of biodiesel, Gonzalez said in a university news release.
Motorists See Red
Some Texas motorists think they're seeing too much red and not enough yellow. According to several reports, some cities are believed to be intentionally shortening the amount of time traffic signals show yellow lights. The result is more motorists getting caught on camera running red lights. And more traffic tickets mean higher revenues for the cities.
Thenewspaper.com, an online journal covering the "politics of driving," reports traffic signals in Houston, Dallas and Richland Hills may have been reprogrammed to reduce the amount of time yellow lights are displayed. The journal cites a 2005 study from the Texas Transportation Institute that found reducing a yellow signal's display time by one second at a red light camera-equipped intersection, would increase the number of traffic tickets by 110 percent.
A Houston news station's independent study found some yellow traffic signals in 40 mph-plus zones lasted 3.6 seconds, which according to the Texas Department of Transportation, is too short - though still within the legal duration of three to six seconds. However, the news station reported that almost all intersections with red light cameras maintained the same yellow light duration prior to the cameras. And in nearby Sugar Land, many intersections with red light cameras now have longer yellow lights.