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posted by janrinok on Saturday May 26 2018, @12:19AM   Printer-friendly

Uber Self-Driving Car That Struck, Killed Pedestrian Wasn't Set To Stop In An Emergency

An Uber Technologies Inc. car involved in a deadly crash in Arizona wasn’t designed to automatically brake in case of an emergency, the National Transportation Safety Board said in its preliminary report on the accident.

The self-driving car, which was being tested on a public road with a human operator, struck and killed a pedestrian in Arizona in March. Uber said Wednesday that it was closing down its self-driving vehicle program in the state, two months after Arizona barred it from road-testing the technology.

NTSB Preliminary Report Released

The NTSB has released a preliminary report on the Uber pedestrian accident in Arizona. This is being reported widely, but it took a little digging to find the actual report, which is linked from the NTSB press release at: https://www.ntsb.gov/news/press-releases/Pages/NR20180524.aspx The PDF report, 3-1/2 pages with several illustrations, can be downloaded directly with https://goo.gl/2C6ZCH

From the second page of the report:

Uber had equipped the test vehicle with a developmental self-driving system. The system consisted of forward- and side-facing cameras, radars, LIDAR, navigation sensors, and a computing and data storage unit integrated into the vehicle. 1 Uber had also equipped the vehicle with an aftermarket camera system that was mounted in the windshield and rear window and that provided additional front and rear videos, along with an inward-facing view of the vehicle operator. In total, 10 camera views were recorded over the course of the entire trip.

The self-driving system relies on an underlying map that establishes speed limits and permissible lanes of travel. The system has two distinct control modes: computer control and manual control. The operator can engage computer control by first enabling, then engaging the system in a sequence similar to activating cruise control. The operator can transition from computer control to manual control by providing input to the steering wheel, brake pedal, accelerator pedal, a disengage button, or a disable button.

The vehicle was factory equipped with several advanced driver assistance functions by Volvo Cars, the original manufacturer. The systems included a collision avoidance function with automatic emergency braking, known as City Safety, as well as functions for detecting driver alertness and road sign information. All these Volvo functions are disabled when the test vehicle is operated in computer control but are operational when the vehicle is operated in manual control.

According to Uber, the developmental self-driving system relies on an attentive operator to intervene if the system fails to perform appropriately during testing. In addition, the operator is responsible for monitoring diagnostic messages that appear on an interface in the center stack of the vehicle dash and tagging events of interest for subsequent review.

On the night of the crash, the operator departed Uber's garage with the vehicle at 9:14 p.m. to run an established test route. At the time of the crash, the vehicle was traveling on its second loop of the test route and had been in computer control since 9:39 p.m. (i.e., for the preceding 19 minutes).

According to data obtained from the self-driving system, the system first registered radar and LIDAR observations of the pedestrian about 6 seconds before impact, when the vehicle was traveling at 43 mph. As the vehicle and pedestrian paths converged, the self-driving system software classified the pedestrian as an unknown object, as a vehicle, and then as a bicycle with varying expectations of future travel path. At 1.3 seconds before impact, the self-driving system determined that an emergency braking maneuver was needed to mitigate a collision (see figure 2). 2 According to Uber, emergency braking maneuvers are not enabled while the vehicle is under computer control, to reduce the potential for erratic vehicle behavior. The vehicle operator is relied on to intervene and take action. The system is not designed to alert the operator.


Original Submission #1Original Submission #2

 
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  • (Score: 0) by Anonymous Coward on Saturday May 26 2018, @05:25PM

    by Anonymous Coward on Saturday May 26 2018, @05:25PM (#684596)

    I just wanted really fucking drive it home just how much I shouldn't have to painstaking explain this fucking shit to you.

    And yet, here we are.