This page delivers traffic analytics for Lyman County, South Dakota. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Lyman County, South Dakota among 277 road miles divided in 702 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 2,080 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.
1,362
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
18.2%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
37.0 min
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
49.7 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$66,561
Our data indicates an estimated average traffic volume of 1,362 vehicles per day in Lyman County, South Dakota that results in 571,253 vehicle-miles traveled per day (≈209 million per year). The traffic stream is comprised of an average of 1 truck for every 5 vehicles. Typical time spent behind the wheel per trip is 37.0 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the South Dakota state averages: At 1,362 vehicles per day, the average monitored road in Lyman carries 57% less traffic than the state average of 3,156 vehicles per day - a critical factor for logistics and site planning. Across the whole network that adds up to 571,253 vehicle-miles traveled per day (≈209 million per year), roughly 2.3% of South Dakota's statewide total. At 37.0 minutes, the average travel time is 14% higher than the state level. By volume, Lyman's 1,362 vehicles per day outpaces 62% of counties in South Dakota. On travel time, Lyman runs longer than 49% 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.
3,182
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
19.2%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
60.6 min
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
49.4 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$68,186
A significant volume of traffic in Lyman County, South Dakota utilizes the highway network. The average highway carries 3,182 vehicles per day, 333% more than the average non-highway road in the same area, which carries 735 vehicles per day. That average covers 159 highway road miles divided in 180 segments (average segment length 4,652 ft), together carrying 512,391 vehicle-miles traveled per day (≈187 million per year). That is more highway travel volume than 90% of counties in South Dakota. Trucks constitute 19.2% of highway traffic.
Analytical insight
At 19.2%, highway truck share is 41% higher than the state average, marking Lyman as a significant freight corridor - underscoring the importance of highway access for logistics operators. 92% of counties in South Dakota see a lower highway truck share than Lyman's 19.2%. Lyman's highway truck count is higher than 73% of counties in South Dakota, at roughly 611 trucks per day.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
735
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
9.5%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
28.9 min
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
52.1 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$60,620
The non-highway road network in Lyman County, South Dakota supports a substantial volume of traffic. The average non-highway road carries 735 vehicles per day, 77% less than the average highway in the same area, which carries 3,182 vehicles per day. That average covers 118 non-highway road miles divided in 522 segments (average segment length 1,194 ft), together carrying 58,862 vehicle-miles traveled per day (≈21.5 million per year). Trucks constitute 9.5% of non-highway traffic.
Analytical insight
The concentration of trucks on non-highway roads is 50% lower than on highways. 49% of counties in South Dakota see shorter overall travel times than Lyman. Trip origins here have higher average income than 34% of counties in South Dakota. 54% of counties in South Dakota have a younger driver population than Lyman.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and PM peak 3:00 PM–7:00 PM, with volumes reaching approximately 77% higher than the daily average.
Weekend traffic:
Weekend volumes run about 14% above weekday levels.
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +48% versus the annual average.
Lowest month:
January is the quietest month, with volumes -40% versus the annual average.
Analytical insight
In Lyman County, South Dakota, the peak hour concentrates about 7% of the day's traffic, and seasonal swing is pronounced at +48% in high season.
Traffic Flow Profile Comparison
Metric
Lyman
South Dakota
Average
Difference
Traffic
1,362
3,156
-56.8%
Truck % (Total Traffic)
18.2%
10.3%
+77.0%
Truck % (Highway)
19.2%
13.6%
+41.3%
Avg. Travel Time
37.0 min
32.5 min
+14.0%
Frequently Asked Questions
The average daily traffic volume is calculated at 1,362 vehicles per day, providing a baseline for daily operations and site assessment.
Lyman carries more highway trucks by raw volume than 73% of counties in South Dakota, at roughly 611 per day.
Approximately 63% of highway traffic and 20% of non-highway traffic consists of vehicles whose trip originates outside Lyman 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.
The average travel time for drivers is 37.0 minutes, offering a standard metric for commute and delivery route planning.
Weekday peaks occur between 10:00 AM and 12:00 PM in the morning and between 3:00 PM and 7:00 PM in the evening - about 77% above the daily average.
Drivers on Lyman roads have a median age of 50 years, and the median household income of the neighborhoods trips originate from averages $66,561 - useful context for retail siting and customer profiling.
Traffic volumes are typically 48% higher during June–August. Volumes drop to their lowest levels in January, averaging 811 vehicles per day - a 40% decrease from the annual average.
Trucks account for approximately 18.2% of the total traffic mix across all road types, with a significantly higher concentration of 19.2% on highways.
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)
