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TrafficThe average number of vehicles that travel each day over any road in the road network. | vehicles per day3,538 |
|---|---|
TrucksThe percentage of the total traffic volume composed of heavy vehicles. | 8.8% |
Average travel timeThe average time of travel averaged among all vehicles traveling on the road network. | 34.9 min |
Congestion ratioThe rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 10.7% |
Drivers’ average ageAverage age of residents in the geographic areas where the vehicle trips originated. | 50.2 yrs |
Drivers’ average incomeAverage income of residents in the geographic areas where the vehicle trips originated. | $69,180 |
A typical monitored road in Dorchester County, Maryland sees 3,538 vehicles per day, while its 217 miles of monitored roads together handle 855,239 vehicle-miles traveled per day (≈312 million per year). At 8.8%, the truck share runs above the 7.5% across Maryland: about 1 in 11 vehicles.
Dorchester sees 54% lower average daily traffic volume than the state average (3,538 vehicles per day against 7,693), suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Network-wide, Dorchester accounts for about 0.6% of Maryland's statewide total of vehicle-miles. 87% of counties in Maryland see more traffic than Dorchester's 3,538 vehicles per day.
At 34.9 minutes, the average travel time matches the state level closely. Its average travel time of 34.9 minutes is longer than 83% of counties in Maryland.
The congestion ratio of 10.7% is 48% lower, pointing to smoother traffic flow than the state level - fewer delays make delivery windows more reliable.
| Traffic | vehicles per day14,101 |
|---|---|
| Trucks | 10.0% |
| Average travel time | 51.0 min |
| Congestion ratio | 33.9% |
| Drivers’ average age | 50.0 yrs |
| Drivers’ average income | $71,833 |
A little more than half of the driving in Dorchester County, Maryland happens on highways: 55% of all vehicle-miles. The average highway carries 14,101 vehicles per day, 395% more than the average non-highway road in the same area, which carries 2,847 vehicles per day.
That comes from just 17% of the monitored road miles: 37 miles in 180 segments, carrying 472,059 vehicle-miles traveled per day (≈172 million per year).
At 10.0%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for Maryland: neither freight- nor commuter-dominated.
52% of counties in Maryland see a higher highway truck share than Dorchester's 10.0%. 65% of counties in Maryland see more highway trucks per day than Dorchester's roughly 1,413.
| Traffic | vehicles per day2,847 |
|---|---|
| Trucks | 7.2% |
| Average travel time | 33.8 min |
| Congestion ratio | 9.2% |
| Drivers’ average age | 50.5 yrs |
| Drivers’ average income | $66,915 |
A significant share of driving in Dorchester County, Maryland, 45% of vehicle-miles, happens on local roads. A typical local road sees 2,847 vehicles per day.
Local roads make up 83% of the monitored road miles (179 miles in 2,752 segments) but carry less than their share of travel: 383,180 vehicle-miles traveled per day (≈140 million per year). About 1 in 14 vehicles on non-highway roads is a truck (7.2%).
The concentration of trucks on non-highway roads is 28% lower than on highways.
The non-highway congestion ratio of 9.2% is 52% lower than the state level, suggesting more efficient local mobility than the state average.
91% of counties in Maryland see higher average driver income among trip origins than Dorchester. 74% of counties in Maryland have a younger driver population than Dorchester.
Dorchester County's biggest difference from the Maryland average is its average daily traffic per road, 54% below it. Its truck share, by contrast, is 17% above.
| Metric | Dorchester County | Maryland average | Difference |
|---|---|---|---|
| Traffic | 3,538 | 7,693 | -54.0% |
| Truck % (Total Traffic) | 8.8% | 7.5% | +17.2% |
| Truck % (Highway) | 10.0% | 9.8% | +2.7% |
| Avg. Travel Time | 34.9 min | 34.0 min | +2.5% |
