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TrafficThe average number of vehicles that travel each day over any road in the road network. | vehicles per day7,270 |
|---|---|
TrucksThe percentage of the total traffic volume composed of heavy vehicles. | 8.9% |
Average travel timeThe average time of travel averaged among all vehicles traveling on the road network. | 32.4 min |
Congestion ratioThe rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 18.4% |
Drivers’ average ageAverage age of residents in the geographic areas where the vehicle trips originated. | 45.5 yrs |
Drivers’ average incomeAverage income of residents in the geographic areas where the vehicle trips originated. | $81,361 |
The average monitored road in Rockdale County, Georgia carries 7,270 vehicles per day. Across its 249 miles of monitored roads, that adds up to 2,575,904 vehicle-miles traveled per day (≈940 million per year). Trucks are 8.9% of traffic, close to the 9.7% across Georgia.
Rockdale's average daily traffic volume of 7,270 vehicles per day is on par with the state average of 7,398. In total volume terms, its road network carries about 0.9% of Georgia's statewide total of vehicle-miles. Rockdale carries more traffic than 85% of counties in Georgia.
The average trip takes 32.4 minutes, on par with the state level. Its average travel time of 32.4 minutes is shorter than 63% of counties in Georgia.
Congestion is somewhat higher than the state level, at a ratio of 18.4% (9% higher).
| Traffic | vehicles per day16,145 |
|---|---|
| Trucks | 12.8% |
| Average travel time | 39.0 min |
| Congestion ratio | 28.2% |
| Drivers’ average age | 45.4 yrs |
| Drivers’ average income | $79,237 |
Travel in Rockdale County, Georgia splits roughly evenly, with about half of it (52% of vehicle-miles) on highways. The average highway carries 16,145 vehicles per day, 151% more than the average non-highway road in the same area, which carries 6,420 vehicles per day.
With 18% of the road miles (44 miles in 636 segments), highways punch above their length, carrying 1,327,866 vehicle-miles traveled per day (≈485 million per year).
81% of counties in Georgia move less traffic on their highways.
At 12.8%, highway truck share is 5% lower than the state average. The highway traffic mix is typical for Georgia: neither freight- nor commuter-dominated.
52% of counties in Georgia see a higher highway truck share than Rockdale's 12.8%. Rockdale's highway truck count is higher than 85% of counties in Georgia, at roughly 2,071 trucks per day.
| Traffic | vehicles per day6,420 |
|---|---|
| Trucks | 4.7% |
| Average travel time | 31.8 min |
| Congestion ratio | 17.5% |
| Drivers’ average age | 45.5 yrs |
| Drivers’ average income | $83,193 |
Travel in Rockdale County, Georgia splits roughly evenly, with about half of it (48% of vehicle-miles) on local roads. A typical local road sees 6,420 vehicles per day.
Spread over 205 miles and 6,639 segments, 82% of the road network, local roads carry a lighter load per mile: 1,248,038 vehicle-miles traveled per day (≈456 million per year). About 1 in 21 vehicles on non-highway roads is a truck (4.7%).
Compared to highways, non-highway routes see 63% fewer trucks by share.
Non-highway congestion (17.5%) runs slightly higher than the state level (8% higher).
Rockdale's average driver income is higher than 84% of counties in Georgia. The driver population here skews younger than 66% of counties in Georgia.
Rockdale County stays close to the Georgia average; the largest gap is its truck share, 8% below.
| Metric | Rockdale County | Georgia average | Difference |
|---|---|---|---|
| Traffic | 7,270 | 7,398 | -1.7% |
| Truck % (Total Traffic) | 8.9% | 9.7% | -8.1% |
| Truck % (Highway) | 12.8% | 13.6% | -5.5% |
| Avg. Travel Time | 32.4 min | 33.6 min | -3.4% |
Against the 4 nearest areas, Rockdale County moves 36.0% of the total daily travel; it has the third busiest roads of the five.
