A few years ago in Kunming "shared bikes" started appearing. For 5 Jiao (5p) a day you could use any of the thousands of public bikes parked around the city, unlocking them by mobile phone app where you find them and leaving them wherever and whenever you've finished with them. It proved very popular at first and there are certainly a lot of good things about it. But popularity has waned a little since the early days and an increasingly noticeable problem are the "bike graveyards" - piles of unwanted bikes which you can see dumped all over the city. In theory, the people who run the system should be picking them up and transporting them to subway stations, bus stops and other places where people need to use them. But it's clearly not working very well!
