Description
Calculate supplied public-space observation area-times-hours.
Geographic activity records depend on location precision, boundary vintage, observation time, population denominator and access-window conventions. A travel-time budget differs from actual accessibility, and rectangular cell area does not establish privacy. Local shares and labels need the original survey and spatial definitions.
Calculate supplied public-space observation area-times-hours.
When to use this tool
Use Public Space Observation Area Time when you already have observedArea, observationHours and need to calculate supplied public-space observation area-times-hours.
How to use the tool and how it works
- Enter observedArea, observationHours. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read areaHours. Use the output convention below.
Require area/hours>=0; return area*hours.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| observedArea | Observed Area | Required. Finite number; minimum 0. |
| observationHours | Observation Hours | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| areaHours | Area Hours | Required. Finite number. |
{
"input": {
"observedArea": 200,
"observationHours": 2.5
},
"output": {
"areaHours": 500
}
}Limitations and assumptions
- Area and time bases are supplied; this is exposure support, not a count, density, attendance estimate or verified sampling design.
- 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
Use the actual route, service schedule, survey frame and boundary source when assessing mobility or access. Review disclosure across the full spatial dataset and linked records; a location label or cell-size product is not a complete privacy method.
References
Similar or alternative tools
- Neighborhood Area Population Weight
Calculate a neighborhood population's share of its supplied regional population.
- Travel Budget Time Constraint Margin
Check a supplied round-trip activity time budget.