| Area | Average daily traffic | Truck share | Daily vehicle-miles | Average travel time | Congestion ratio |
|---|---|---|---|---|---|
| Rockdale County | 7,270 | 8.9% | 2,575,904 | 32.4 min | 18.4% |
| Newton County, Georgia | 6,851 | 10.7% | 2,587,278 | 30.4 min | 20.7% |
| Walton County, Georgia | 6,463 | 7.2% | 2,041,222 | 31.8 min | 17.7% |
| DeKalb County, Georgia | 14,177 | 7.9% | 17,970,158 | 34.7 min | 27.0% |
| Henry County, Georgia | 7,892 | 9.6% | 5,998,355 | 32.0 min | 18.9% |
| Georgia average | 7,398 | 9.7% | N/A | 33.6 min | 16.8% |
Rockdale County sits in the top quarter of the Georgia field on average daily traffic volume, at #24 of 159.
| Measure | Rockdale County | Georgia rank |
|---|---|---|
| Traffic volume (AADT) | 7,270 | #24 of 159 |
| Highway vehicle-miles per day | 1,327,866 | #29 of 147 |
| Truck share on highways | 12.8% | #76 of 147 |
| Highway trucks per day | 2,071 | #23 of 147 |
| Average travel time | 32.4 min | #101 of 159 |
| Average driver income | $81,361 | #27 of 159 |
| Average driver age | 45.5 yrs | #105 of 159 |
The three busiest roads in Rockdale County average 57,534 vehicles a day, 7.9 times the county average of 7,270 across all its monitored roads.
I 20 leads with 95,190 vehicles a day, 14,160 of them trucks (14.9%). That is 2.0 times the next road, McDonough Road (46,644). It also carries the most trucks.
Freight stands out on I 20: trucks are 14.9% of the traffic there, against 8.9% county-wide.
Trips using I 20 are long: a median of 45.4 minutes against 32.4 county-wide, the mark of a through route.
Delays build on I 20: its congestion ratio of 63% over free-flow time is well above the county's 18%.
McDonough Road carries 6.4 times the county average on its busiest stretch, where the median trip lasts 34.2 minutes.
Walnut Grove Road carries 4.2 times the county average at its busiest, 2,064 of them trucks (6.7%, below the county-wide 8.9%).
Travel on Salem Road Southeast's busiest stretch runs 73% over free-flow time, against 18% across the county, so expect slower peak hours.
McDonough Highway carries 3.6 times the county average on its busiest stretch, where the median trip lasts 31.7 minutes.
At 2.6 times the county average, GA 138 draws drivers from neighborhoods averaging $85,033 in household income.
The busiest stretch of Sigman Road Southwest carries 2.8 times the county average; trucks are 5.8% of it, below the county-wide 8.9%.
The average monitored road in Rockdale carries 7,270 vehicles per day, in line with the Georgia average of 7,398.
Rockdale carries more highway trucks by raw volume than 85% of counties in Georgia, at roughly 2,071 per day.
Trucks make up about 8.9% of all traffic in Rockdale County, Georgia, rising to 12.8% on highways, where long-haul freight concentrates.
The average trip in Rockdale takes 32.4 minutes, about the same as the Georgia average, delays at signals and congestion included.
Drivers on Rockdale roads have a median age of 45 years, and the median household income of the neighborhoods trips originate from averages $81,361, 7% below the Georgia average.
Approximately 46% of highway traffic and 37% of non-highway traffic consists of vehicles whose trip originates outside Rockdale County, Georgia. A sizeable share of highway traffic comes from outside, mixed with local trips on the same roads.
Weekday traffic has two busy windows: AM peak 7:00 AM–9:00 AM and PM peak 4:00 PM–6:00 PM - about 75% above the daily average.
I 20 carries the most, 95,190 vehicles per day on its busiest stretch, followed by McDonough Road (46,644), Walnut Grove Road (30,768), Salem Road Southeast (27,381), McDonough Highway (26,200). Figures are AADT, both directions combined.
I 20, with about 14,160 trucks per day on its busiest stretch, 14.9% of its 95,190 vehicles.
About 95,190 vehicles per day in both directions on its busiest stretch, including 14,160 trucks (14.9%). Traffic is lower on its quieter stretches; TrafficZoom shows the count for every segment.

Mobile device location data (anonymized and aggregated)

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Historical traffic pattern databases
The same traffic breakdown for the areas closest to Rockdale County, Georgia.
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