ROAD SAFETY ANALYSIS
Idaho Road Safety Analysis
Behavioral Insights Powered by StreetVision
The following road safety report evaluates road risk events in Idaho from January 2026 through March 2026. It examines phone distraction rates, intersection-level hard braking activity, and corridor-level speeding patterns to determine where risk is most concentrated.
The report leverages insights from CMT’s StreetVision, an AI-powered behavioral analytics platform that provides decision-ready insights into roadway risk before crashes occur. Transportation officials use StreetVision to identify hotspots, prioritize high-impact safety interventions, and evaluate the effectiveness of countermeasures.
Here is a snapshot of our findings — covering distraction benchmarking, county-level concentration analysis, high-risk intersection identification, and corridor speeding patterns.
01 PHONE DISTRACTION
Monthly distraction rates: A comparison to the national benchmark
In January 2026, drivers in Idaho recorded 21.59 phone tapping events per 100 miles, compared to the national average of 23.55, placing the state 8.3% below the US benchmark.
In February, the rate was 21.8, a 0.97% increase from the prior month, and 9.4% below the national average.
By March, phone tapping events decreased to 21.55 events per 100 miles, marking a 1.2% decrease from February. It was 9.3% lower than the US average.
phone tapping events per 100 miles
02 COUNTY ANALYSIS
County-level insights reveal concentrated rates of distracted driving
Across the three-month period, Indiana averaged 21.65 phone tapping events per 100 miles, though county-level data shows wide variation around that benchmark.
The most distracted counties, led by Twin Falls, Bonneville, and Gem, recorded distraction rates roughly 5% – 15% above the state average, highlighting concentrated pockets of elevated risk.
In contrast, the least distracted counties, led by Oneida, Lemhi, and Boise, reported rates roughly 50% – 53% below the statewide average, underscoring a clear regional divide in driver behavior.
phone tapping events per 100 miles
Highest Distraction
Twin Falls County
27.4
+26.56%Bonneville County
26.3
21.48%Gem County
24.9
+15.01%Madison County
24.8
+14.55%Canyon County
24.3
+12.24%Lowest Distraction
Boise County
11.2
-48.27%Lemhi County
11.9
-45.03%Oneida County
12
-44.57%Custer County
12.5
-42.26%Adams County
13.2
-39.03%
03 HARD BRAKING
High risk intersections: Where hard braking signals elevated crash risk
Intersections account for roughly 25% of all US traffic deaths and 50% of all traffic injuries. Hard braking often signals near-miss events, making it a leading indicator of elevated crash risk.
An analysis of Canyon County intersections found US 20/US 26 & Gotsch Road to be a high-risk hotspot, with 470 hard braking events per 100 miles driven.
highest risk
US 20/US 26 & Gotsch Road
470.3
hard braking events / 100 mi
other high risk intersections in Idaho
Hard Braking Events per 100 miles
Locations with persistently high hard braking activity are widely recognized as candidates for proactive intervention — where targeted engineering improvements, enforcement visibility, or behavioral countermeasures may reduce crash risk before crashes occur.
04 SPEEDING PATTERNS
When & Where Speeding Risk Peaks
Speeding behavior in Idaho follows identifiable time-of-day and corridor-level patterns, creating predictable windows of elevated risk.
On the Vietnam Veterans Memorial Highway, in Boise ID (45 mph), speeding peaks on Saturdays at 5:00 a.m., when 16% of driving time exceeds 10 mph over the limit. Additional elevated speeding periods include Sundays at 5:00 p.m. and when 10.4% of of driving team exceeds the speed limit
These patterns provide actionable intelligence for speed studies, high-visibility enforcement, public awareness campaigns, and resource allocation decisions.
CORRIDOR ANALYSIS
Vietnam Veterans Memorial Highway
Posted speed limit: 65 mph
Saturdays: 5:00 a.m.
16%
of driving time exceeds the posted speed limit
Mondays: 5:00 p.m.
10.4%
of driving time exceeds the posted speed limit
These patterns provide actionable intelligence for speed studies, high-visibility enforcement, public awareness campaigns, and resource allocation decisions.
05 SCHOOL ZONES
How fast are drivers going in school zones?
We analyzed speed distribution in the school zone at Collister Elementary School on W Catapla Drive in Boise, ID. Our analysis found that 22% of drivers exceed the 25 mph speed limit between 6:00 a.m. to 6:00 p.m. Thursday at 9:00 a.m. had the highest rate of speeding, with 39.7% of drivers going over the limit.
Understanding how frequently speeding occurs during school hours helps traffic engineers determine whether stronger safety measures are needed to better protect vulnerable road users.
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