It’s also a defining characteristic of an area’s architecture and culture. Looking at this area, again, you can see nodes and corridors arising from the shapes, not consistent, and lacking in almost any east-west traffic. It also reminds you that the vast majority of the area is housing only, even many of the apartment buildings.
Before getting to a relatively objective judgement of where neighborhoods are centered, it’s worth drawing out where the commercial spaces are. We know that street retail is a big draw for getting people onto the streets. Whether this is materialistic or not, shops and restaurants do get people out of their homes and onto the streets if they are oriented toward sidewalks. Even when there aren’t that many people on the sidewalks or in stores, the rhythm of the buildings and the people watching from within the buildings enliven and secure neighborhoods. With the big awning signs, stores often also engage drivers and people on the far side of a street, adding another layer to the community structure. So, take a look at that here, with enlivened sidewalks in red, and other enlivened spaces in a paler shade.