New signs on freeway have higher reflectivity
The state is installing highly reflective overhead traffic signs along Moanalua Freeway to save electrical costs, a Department of Transportation news release said.
High-performance reflective signs mean electricity will not be needed to light the green overhead signs, the release said. The new signs will be illuminated by ambient light and vehicle headlights.
"We are trying innovative ways to reduce our electricity costs," said Brennon Morioka, director of the Transportation Department. "If this proves to be a success, we will continue installing high-performance retro-reflective sign sheeting across our state highways."
The state paid $409,325 for the higher-grade signs, which was about $40,000 more than standard signs. The new signs will save $14,000 a year in electrical costs and $30,000 in maintenance work to replace overhead bulbs annually, officials said.
Overhead sign lights along Moanalua Freeway between the Halawa Interchange and Middle Street will begin to be shut off Monday.