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Streets / roads 🚸 Street cross section widths

michaelskis

Cyburbian
Messages
21,216
Points
61
Every DOT has "Standards" but I am curious about best practices from across the country and wondering about how wide each of the following elements are in your specification manuals:

Width of landscaped medians
Lane width for a 2 lane, landscape median divided road
Tree planting strip between curb and sidewalk
Lane widths for a 4-lane, landscape median divided road
Width of bike lane (with or without buffer strip)
Width of a travel lane for an undivided 2 lane road
 

SlaveToTheGrind

Cyburbian
Messages
1,790
Points
32
While not state DOT roads but my jurisdiction's standards.

Width of landscaped medians - 14' if landscaped (not required) on a 180' ROW, otherwise concrete medians
Lane width for a 2 lane, landscape median divided road - not in specs; no 2-lane with landscaped median
Tree planting strip between curb and sidewalk - 8' on a 59' ROW, 9 feet n a 77' and 100' ROW, 16.5' on a 180' ROW
Lane widths for a 4-lane, landscape median divided road - 12' on 180' ROW
Width of bike lane (with or without buffer strip) - 5'
Width of a travel lane for an undivided 2 lane road - 14.5 '
 
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