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Traffic heat map of Gaston County, North Carolina: 493 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Cameron Morrison Bridge

Gaston County, North Carolina Traffic Counts

How busy are the roads of Gaston County, North Carolina? We measure 493 road miles, divided into 14,238 segments, with multi-sourced, cross-verified mobile and sensor data. Its average highway carries more trucks than in any other county in North Carolina, about 4,540 a day. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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Total Traffic Volume & Performance in Gaston County, North Carolina

Traffic

The average number of vehicles that travel each day over any road in the road network.

vehicles per day8,093
Trucks

The percentage of the total traffic volume composed of heavy vehicles.

9.7%
Average travel time

The average time of travel averaged among all vehicles traveling on the road network.

33.9 min
Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.

20.5%
Drivers’ average age

Average age of residents in the geographic areas where the vehicle trips originated.

46.4 yrs
Drivers’ average income

Average income of residents in the geographic areas where the vehicle trips originated.

$76,067

The average monitored road in Gaston County, North Carolina carries 8,093 vehicles per day. Across its 493 miles of monitored roads, that adds up to 5,279,763 vehicle-miles traveled per day (≈1.9 billion per year). Trucks are 9.7% of traffic, close to the 8.7% across North Carolina.

Busier roads than 88% of counties in North Carolina

Gaston sees 28% higher average daily traffic volume than the state average (8,093 vehicles per day against 6,332), suggesting more demand on each road - a busier backdrop for retail sites, at the cost of slower access. Network-wide, Gaston accounts for about 1.9% of North Carolina's statewide total of vehicle-miles. By volume, Gaston's 8,093 vehicles per day outpaces 88% of counties in North Carolina.

At 33.9 minutes, the average travel time is 5% higher than the state level. 75% of counties in North Carolina have a shorter average travel time than Gaston's 33.9 minutes.

The congestion ratio of 20.5% runs slightly higher than the state level (10% higher) - crucial for traffic control improvement and logistics planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Gaston County, North Carolina

Trafficvehicles per day20,464
Trucks14.6%
Average travel time46.7 min
Congestion ratio31.0%
Drivers’ average age45.6 yrs
Drivers’ average income$73,135

Travel in Gaston County, North Carolina splits roughly evenly, with about half of it (48% of vehicle-miles) on highways. The average highway carries 20,464 vehicles per day, 167% more than the average non-highway road in the same area, which carries 7,671 vehicles per day.

With 17% of the road miles (82 miles in 470 segments), highways punch above their length, carrying 2,547,312 vehicle-miles traveled per day (≈930 million per year).

90% of counties in North Carolina move less traffic on their highways.

The most highway trucks of any county in North Carolina

Highway truck concentration here runs 21% higher than the state average, at 14.6%. Highways here lean toward freight, so highway access is a real asset for logistics operators.

By truck concentration, highways here outrank 79% of counties in North Carolina. At roughly 4,540 trucks per day, Gaston carries the highest volume of highway trucks in North Carolina.

non-highway traffic icon

Non-highway Traffic in Gaston County, North Carolina

Trafficvehicles per day7,671
Trucks5.0%
Average travel time33.5 min
Congestion ratio20.1%
Drivers’ average age46.8 yrs
Drivers’ average income$77,470

Travel in Gaston County, North Carolina splits roughly evenly, with about half of it (52% of vehicle-miles) on local roads. On the average non-highway road, that comes to 7,671 vehicles per day.

Local roads make up 83% of the monitored road miles (411 miles in 13,768 segments) but carry less than their share of travel: 2,732,451 vehicle-miles traveled per day (≈997 million per year). The truck share on non-highway roads is 5.0%.

Drivers from higher-income areas than 80% of counties in North Carolina

Non-highway roads carry a truck concentration that's 65% lower than the highway network.

Non-highway congestion (20.1%) runs slightly higher than the state level (14% higher).

Trip origins here have higher average income than 80% of counties in North Carolina. Gaston's median driver age is lower than 79% of counties in North Carolina.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and PM peak 4:00 PM–6:00 PM, with volumes reaching approximately 81% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 8% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
Traffic is nearly flat through the year: even June–August, the busiest stretch, runs only +2% versus the annual average.
Lowest month:
January is the quietest month, with volumes -6% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Gaston County, North Carolina, the peak hour concentrates about 8% of the day's traffic, and traffic stays steady through the year (+2% in high season).

Gaston County vs. North Carolina Traffic Comparison

The average daily traffic per road sets Gaston County apart: 28% above the North Carolina average. Its highway truck share is also 21% above.

MetricGaston CountyNorth Carolina averageDifference
Traffic8,0936,332+27.8%
Truck % (Total Traffic)9.7%8.7%+10.7%
Truck % (Highway)14.6%12.1%+20.9%
Avg. Travel Time33.9 min32.3 min+5.0%

How Gaston County compares

Gaston County against nearby counties

Nothing in this table sets Gaston County sharply apart from the 4 areas nearest to it, though it has the third busiest roads of the five. The same kind of road, just less of it: traffic per road matches the areas around it while the network itself is smaller.

Gaston County and the 4 nearest county-level areas by centroid distance, with the North Carolina average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Gaston County8,0939.7%5,279,76333.9 min20.5%
Lincoln County, North Carolina6,9527.9%2,106,86032.2 min18.5%
Mecklenburg County, North Carolina12,2847.2%27,739,27232.2 min28.8%
York County, South Carolina8,5367.7%6,161,72433.4 min18.1%
Cleveland County, North Carolina4,37611.2%2,482,58531.7 min13.6%
North Carolina average6,3328.7%N/A32.3 min18.6%

Gaston County ranked within North Carolina

On highway truck volume, Gaston County tops the North Carolina field outright.

