In Berkeley, CA they purposefully break up the grid for cars. So a street will be passable to pedestrians and bikes but blocked by bollards for cars. This gives

In Berkeley, CA they purposefully break up the grid for cars. So a street will be passable to pedestrians and bikes but blocked by bollards for cars. This gives the cul-de-sac effect without causing terrible walkability. Of course, traditional winding suburbs can accomplish something similar by adding pedestrian walkways through cul-de-sacs.