Ban all private vehicles within the 3rd ring road, only public transport.
Educate people on the proper way to enter and exit public transport.
Limit the amount of people allowed on buses or in train carriages.
Staff on every carriage of every train in the city as well as buses to enforce penalties on unsociable behaviour.
Stagger working hours.
Enforce every law with zero tolerance.
If all else fails, send 50% of Beijing's population home.