Bike Lane Design Calculator
Determine recommended bike lane type, width, and buffer from traffic speed, volume, and roadway conditions using NACTO and AASHTO guidelines.
Inputs
mph
ADT
ft
bikes/day
Results
Recommended Facility
Buffered Bike Lane
Lane Width6 ft
Buffer Width2 ft
Total Width (one side)8 ft
Total Width (both sides)16 ft
Available Width24 ft
FeasibilityYes — fits within roadway
Level of Traffic Stress2
LTS DescriptionModerate — comfortable for most adults
Min Lane Width5
How to Use This Calculator
- Enter Posted Speed, Average Daily Traffic, and Roadway Width.
- Set On-Street Parking, No, and Yes.
- Adjust Daily Bike Volume, Truck Traffic as needed.
- Review the Recommended Facility result.
- Use Lane Width (ft) and Buffer Width (ft) to inform your decision.
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