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Traffic | vehicles per day14,311 |
|---|---|
Trucks | 5.5% |
Average travel time | 30.0 min |
Congestion ratio | 31.4% |
Drivers’ average age | 40.9 yrs |
Drivers’ average income | $119,432 |
The average monitored road in San Diego County, California carries 14,311 vehicles per day. Across its 4,209 miles of monitored roads, that adds up to 85,105,406 vehicle-miles traveled per day (≈31.1 billion per year). Trucks are a smaller part of the mix than across California: 5.5% against 7.8%.
San Diego's average daily traffic volume is 12% higher than the state average - 14,311 vehicles per day against 12,766 - a critical factor for logistics and site planning. In total volume terms, its road network carries about 9.2% of California's statewide total of vehicle-miles. San Diego carries more traffic than 95% of counties in California.
At 30.0 minutes, the average travel time is 13% lower than the state level. On travel time, San Diego runs shorter than 98% of counties in California.
The congestion ratio of 31.4% runs slightly higher than the state level (14% higher) - relevant for traffic control and delivery planning.
| Traffic | vehicles per day56,292 |
|---|---|
| Trucks | 6.6% |
| Average travel time | 32.4 min |
| Congestion ratio | 70.6% |
| Drivers’ average age | 40.8 yrs |
| Drivers’ average income | $115,866 |
Highways carry more than half of all travel in San Diego County, California (56% of vehicle-miles). The average highway carries 56,292 vehicles per day, 339% more than the average non-highway road in the same area, which carries 12,818 vehicles per day.
Highways make up 20% of the monitored road miles (833 miles, 3,698 segments), so they carry more than their share: 47,913,432 vehicle-miles traveled per day (≈17.5 billion per year).
By highway travel volume, that ranks San Diego in the top 3 counties in California.
At 6.6%, highway truck share is 36% lower than the state average. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
San Diego's highway truck share (6.6%) is lower than 92% of counties in California. San Diego's highway truck count is higher than 69% of counties in California, at roughly 3,727 trucks per day.
| Traffic | vehicles per day12,818 |
|---|---|
| Trucks | 4.0% |
| Average travel time | 29.9 min |
| Congestion ratio | 30.0% |
| Drivers’ average age | 41.1 yrs |
| Drivers’ average income | $122,819 |
Local roads carry a significant share of travel in San Diego County, California: 44% of all vehicle-miles. The average non-highway road carries 12,818 vehicles per day.
Spread over 3,376 miles and 103,948 segments, 80% of the road network, local roads carry a lighter load per mile: 37,191,974 vehicle-miles traveled per day (≈13.6 billion per year). Trucks make up 4.0% of non-highway traffic, about 1 in 25 vehicles.
Non-highway roads carry a truck concentration that's 39% lower than the highway network.
Non-highway congestion (30.0%) runs slightly higher than the state level (13% higher).
San Diego's average driver income is higher than 82% of counties in California. The driver population here skews younger than 95% 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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