California Department of Transportation
Richmond San Rafael
Coronado Bridge Carquinez
San Francisco/Oakland Bay Bridge

Materials Engineering and Testing Services

Office of Roadway Materials Testing
Electrical Testing Branch

LED CMS Pictures of Amber Alert Project

 

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Picture 1   Testing a changeable message sign at a distance of 75 feet (Time: 2:30pm, Distance: 70 feet) Intensity Level 3
Picture 2 Testing a changeable message sign at a distance of 50 feet (Time: 2:30pm, Distance: 50 feet) Intensity Level 3
Picture 3 Testing a changeable message sign with large lettering at 50 feet (Time: 2:30pm, Distance: 50 feet) Intensity Level 3
Picture 4 Testing a changeable message sign at a distance of 100 feet (Time: 2:30pm, Distance: 100 feet) Intensity Level 3
Picture 5 Testing a changeable message sign at night, at a distance of 75 feet with an intensity level of 1 (Time: 10:30pm, Distance: 80 feet) Intensity Level 1
Picture 6 Testing a changeable message sign at night and  a distance of 150 feet with an intensity level 1 (Time: 10:30pm, Distance: 150 feet) Intensity Level 1

 

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