Description
Return their difference and an inclusive meetsSuppliedWidth flag.
Accessibility decisions depend on the person, context, content, and relevant design requirements. A supplied measurement or formatting check addresses one condition and cannot establish that an entire interface, sign, or space is accessible.
Return their difference and an inclusive meetsSuppliedWidth flag.
When to use this tool
Use Wheelchair Clear Width Measured Margin when you need one documented accessibility component under a supplied criterion.
How to use the tool and how it works
- Enter measuredClearWidth, requiredWidth. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read margin, meetsSuppliedWidth. Inspect meetsSuppliedWidth before interpreting the associated values.
Require nonnegative measuredClearWidth and requiredWidth. Return their difference and an inclusive meetsSuppliedWidth flag.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| measuredClearWidth | Measured Clear Width | Required. Finite number; minimum 0. |
| requiredWidth | Required Width | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| margin | Signed allowance remaining under the subtraction order above. | Required. Finite number. |
| meetsSuppliedWidth | Meets Supplied Width | Required. Boolean. |
{
"input": {
"measuredClearWidth": 900,
"requiredWidth": 850
},
"output": {
"margin": 50,
"meetsSuppliedWidth": true
}
}Limitations and assumptions
- The required width is supplied; this single margin does not establish wheelchair usability, turning space, route accessibility, measurement accuracy, or legal compliance.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Evaluate the complete experience with relevant guidance, appropriate expertise, and people who use the access features.
References
Similar or alternative tools
- Screw Head Tool Access Radius
Return half the head diameter plus tool clearance for requiredAccessRadius.
- Street Section Space Remainder
Subtract carriagewayWidth and sidewalkTotalWidth from rightOfWayWidth for remainingWidth.