Full explanation
The Unsafe Driving BASIC is one of seven CSA safety categories that evaluates a motor carrier's driving-related safety violations observed during roadside inspections. It captures violations such as speeding, reckless driving, improper lane changes, following too closely, texting/phone use while driving, failure to wear a seatbelt, and failure to obey traffic signals. The intervention threshold is the 65th percentile — carriers scoring above this face warning letters, targeted inspections, or comprehensive investigations. Unsafe Driving has the strongest correlation with future crash risk of any BASIC category, making it the most scrutinized metric by safety professionals, insurance underwriters, and freight brokers during carrier vetting. Violations are time-weighted (more recent events count more heavily) and severity-weighted (texting while driving is weighted more heavily than a seatbelt violation). A carrier's Unsafe Driving score reflects both the frequency and severity of its drivers' on-road behavior patterns over the most recent 24 months.
Source: FMCSA: Unsafe Driving
Frequently asked questions
What counts as an Unsafe Driving violation?
Speeding (any amount over limit), reckless/careless driving, lane departure violations, following too closely, texting or phone use, failure to use seatbelt, running red lights/stop signs, failure to yield, and driving while impaired.
Why is Unsafe Driving the most important BASIC?
Research shows the Unsafe Driving BASIC has the highest correlation with future crash involvement. Carriers with high Unsafe Driving scores are statistically much more likely to be involved in accidents than carriers with high scores in other categories.
Can a single ticket raise a carrier's Unsafe Driving score significantly?
For small carriers with few data points, yes. A single serious violation (e.g., texting while driving) can push a small carrier above the intervention threshold, especially if they have limited inspection history to dilute the score.
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