Compared with its 4 closest neighbours, Dorchester County is 28.5% less congested; it has the fourth busiest roads of the five. Less traffic and more room for it - the roads here run both quieter and freer than the areas around them.
| Area | Average daily traffic | Truck share | Daily vehicle-miles | Average travel time | Congestion ratio |
|---|---|---|---|---|---|
| Dorchester County | 3,538 | 8.8% | 855,239 | 34.9 min | 10.7% |
| Wicomico County, Maryland | 5,632 | 6.2% | 2,419,383 | 35.7 min | 16.3% |
| Somerset County, Maryland | 2,041 | 9.3% | 693,745 | 32.1 min | 7.7% |
| Talbot County, Maryland | 5,823 | 8.9% | 1,401,043 | 38.2 min | 19.6% |
| St. Mary's County, Maryland | 6,003 | 5.3% | 2,184,014 | 30.5 min | 16.3% |
| Maryland average | 7,693 | 7.5% | N/A | 34.0 min | 20.5% |
Average driver income places Dorchester County #22 of 24 in Maryland - the bottom quarter of the state.
| Measure | Dorchester County | Maryland rank |
|---|---|---|
| Traffic volume (AADT) | 3,538 | #21 of 24 |
| Highway vehicle-miles per day | 472,059 | #21 of 24 |
| Truck share on highways | 10.0% | #13 of 24 |
| Highway trucks per day | 1,413 | #16 of 24 |
| Average travel time | 34.9 min | #5 of 24 |
| Average driver income | $69,180 | #22 of 24 |
| Average driver age | 50.2 yrs | #7 of 24 |
Dorchester County ranks #5 of 24 on average travel time but #22 of 24 on average driver income - the two describe the same roads and are worth reading together rather than either on its own.
On their busiest stretches, the three busiest roads in Dorchester County carry 29,808 vehicles a day on average, 8.4 times the typical road in the county (3,538).
Sunburst Highway is the busiest road, at 36,140 vehicles a day, 3,532 of them trucks (9.8%). It tops the truck ranking too, with the most trucks.
Senator Malkus Junior Bridge carries longer journeys than most roads here, with a median trip of 57.5 minutes against 34.9 county-wide.
Sunburst Highway is one of the more congested roads here: trips take 38% longer than at free-flow speed, against 11% county-wide.
A main artery: Senator Malkus Junior Bridge's busiest stretch carries 8.2 times the county average; trucks are 10.0% of it, above the county-wide 8.8%.
Ocean Gateway carries through traffic: the median trip using it lasts 50.8 minutes, against 34.9 for the county.
Delays build on Washington Street: its congestion ratio of 37% over free-flow time is well above the county's 11%.
The busiest stretch of Mount Holly Road carries 2.5 times the county average; trucks are 6.7% of it, below the county-wide 8.8%.
The average monitored road in Dorchester carries 3,538 vehicles per day, 54% less than the Maryland average of 7,693.
Dorchester's average travel time of 34.9 minutes is longer than 83% of counties in Maryland.
Weekday traffic has two busy windows: a long morning plateau from 7:00 AM to 12:00 PM and PM peak 4:00 PM–6:00 PM - about 69% above the daily average.
The average trip in Dorchester takes 34.9 minutes, about the same as the Maryland average, delays at signals and congestion included.
Drivers on Dorchester roads have a median age of 50 years, older than the Maryland average of 46, and the median household income of the neighborhoods trips originate from averages $69,180, 42% below the Maryland average.
Sunburst Highway carries the most, 36,140 vehicles per day on its busiest stretch, followed by Senator Malkus Junior Bridge (28,966), Ocean Gateway (24,319), Washington Street (15,529), Mount Holly Road (8,989). Figures are AADT, both directions combined.
Sunburst Highway, with about 3,532 trucks per day on its busiest stretch, 9.8% of its 36,140 vehicles.
About 36,140 vehicles per day in both directions on its busiest stretch, including 3,532 trucks (9.8%). Traffic is lower on its quieter stretches; TrafficZoom shows the count for every segment.

Mobile device location data (anonymized and aggregated)

Road sensor networks and traffic counters

Historical traffic pattern databases
The same traffic breakdown for the areas closest to Dorchester County, Maryland.
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