Amount of space per passenger (in an airport, passenger port, or vehicle) during the reporting period.
Space Per Passenger (PI8394)
- Reporting Format Unit Referenced within Metric Definition
- Metric Type Metric
- Metric Level Product/Service
- IRIS Metric Citation IRIS, 2021. Space Per Passenger (PI8394). v5.2.
Footnote
Organizations should footnote all assumptions used, including source of data.
Usage Guidance
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This metric is intended to capture the amount of space available to each client (passenger) in a vehicle (for example, a train, boat, or airplane) or waiting place (such as an airport). This metric provides an indication of quality of service.
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This metric is often used by International Finance Institutions (IFIs) as part of transportation analysis.
Impact Categories & Themes
SDG Goals & Targets
Industry, Innovation and Infrastructure
Metric History
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June 2025 - IRIS+ v5.3b Released (current version)
No change.
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December 2024 - IRIS+ v5.3a Released
No change.
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June 2022 - IRIS+ v5.3 Released
Immaterial change. Minor revision to usage guidance for clarity.
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May 2021 - IRIS+ v5.2 Released
New metric. Space Per Passenger (PI8394) was developed via the IRIS+ Climate Change Mitigation Expert Subgroup.