But the property manager says it's intended to be ironic to remind people that it's dangerous to tweet while walking the street.
"There are lots of elderly people and children in our street, and walking with your cellphone may cause unnecessary collisions here," said Nong Cheng, the marketing official with Meixin Group, which manages the area in the city's entertainment zone.
Meixin has marked a 50-meter stretch of pavement with two lanes: one that prohibits cellphone use next to one that allows pedestrians to use them at their "own risk."
She said that pedestrians were not taking the new lanes seriously, but that many were snapping pictures of the signs and sidewalk.
"Those using their cellphones of course have not heeded the markings on the pavement," she said. "They don't notice them.