I live in a gridiron layout on the north border of DC. Two blocks up, it switches immediately from gridiron to loops and lollipops at the Maryland border.
Needless to say, the loop-and-lollipop neighborhood residents need to drive through our grid neighborhood to get to their jobs or anywhere else in DC.
We're not allowed to drive through their lollipop neighborhood to get anywhere in Maryland, though. They use an array of cul-de-sacs, bollards, and one-way streets to make it so none of their streets are through-streets. You only get to drive there if you live there.
I live in a gridiron layout on the north border of DC. Two blocks up, it switches immediately from gridiron to loops and lollipops at the Maryland border.
Needless to say, the loop-and-lollipop neighborhood residents need to drive through our grid neighborhood to get to their jobs or anywhere else in DC.
We're not allowed to drive through their lollipop neighborhood to get anywhere in Maryland, though. They use an array of cul-de-sacs, bollards, and one-way streets to make it so none of their streets are through-streets. You only get to drive there if you live there.
For anyone intrigued by the evolution of street grid, check out these conversations with urbanist legend Leon Krier.
https://www.youtube.com/@leonkrier683/videoson.