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Traffic | vehicles per day16,744 |
|---|---|
Trucks | 4.8% |
Average travel time | 37.1 min |
Congestion ratio | 41.9% |
Drivers’ average age | 43.0 yrs |
Drivers’ average income | $143,694 |
The average monitored road in San Francisco County, California carries 16,744 vehicles per day. Across its 381 miles of monitored roads, that adds up to 8,179,874 vehicle-miles traveled per day (≈3.0 billion per year). About 1 in 21 vehicles is a truck, fewer than the 1 in 13 across California.
At 16,744 vehicles per day, the average monitored road in San Francisco carries 31% more traffic than the state average of 12,766, suggesting more demand on each road - a busier backdrop for retail sites, at the cost of slower access. Network-wide, San Francisco accounts for about 0.9% of California's statewide total of vehicle-miles. San Francisco carries more traffic than 98% of counties in California.
At 37.1 minutes, the average travel time is 8% higher than the state level. 81% of counties in California have a shorter average travel time than San Francisco's 37.1 minutes.
Congestion runs 53% higher than the state level, at a ratio of 41.9%, which means more pronounced congestion - peak-hour routing and delivery windows need real slack here.
| Traffic | vehicles per day45,753 |
|---|---|
| Trucks | 5.5% |
| Average travel time | 37.9 min |
| Congestion ratio | 79.2% |
| Drivers’ average age | 44.1 yrs |
| Drivers’ average income | $140,912 |
A significant share of driving in San Francisco County, California, 41% of vehicle-miles, happens on highways. The average highway carries 45,753 vehicles per day, 198% more than the average non-highway road in the same area, which carries 15,349 vehicles per day.
With 14% of the road miles (54 miles in 587 segments), highways punch above their length, carrying 3,367,873 vehicle-miles traveled per day (≈1.2 billion per year).
At 5.5%, highway truck share is 47% lower than the state average. Highways here carry mainly commuter and local trips, with little through freight.
At 5.5%, San Francisco's highway truck concentration is the lowest in California. San Francisco's highway truck count is higher than 61% of counties in California, at roughly 2,535 trucks per day.
| Traffic | vehicles per day15,349 |
|---|---|
| Trucks | 4.3% |
| Average travel time | 37.1 min |
| Congestion ratio | 40.1% |
| Drivers’ average age | 42.2 yrs |
| Drivers’ average income | $145,217 |
A little more than half of the driving in San Francisco County, California happens on local roads: 59% of all vehicle-miles. A typical local road sees 15,349 vehicles per day.
Local roads make up 86% of the monitored road miles (327 miles in 12,205 segments) but carry less than their share of travel: 4,812,001 vehicle-miles traveled per day (≈1.8 billion per year). Trucks make up 4.3% of non-highway traffic, about 1 in 23 vehicles.
Non-highway roads carry a truck concentration that's 23% lower than the highway network.
Non-highway congestion (40.1%) runs 51% higher than the state average, pointing to slower local traffic flow.
Trip origins here have higher average income than 93% of counties in California. The driver population here skews younger than 74% of counties in California.
Mobile device location data (anonymized and aggregated)
Road sensor networks and traffic counters
Historical traffic pattern databases
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