Public bikeshare arrived in San Diego in 2014. Last month, three companies unleashed thousands of dockless bikes, cluttering sidewalks in three business districts to the chagrin of merchants who want a time-out so the city can develop regulations.
Led by the companies Mobike and Ofo, so-called "dockless" bike sharing is all the rage in Chinese cities. Unlocked by app, the bikes can be left anywhere for the next user to pick up. There have been some hiccups.