Samsara Safety Event Review Service

Safety Event Review is an optional add-on service for large fleets of 500 vehicles or more. With this service, Samsara's specialized review team streamlines the Safety Event Review process by performing the initial event review, filtering, and tagging safety events for your fleet. Samsara reviewers will review safety events within 24 hours and identify incidents that require coaching so that you can focus on coaching drivers.

With the Safety Event Review service, crash, mobile use, and obstructed camera events are automatically routed to the Safety Inbox. These events will have a Needs Review Status. All other events are routed to a Samsara reviewer for analysis. When a reviewer assesses a safety event, the reviewer raises only highly-relevant, coachable events to the Safety Inbox. If an event doesn’t meet the threshold of coachable behavior, the reviewer will dismiss the event. As a result, you will see fewer events than you would without the Safety Event Review service.

Safety Event Review Rubric

Safety event labels can help you to identify the behavior for which a driver needs coaching. There are two types of event labels: automatically assigned labels and labels assigned by a Samsara reviewer. Automatically assigned labels include events, such as crashes, that have defined threshold settings to trigger assignment. Additional supplemental labels can also be assigned by reviewers after reviewing a safety event.

The following table describes the event labels that identify behaviors that require coaching:

Event Label	Coachable Event Definitions
Automatically detected events
Crash	Samsara automatically detects crashes when g-force passes a crash threshold. Automatically detected crash events skip manual triage for safety events and are automatically routed to the Safety Inbox as Needs Review. If Samsara did not automatically identify the event as a crash, such as events with a low g-force or side swipe, the Samsara reviewer will manually add the crash label and route it to your Safety Inbox for your review.
Harsh Accel	The vehicle accelerated drastically or abruptly (16+ mph in ≤ 2 seconds). Harsh Accel events are routed for review only if the Samsara reviewer identifies a second coachable behavior that occurred during the time of the event.
Harsh Brake	The vehicle slowed down drastically or abruptly (16+ mph in ≤ 2 seconds). Harsh Brake events are routed for review only if the Samsara reviewer identifies a second coachable behavior that occurred during the time of the event.
Harsh Turn	The vehicle turned drastically or abruptly (19+ mph midpoint of turn). Harsh Turn events are routed for review only if the Samsara reviewer identifies a second coachable behavior that occurred during the time of the event.
Following Distance	An unsafe following distance (<1 second) from the vehicle directly in front was detected. If a driver was cut off by another vehicle or the vanishing point is miscalibrated, the Samsara reviewer will not route the event to your Safety Inbox for review.
Inattentive Driving	Any repeated occurrence where the driver is not paying full attention to the road (looking down at an object continuously or multiple times visible or not) for at least 1.5 seconds of a 5 second video, or 3 seconds of a 10 second video. Some scenarios that constitute inattentive driving include: Looking inside and away from the road (typically down) Reaching for the dashboard while looking away from the road Using a mobile device while looking down Eating or smoking in the cab while looking down Talking to a passenger while looking at the passenger or down Driver has no hands on the steering wheel for the duration of the video Note If the Driver looks away from the road 3 or more times, it is counted as inattentive driving. Example: If the driver looks away and back up at the road, then back away from the road, so long as they are looking away at least once every 2 seconds, the behavior counts as inattentive driving.
Rolling Stop	The driver did not slow to 0 mph before entering an intersection or impeded a pedestrian’s ability to cross within a crosswalk. A Rolling Stop event could also be raised if: The driver did not slow to between 0 to 3 mph before entering the midpoint of the intersection with a visible stop sign and the video shows the driver stopping before white stop line or at the stop sign. The driver stopped on or before a white stop line and the vehicle clearly impeded it and did not make a complete stop. The driver stopped in a crosswalk or pedestrian lane (in the absence of a white stop line) and the vehicle impeded or blocked pedestrians from crossing or did not make a complete stop. There are movable stop signs on intersections with broken traffic lights. In this scenario, movable stop signs will be considered as legal stop signs. There is a blinking red light at an intersection with or without a stop sign, our driver did not make a complete stop with considerations on the conditions mentioned. The vehicle did not stop (below 3 mph) for stop signs linked to entrances and exits of a parking lot. The event should be dismissed if there isn't a corresponding video with footage at least 2 seconds before the stop sign and 2 seconds after the vehicle passes through the middle of the intersection.
Supplemental labels added by reviewers
Defensive Driving	The driver reacted within 2 seconds to a potential safety event caused by an unexpected occurrence, such as a sudden change in traffic lights or the behavior of another individual. If the Samsara reviewer identifies a Defensive Driving behavior, the event is raised to the Safety Inbox with a Needs Recognition status and an event label of Defensive Driving.
Did Not Yield	The driver failed to allow merging or right-of-way to a person or vehicle if the current driving conditions would have allowed it. Note Does not apply to YIELD signage.
Drowsy	Driver behavior that commonly indicates drowsiness was detected including any of the following: Appearance of nodding off Eye closing Face slapping Eye rubbing
Lane Departure	Any erratic, swaying driving that resulted in an inability to maintain position in a lane. Additionally, the center of the vehicle clearly crossed a line continuously for 3+ seconds, completed an illegal U-turn, or drove through marked lines in a parking lot. Note Excludes a legal lane change, necessary wide turns, and narrow roads.
Late Response	The driver did not react to surrounding conditions (brake lights, traffic light, or slowdowns) within 2 seconds.
Mobile Usage	The driver held or handled a mobile device, laptop computer, or tablet. The Samsara reviewer detected multiple holding positions including in the lap.
Near Collision	The vehicle came close to colliding with an object, regardless of whether the object was moving.
No Seatbelt	The driver did not use the seatbelt at all, wore it improperly, wore it excessively loose, or left the seatbelt unbuckled. To be considered a No Seatbelt event, the shoulder belt is away from the driver's neck (but not off the driver's shoulder) and across the driver's chest (between the breast area).
Speeding	The vehicle speed was more than 19 mph in a parking lot or more than 6 mph over either the posted limit or yellow speed advisory sign.
Ran Red Light	The driver did not slow to 0 mph before entering the mid-point of intersection with a visible red light or the vehicle impeded a pedestrian’s ability to cross within crosswalk.
Obstructed Camera	Interior-facing camera: The driver face, including eyes and mouth, were blocked from the interior-facing camera. Interior view was more than 80% obstructed. Road-facing camera: The road was blocked and not clearly visible from the road-facing camera. Road view was more than 80% obstructed.

Provide Feedback to the Safety Event Review Team

To help tune the review process, you can provide feedback to Samsara on the accuracy of event labels and detection.

When a reviewer misclassifies a safety event and assigns an incorrect label:

1. From the Safety Inbox view of an event, hover over the video.

   Samsara displays a popup for you to provide feedback.

   

2. If the event is accurate, click the thumbs up icon.

3. If the event is inaccurate either in the detection or the label, select the thumbs down icon.

   Samsara displays a feedback form that you can use to provide feedback. The options vary depending on the event type.

4. Choose the option that best represents your assessment of what triggered the safety event.

   

   If the options don't reflect your assessment, choose Other and provide further explanation or details.

5. Submit your response. If you only want to submit your rating and do not want to provide additional details, you can Dismiss and submit.

   Your assessment helps Samsara improve the detection capabilities.