There are several problems with major surface arteries in cities. One is that they lack safe places
The major surface arteries of cities can choke the life out of their neighborhoods.
Therefore:
Periodically (typically at 800m or ½ mile spacing in both directions) create multi-way boulevards, consisting of several lanes for faster travel, slip lanes for slower travel and parking, wide pedestrian and bicycle sidewalk zones, and periodic crossings as frequent as possible, but not more than 400 meters apart. Make these beautiful urban spaces, with tree-lined medians and periodic focal points.
When … Between Mobility Corridor (p. 30) we need slower surface corridors that still accommodate a higher volume of vehicular traffic.
Then Space multi-way boulevards regularly between Avenue (p. 58) and at the edges of Sanctuary (p. 66). Provide ample medians and Street Trees.
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