Amount of space per passenger (in an airport, passenger port, or vehicle) during the reporting period.
Organizations should footnote all assumptions used, including source of data.
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.
This metric is often used by International Finance Institutions (IFIs) as part of transportation analysis.
June 2022 - IRIS v5.3 Released (current version)
Immaterial change. Minor revision to usage guidance for clarity.
IRIS Metrics Work Better in Sets
To use IRIS metrics—and the resulting data—to understand impact performance, IRIS metrics should be used and analyzed in generally accepted sets and according to well-defined objectives. IRIS+ gives you access to generally accepted Core Metrics Sets aligned to common Impact Themes and Sustainable Development Goals (SDGs).