B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
8
8 -- traffic congestion rank for Philadelphia (2025)
Philadelphia is ranked the #8 most congested city in the world for traffic.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
8
Unit
Rank
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
60
Independence
30
Methodology
45
Freshness
95
Source
INRIX
Primary
Tier B
https://qa.outfront.dev/blog/how-advertisers-should-go-big-with-outfront-billboards-in-philadelphia ↗
Source Article
How Advertisers Go Big with OUTFRONT Billboards in Philadelphia | Brand Central Station | OUTFRONT
How Advertisers Go Big with OUTFRONT Billboards in Philadelphia
May 29, 2025
If you're looking to make a splash in the advertising world, there's no better place to do it than in the City of Brotherly Love. Philadelphia is more than a city; it's a vibe, a culture, and in 2026, it's going to be the e…
Original Research
INRIX
· Original study ↗
Methodology
Source cited as INRIX global traffic scorecard
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Philadelphia: 8 traffic congestion rank. Source: INRIX (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/philly-traffic-congestion-rank
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<blockquote cite="https://lighthousedata.io/data/philly-traffic-congestion-rank" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>8</strong> -- traffic congestion rank for Philadelphia<br><small>Source: INRIX (2025) · <a href="https://lighthousedata.io/data/philly-traffic-congestion-rank" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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