When the Broadmoor Addition was built in the mid-1950s, families moving here typically had one automobile. Television and air conditioning had not driven everyone permanently inside. People still got out and walked around.
Without the overwhelming volume of vehicle traffic, it did not really matter that the neighborhood did not have sidewalks.
Fast forward to today, EVERYBODY has a car. People zip up and down the street, most of the time on the phone and going too fast.
Here''s a website with some great examples of how we can cooperatively use our streets to drive, walk, bike, and stroll: http://www.ahtd.info/home