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The 15 busiest US truck lanes by observed trips — origin-to-destination state pairs ranked by traffic.
observed truck trips on NM→TX, the busiest lane
| Period | Observed trips |
|---|---|
| NM→TX | 5,676 |
| TX→NM | 5,657 |
| AZ→CA | 4,813 |
| CA→AZ | 4,651 |
| NM→CA | 4,650 |
| CA→NM | 4,534 |
| WA→CA | 4,469 |
| NV→CA | 4,368 |
| CA→NV | 4,270 |
| CA→WA | 4,204 |
| OR→CA | 3,791 |
| CA→OR | 3,618 |
| NM→AZ | 2,087 |
| AZ→NM | 2,027 |
| NC→SC | 1,948 |
Each bar is the total observed truck trips on one origin-to-destination lane. A unit lane is an origin-to-destination segment inferred from where the same truck VIN was inspected over time; its frequency is how often that VIN traversed the segment. Bars sum frequency across every VIN for the same state pair. Only the 15 highest-traffic lanes are shown. Source: FMCSA roadside inspection records from data.transportation.gov, refreshed daily.
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