This page delivers traffic analytics for Roberts County, South Dakota. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Roberts County, South Dakota among 357 road miles divided in 1,701 segments. Our metrics go beyond simple volume counts to provide actionable insights on traffic intensity, congestion, commercial vehicle flow, and network performance with highest possible granularity (average segment length is 1,110 ft). Whether you are evaluating a new retail location, planning logistics routes, or assessing infrastructure needs, this data helps you move from assumptions to certainty.
Data sourced from TrafficZoom's proprietary analytics platform.
The average number of vehicles that travel each day over any road in the road network.
939
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
13.6%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
41.3 min
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
50.4 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$64,900
Our data indicates an estimated average traffic volume of 939 vehicles per day in Roberts County, South Dakota that results in 364,983 vehicle-miles traveled per day (≈133 million per year). The traffic stream is comprised of an average of 1 truck for every 7 vehicles. Typical time spent behind the wheel per trip is 41.3 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the South Dakota state averages: At 939 vehicles per day, the average monitored road in Roberts carries 70% less traffic than the state average of 3,156 vehicles per day - a critical factor for logistics and site planning. In total volume terms, its road network carries 364,983 vehicle-miles traveled per day (≈133 million per year), about 1.5% of South Dakota's statewide total. At 41.3 minutes, the average travel time is 27% higher than the state level. 35% of counties in South Dakota see less traffic than Roberts's 939 vehicles per day. On travel time, Roberts runs longer than 75% of counties in South Dakota.
Highway vs. Non-Highway Traffic Analysis
Highway Traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
2,052
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
16.1%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
59.5 min
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
48.7 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$65,635
A significant volume of traffic in Roberts County, South Dakota utilizes the highway network. The average highway carries 2,052 vehicles per day, 152% more than the average non-highway road in the same area, which carries 815 vehicles per day. That average covers 118 highway road miles divided in 170 segments (average segment length 3,665 ft), together carrying 249,901 vehicle-miles traveled per day (≈91.2 million per year). By highway travel volume, Roberts outranks 62% of counties in South Dakota. Trucks constitute 16.1% of highway traffic.
Analytical insight
Highway truck concentration here runs 19% higher than the state average, at 16.1% - positioning Roberts as a significant freight corridor. For logistics operators, this validates the importance of highway access. Roberts's highway truck share (16.1%) is higher than 79% of counties in South Dakota. By raw truck volume, Roberts carries more highway trucks than 50% of counties in South Dakota.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
815
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
8.3%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
39.2 min
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
51.0 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$64,578
The non-highway road network in Roberts County, South Dakota supports a substantial volume of traffic. The average non-highway road carries 815 vehicles per day, 60% less than the average highway in the same area, which carries 2,052 vehicles per day. That average covers 239 non-highway road miles divided in 1,531 segments (average segment length 826 ft), together carrying 115,082 vehicle-miles traveled per day (≈42.0 million per year). Trucks constitute 8.3% of non-highway traffic.
Analytical insight
Non-highway roads carry a truck concentration that's 49% lower than the highway network. 75% of counties in South Dakota see shorter overall travel times than Roberts. Roberts's average driver income exceeds 31% of counties in South Dakota. The driver population here skews older than 60% of counties in South Dakota.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 8:00 AM–12:00 PM and PM peak 3:00 PM–7:00 PM, with volumes reaching approximately 68% higher than the daily average.
Weekend traffic:
Weekend volumes run about 3% below weekday levels.
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +16% versus the annual average.
Lowest month:
January is the quietest month, with volumes -19% versus the annual average.
Analytical insight
In Roberts County, South Dakota, the peak hour concentrates about 7% of the day's traffic, and seasonal swing is pronounced at +16% in high season.
Traffic Flow Profile Comparison
Metric
Roberts
South Dakota
Average
Difference
Traffic
939
3,156
-70.2%
Truck % (Total Traffic)
13.6%
10.3%
+32.6%
Truck % (Highway)
16.1%
13.6%
+18.6%
Avg. Travel Time
41.3 min
32.5 min
+27.1%
Frequently Asked Questions
The average daily traffic volume is calculated at 939 vehicles per day, providing a baseline for daily operations and site assessment.
Roberts's average travel time of 41.3 minutes is longer than 75% of counties in South Dakota.
Traffic volumes are typically 16% higher during June–August. Volumes drop to their lowest levels in January, averaging 758 vehicles per day - a 19% decrease from the annual average.
Drivers on Roberts roads have a median age of 50 years, and the median household income of the neighborhoods trips originate from averages $64,900 - useful context for retail siting and customer profiling.
Weekday peaks occur between 8:00 AM and 12:00 PM in the morning and between 3:00 PM and 7:00 PM in the evening - about 68% above the daily average.
The average travel time for drivers is 41.3 minutes, offering a standard metric for commute and delivery route planning.
Trucks account for approximately 13.6% of the total traffic mix across all road types, with a significantly higher concentration of 16.1% on highways.
Approximately 46% of highway traffic and 8% of non-highway traffic consists of vehicles whose trip originates outside Roberts County, South Dakota. This indicates that a portion of highway traffic is regional pass-through, while local roads are more representative of resident and commuter activity.
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)
