The love traffic light in the southwestern Chinese city of Chengdu. /CFP

Located on North Tianxianqiao Road, it became a hot scenic spot for couples to check in on, especially on Valentine's Day. /CFP

Same as a usual traffic signal, the love one is made up of three lights, but functions differently. One is for the signal; the other is for the countdown while the middle will light up a heart. /CFP

Another pattern after the fashion of the Cupid's Arrow is projected on the crossings when "the green love light" goes on. /CFP