
Total Traffic Volume & Performance in Honolulu County, Hawaii
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day12,148 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 5.0% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 36.1 min |
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Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 32.3% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 47.0 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $112,541 |
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A typical monitored road in Honolulu County, Hawaii sees 12,148 vehicles per day, while its 889 miles of monitored roads together handle 13,442,041 vehicle-miles traveled per day (≈4.9 billion per year). Trucks are 5.0% of traffic, close to the 5.4% across Hawaii.
The busiest roads of any county in Hawaii
Honolulu's average daily traffic volume is 16% higher than the state average - 12,148 vehicles per day against 10,441 - suggesting more traffic load per road - a factor worth weighing in site selection and logistics planning. Network-wide, Honolulu accounts for about 61% of Hawaii's statewide total of vehicle-miles. Honolulu stands out as having the highest traffic volume in Hawaii - 12,148 vehicles per day.
At 36.1 minutes, the average travel time matches the state level closely. Honolulu additionally records the lowest average travel time of any county in Hawaii - 36.1 minutes.
The congestion ratio of 32.3% runs slightly higher than the state level (9% higher).
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Honolulu County, Hawaii
| Traffic | vehicles per day34,893 |
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| Trucks | 5.3% |
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| Average travel time | 34.0 min |
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| Congestion ratio | 80.4% |
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| Drivers’ average age | 47.2 yrs |
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| Drivers’ average income | $114,671 |
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Travel in Honolulu County, Hawaii splits roughly evenly, with about half of it (45% of vehicle-miles) on highways. The average highway carries 34,893 vehicles per day, 219% more than the average non-highway road in the same area, which carries 10,955 vehicles per day.
With 19% of the road miles (170 miles in 944 segments), highways punch above their length, carrying 6,078,245 vehicle-miles traveled per day (≈2.2 billion per year).
No county in Hawaii moves more traffic on its highways.
The lowest highway truck share of any county in Hawaii
The concentration of trucks on highways (5.3%) is in line with the state average for similar road classifications. The highway traffic mix is typical for Hawaii: neither freight- nor commuter-dominated.
Honolulu also posts the lowest highway truck share in Hawaii - 5.3%. At roughly 1,896 trucks per day, Honolulu carries the highest volume of highway trucks in Hawaii.

Non-highway Traffic in Honolulu County, Hawaii
| Traffic | vehicles per day10,955 |
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| Trucks | 4.7% |
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| Average travel time | 36.2 min |
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| Congestion ratio | 29.8% |
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| Drivers’ average age | 46.7 yrs |
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| Drivers’ average income | $110,629 |
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Travel in Honolulu County, Hawaii splits roughly evenly, with about half of it (55% of vehicle-miles) on local roads. The average non-highway road carries 10,955 vehicles per day.
Local roads make up 81% of the monitored road miles (720 miles in 18,008 segments) but carry less than their share of travel: 7,363,796 vehicle-miles traveled per day (≈2.7 billion per year). Trucks make up 4.7% of non-highway traffic, about 1 in 21 vehicles.
The highest driver income of any county in Hawaii
The concentration of trucks on non-highway roads is 12% lower than on highways.
Non-highway congestion (29.8%) runs slightly higher than the state level (6% higher).
Honolulu also has the highest average driver income in Hawaii among trip origins - $112,541. Honolulu has the lowest median driver age in Hawaii - 47 years.