The other 2,426 intersections in Houston now have working red, yellow and green light cycles. So far, the city has spent an estimated $6.31 million fixing the signals -- including costs for equipment, overtime and the hiring of more than 120 contract workers, according to Michael Marcotte, director of Public Works and Engineering.
But the work is not done, said Mayor Bill White. While 43 percent of signalized intersections are considered fully restored to pre-Ike normality, the remainder still have issues with timing or cameras. Many flow-control devices that can lengthen or shorten green signals during rush hours still need repair.
If Ike's damage had a silver lining, it is this: The city has been able to speed up the replacement of incandescent traffic bulbs with the more energy-efficient light-emitting diodes. LED bulbs use less power and last longer. The city can save about 90 percent per bulb compared to an incandescent light.
LEDs will replace incandescent traffic bulbs entirely by the end of 2009, officials said.