confusedbuffalo
There are multiple types of pedestrian crossings. One is indeed a zebra crossing, and also traffic light crossings (pelican, toucan etc.).
This is an "unmarked" or "uncontrolled" crossing, where one can cross the road but there are no markings or control for it.
It is still helpful to map these as there is infrastructure for making it easier to cross here rather than just at a random point along the road.
You may have also seen the quest asking what type of crossing something is which shows you the different options.
I've added the appropriate details to the two crossings here.