Slope Formula:
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Sidewalk slope refers to the incline or decline of a sidewalk surface, typically measured as the ratio of vertical rise to horizontal run. It's a critical factor in accessibility and safety standards for pedestrian pathways.
The calculator uses the slope formula:
Where:
Explanation: The formula calculates the steepness of an incline by dividing the vertical change by the horizontal distance.
Details: Proper slope calculation is essential for ADA compliance, ensuring accessibility for people with disabilities, preventing water pooling, and maintaining safe walking surfaces.
Tips: Enter rise and run values in feet. Both values must be positive numbers, with run greater than zero.
Q1: What is the maximum allowable slope for sidewalks?
A: ADA guidelines typically require a maximum slope of 1:12 (8.33%) for ramps and 1:20 (5%) for walking surfaces.
Q2: How is slope typically expressed?
A: Slope can be expressed as a ratio (1:12), percentage (8.33%), or decimal (0.0833).
Q3: Why is proper slope important for sidewalks?
A: Proper slope ensures accessibility, prevents slipping hazards, allows proper drainage, and meets building code requirements.
Q4: How do I measure rise and run in the field?
A: Use a level and measuring tape. Place the level horizontally, measure the vertical drop at the end, and measure the horizontal distance.
Q5: Can this calculator be used for other slope calculations?
A: Yes, the basic slope formula applies to various applications including ramps, roofs, roads, and any inclined surface.