Posted: August 10, 2018
Last modified: August 10, 2018
In addition to reconstructing the roadway, the I-4 Ultimate project is improving the motorist experience by installing new lighting features throughout the project limits.
The new lights are LEDs, and they are designed to be more energy efficient, easier to maintain or repair and cover a greater area than existing lights.
There will be 2,519 lighting fixtures towering 40 to 45 feet above the mainline interstate and ramps with hundreds more on secondary and arterial roadways.
The lighting design and placement aims to provide a steady level of illumination for motorists and an even distribution of light over the roadway.
Spillover of roadway lighting will be nominal, ensuring the light stays on the mainline and ramps and not onto adjacent properties.
According to the U.S. Department of Energy, LED lights save a significant amount of energy. They may use at least 75 percent less energy and last up to 25 times longer than traditional incandescent lights. LED lights also operate at a cooler temperature, so they preserve and use that energy rather than burning it as heat.
There are 26 variations of poles, which include differences in height and overhang. Height and overhang depend on where the pole is placed and how far the light should spread out or be concentrated.
Each lighting fixture has either four or six lighting modules, which determine its brightness and coverage
The mainline generally will have six-module light panels with a 315-watt output while the ramps to and from the interstate will have four-module light panels with a 213-watt output.
Permanent lighting is operational in certain portions of the project such as near the Grand National Drive overpass and along westbound Interstate 4 (I-4) near the Michigan Street interchange.