The Chinese Communist Party often tries to show other countries that China is a very modern country with very modern cities with very modern buildings (e.g. skyscrapers in Shanghai, Beijing, etc). However, when you live in China (Shanghai / Beijing) you will find that spitting, littering, running through red traffic lights, jumping queues, pushing, etc are happening often in not only crowded places but in many places.
But one direction is very definite - Being civilized, as you can see with the slogan on these banners/signs. Very often at typical residential apartments / condominium / townhouse complex in China (at least in Shanghai for example), you will see banners/signs like these that say "文明小区" (wen-ming-xiao-qu), which means "civilized condominium".