Crosswalks in China . . . I think whoever the first person in China was to design the model that would be used in all Chinese cities thereafter may have not completely understood some of the basic principles of where it is appropriate to make a crosswalk.
Case in point this picture where there are four lanes of traffic on either side of the barrier with openings for pedestrians using the crosswalk that has no traffic lights.
Pedestrians just go when they can, dodging between vehicles that barely slow down, and when they make it to the barrier in the center they then have to do the same maneuvers through the other four lanes of traffic.
Oh, and the other thing pedestrians have to contend with: scooters driving through the center barrier-gates to either cross the street or change direction of travel–nice!