Average number of vehicles per day using an urban road over the course of a year.
Average Daily Traffic (OI0659)
Calculation:
- Reporting Format Decimal
- Metric Type Metric
- Metric Level Organization
- IRIS Metric Citation IRIS, 2021. Producer Price Premium (PI1568). v5.2.
Footnote
Organizations should footnote all assumptions used, including source(s) of data.
Usage Guidance
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This metric is intended to capture the volume of traffic in a particular market or context, expressed as the average number of vehicles using an urban road per day over the course of a year. Organizations may also choose to report average traffic for other periods of time (e.g., traffic per month). Traffic on a road, particularly over time, serves as a proxy for the qualitative contribution of new transportation infrastructure to economic activity.
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Providers of GPS traffic data frequently offer traffic counts by side of road, day of week, and time of day.
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International Finance Institutions (IFIs) often use this metric as part of transportation analysis. If toll roads are not part of a project, this metric is not a good indicator of impact performance, unless the corresponding transport or transit agency monitors traffic congestion.
SDG Goals & Targets
Sustainable Cities and Communities
- SDG Target 11.1
- SDG Target 11.2
- SDG Target 11.3
- SDG Target 11.6
Metric History
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June 2022 - IRIS v5.3 Released (current version)
Immaterial change. Minor revision to usage guidance for clarity.
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January 2020 - IRIS v5.1 Released
New metric. Average Daily Traffic (OI0659) developed through partnership with HIPSO.