Who provides information to the site?
Information is collected from many sources. Alameda County Transportation Commission, as the lead agency, has installed monitoring stations and cameras along the project corridors to measure real-time volumes and speeds. Cameras provide real-time monitoring capability at major intersections. Incident information, freeway arterial levels of congestion are received from MTC's 511 system and Google.
What web browsers are best for this site?
This site is optimized for standards compliant browsers. The website has been tested and works with the following web browsers: Internet Explorer 5 and up for Windows and Mac, Mozilla based browsers - such as Navigator or Firefox, on Windows and Mac, and on Safari on Mac.
How are Current Travel Times estimated?
Travel times are estimated using realtime freeway segment average speed provided by MTC's 511 program.
Where can I send questions, comments or suggestions?
Alameda County Transportation Commission
1111 Broadway, Suite 800
Oakland, CA 94604

About Us


The East Bay SMART Corridors Program is an East Bay multi-modal advanced transportation management system, which provides real-time traffic conditions to the public. The intent of the East Bay SMART Corridors Program is to give easy access to local real-time conditions and empower users of the website to make better travel decisions. The East Bay SMART Program consists of two major arterial corridors in the east bay portion of the San Francisco Bay Area - the San Pablo Avenue (I-80) corridor and the Hesperian/International/E. 14th Boulevard (I-880) corridor.

Since its inception in 1995, the Alameda County Transportation Commission, the lead agency for the SMART Corridors Program, has successfully brought 25 local, regional, federal, transit, and emergency service agencies together to work cooperatively to solve regional transportation management issues at many levels. As a result of size and the number of participants, the SMART Corridors program has evolved into a multi-year, multi-phase program, implementing several major infrastructure improvements in the corridors, and has contributed to forming and strengthening interagency coordination and cooperation.

Program Goals

The goals of the East Bay SMART Corridors program are to allow the participating agencies to better manage congestion and incidents along regional routes, improve transportation mobility, efficiency and safety, and to provide timely, multi-modal local transportation information to agency transportation managers and to the public.

Program Funding

Since 2011, the SMART Corridors Program has been funded by the Vehicle Registration Fee (VRF) Local Transportation Technology Program.

The Alameda County VRF Program was approved by the voters of Alameda County in November 2010. The fee generates about $11.5 million per year through a $10 per year fee on each vehicle registration in Alameda County. Collection of the $10 per year VRF started in May 2011. The goals of the VRF Program are to sustain the County's tranportation network and reduce traffic congestion and vehicle related pollution.

Systems Development

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