Gaston County ranked among 100 county-level areas in North Carolina (1 = highest); measures without data in every county rank a smaller field, down to 97.
MeasureGaston CountyNorth Carolina rank
Traffic volume (AADT)8,093#13 of 100
Highway vehicle-miles per day2,547,312#11 of 97
Truck share on highways14.6%#21 of 97
Highway trucks per day2,988#1 of 97
Average travel time33.9 min#26 of 100
Average driver income$76,067#21 of 100
Average driver age46.4 yrs#79 of 100

Gaston County ranks #1 of 97 on highway truck volume but #79 of 100 on average driver age - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Gaston County, North Carolina

Traffic concentrates on a few corridors: the three busiest roads average 94,614 vehicles a day, against 8,093 on the average road in Gaston County.

Cameron Morrison Bridge leads with 137,531 vehicles a day, 17,935 of them trucks (13.0%). That is 50% more than the next road, Sen Marshall Arthur Rauch Highway (91,427). It tops the truck ranking too, with the most trucks.

Freight stands out on Senator J. Ollie Harris Highway and I 85: trucks are 18.8% and 16.6% of the traffic there, against 9.7% county-wide.

Trips using Senator J. Ollie Harris Highway are long: a median of 49.3 minutes against 33.9 county-wide, the mark of a through route.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Cameron Morrison BridgeMotorway · 137,531vehicles17,935trucks · 13.0%
Road class
Motorway
Congestion ratio
72.6%
Median trip time
47.0 min
Drivers’ median age
44.3 yrs
Drivers’ average income
$80,953

Cameron Morrison Bridge is one of the more congested roads here: trips take 73% longer than at free-flow speed, against 20% county-wide.

2Sen Marshall Arthur Rauch HighwayMotorway · 91,427vehicles14,220trucks · 15.6%
Road class
Motorway
Congestion ratio
62.4%
Median trip time
48.3 min
Drivers’ median age
45.1 yrs
Drivers’ average income
$73,310

Delays build on Sen Marshall Arthur Rauch Highway: its congestion ratio of 62% over free-flow time is well above the county's 20%.

3I 85Motorway · 54,882vehicles9,139trucks · 16.6%
Road class
Motorway
Median trip time
46.5 min
Drivers’ median age
46.0 yrs
Drivers’ average income
$66,964

A main artery: I 85's busiest stretch carries 6.8 times the county average; trucks are 16.6% of it, above the county-wide 9.7%.

4Gastonia Dallas HighwayTrunk road · 39,356vehicles5,051trucks · 12.8%
Road class
Trunk road
Congestion ratio
47.1%
Median trip time
46.9 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$68,006

Gastonia Dallas Highway carries 4.9 times the county average on its busiest stretch, where the median trip lasts 46.9 minutes.

5Chester StreetTrunk road · 37,330vehicles4,093trucks · 11.0%
Road class
Trunk road
Congestion ratio
29.9%
Median trip time
46.0 min
Drivers’ median age
47.4 yrs
Drivers’ average income
$66,807

At 4.6 times the county average, Chester Street draws drivers from neighborhoods averaging $66,807 in household income.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Cameron Morrison BridgeMotorway · #1 by traffic137,531vehicles17,935trucks · 13.0%
2Sen Marshall Arthur Rauch HighwayMotorway · #2 by traffic91,427vehicles14,220trucks · 15.6%
3I 85Motorway · #3 by traffic54,882vehicles9,139trucks · 16.6%
4Senator J. Ollie Harris HighwayMotorway · 28,265vehicles5,300trucks · 18.8%
Road class
Motorway
Congestion ratio
43.1%
Median trip time
49.3 min
Drivers’ median age
47.4 yrs
Drivers’ average income
$62,394

The busiest stretch of Senator J. Ollie Harris Highway carries 3.5 times the county average; trucks are 18.8% of it, above the county-wide 9.7%.

5Gastonia Dallas HighwayTrunk road · #4 by traffic39,356vehicles5,051trucks · 12.8%
How to read these road counts
  • The first number is AADT, annual average daily traffic: the vehicles passing a point on an average day, both directions combined and trucks included. On a divided highway both carriageways are added together.
  • Traffic changes along a road, with more near interchanges and towns and less in open country. Every figure for a road describes its busiest stretch in the county, so the two rankings show the same numbers for the same road.
  • The second number is the trucks on that stretch, a part of its AADT. The bar splits the AADT into cars and light vehicles (blue) and trucks (amber).
  • See segment-level AADT for any road on TrafficZoom.

Data Sources & Methodology

The data presented on this page is derived from TrafficZoom's proprietary analytics platform, which aggregates and normalizes information from multiple sources, including:

Mobile device location data (anonymized and aggregated)

Road sensor networks and traffic counters

Historical traffic pattern databases

Public traffic count programs published by the

GastonDepartment of Transportation

Demographic Baseline for O-D Modeling

U.S. Census Bureau
All metrics represent estimates based on statistical modeling and are intended for strategic planning purposes.
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Data current as of:
Q3 2026

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Counties near Gaston County

The same traffic breakdown for the areas closest to Gaston County, North Carolina.

Need segment-level traffic data?

Identify traffic patterns street by street and analyze the exact corridors that matter to your project.