For huge numbers of people to be able to move around NYC efficiently, there have always been some unwritten rules that too many people are no longer following. Maybe because they have always been unwritten? Well, not any more.
- Stay to the right when walking on streets or stairs
- Walk single file if the sidewalks are especially narrow or if you are pushing double wide baby strollers
- Let people get off the subway cars before you get on
- Move to the center of the subway car or back of the bus if there is room (which there usually is)
Unfortunately, we all know rules are not effective if they can not be enforced.