HomeNewsWork to begin in March to remove more purple streetlights on Milwaukee highways

Work to begin in March to remove more purple streetlights on Milwaukee highways

100 2024-02-27

On Friday, July 2, 2021, a Perple street lamp can be seen near the 400th block of the 15th streets of Milwaun.Many residents noticed the purple street lights on the inter -state road of the entire Milwa base.About three years ago, the LED bulb installed by the US Department of Transportation had a technical failure and will be replaced.Angela Peterson


Purple street lights have returned to the Milwa base area, or may never leave after appearing on the highway over the past few years.

The Ministry of Transportation of Wisconsin was initially predicted in 2023 that there were only less than 100 units left in the state and would be replaced soon, but the spokesman of the agency said on Thursday, "More faults occurred in the summer of 2023, which exceeded this exceeding, which exceeded it beyond.expected."

The Ministry of Transport installed a batch of LED lights in 2018, mainly in the southeast.At least 300 lights began to change from white to purple.This effect will cause inter -state highways to be lit purple at night, and these lights are highly concentrated.

When the Ministry of Communications announced the demolition and replacement of these lights, many people told the Poster that they prefer this lighting solution.Some readers say that in the middle of the night, their eyes are easier, while others think that purple is cooler than white.

"Save Ziguang!" A reader wrote.

At that time, a spokesman for the Ministry of Communications said: "We will not implement the purple street lighting plan. ... I did not expect someone to be so attached to them."Safety illuminates the state highway.

According to the Ministry of Communications, the reason for the transition from white to purple from white to purple is related to the phosphorus coating around a single diode.Because the LED lights of the highway naturally use the blue LED and the coating is used to shoot blue light into white, the coating is placed there.

The fluorescent powder coating has been peeled off, exposing the blue of LED.This problem causes the indicator light to change from white to purple.According to the manufacturer, the adhesion of the coating failed.

Ram Cashadry, a professor of materials science at the University of California, San Barbara, told "Science Americans" that phosphoric body technology is reasonable."us"" Over the years, there are no problems, "he said.About 10 years ago, Wisconsin transitioned to LED lights.

According to experts interviewed by "Scientific Americans", due to continuous operation, vibration of past cars, and even the downward traction of gravity to the fluorescent powder layer, the heat accumulation inside the lamp may be peeled off.

The manufacturer providing fault lights in the Milwan area is an American electrical lighting company, a subsidiary of the keen brand lighting company.The Ministry of Transport said in 2023 that the US electrical lighting company paid all the costs of replacing the fault light, including the transportation control of materials, labor and each product warranty period.

A spokesman for the Ministry of Communications Dan Sales said on Thursday that as more and more purple street lights appear, the US Power Corporation will continue to bear cost.

Sales said that the work of changing street lights will begin in March and is expected to be completed by the end of the year.

Purple street lights have appeared in many different cities in Wisconsin, including Oshkos, Veso, and Menxian, and in all over the United States, in Kansas, South Carolina, Illinois, Florida, Utah, Texas StateAnd Massachusetts.