Roadway Design:

Design and operational elements of the roadway affect the ability of pedestrians to safely and easily cross streets. A geometric element such as street width affects the time needed to cross the street, whereas an operational parameter like traffic direction (one-way vs. two-way) affects the number of potential conflicts between motorists and crossing pedestrians.

Bicycle Lanes
Roadway Narrowing
Lane Reduction
Driveway Improvements
Raised Medians
One-Way/Two-Way Street Conversions
Curb Radius Reduction
Improved Right-Turn Slip-Lane Design
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U.S. Department of Transportation Federal Highway Administration