Vacaville, CA Outdoor Lighting: Billboard Lighting (2026)

290, on top of the lighting standards themselves. The photometric plan required with each application must identify anticipated light pollution measured 250 feet from the billboard's face. The lighting element intensity in the message center cannot impair the vision of freeway travelers, the actual lamps must be recessed into the cabinet so no light source protrudes past the display face, and automatic dimming circuitry has to adjust brightness as ambient light changes to cut halo effects and glare. 3 foot-candles above ambient light, measured with a foot-candle meter at a preset distance.

Messaging must stay static for at least eight seconds per image, with no flashing, scintillating, or apparent movement, and operators must be able to display regional emergency alerts. If the display malfunctions, defined to include defective pixels covering more than five percent of the screen, error messages, or unintended images, the system must switch to off or full black rather than keep running. New digital billboards also require removing at least three existing static billboard structures, or four sign faces, and the whole package needs a development agreement and Caltrans preliminary determination before it reaches the City.