Tempe Police Release Video of Uber Accident

Post by pdonis » Thu, Mar 22, 2018, 12:24 AM UTC

eanzenberg wrote: post #181

pdonis wrote: post #168

Earlier quoted context omitted.

> I have better night vision than this camera, I feel as a human I would have seen the bike. I'm not so sure. Under conditions where there is low light everywhere, so the eye has time to adapt, human low light vision is very good. But under the conditions shown in the video, where there are street lights present and the pedestrian comes out from a gap between the street lights, your eye won't be dark adapted and you…

This is literally the reason for high-beams. If the road is not illuminated enough you turn those on and drive as fast as you are comfortable being able to fully stop if a deer jumps out of left field (or in this case, a pedestrian is walking across the road).

Post by hcknwscommenter » Thu, Mar 22, 2018, 12:24 AM UTC

gok wrote: post #188

atonse wrote: post #25

How did LIDAR and IR not catch that? That seems like a pretty serious problem. It's clear from the video that a human driver actually would've had more trouble since the pedestrian showed up in the field of view right before the collision, yet that's in the visible spectrum. When I argue for automated driving (as a casual observer), I tell people about exactly this sort of stuff (a computer can look in 20 places at t…

In pitch darkness, IR cameras can only see more than a visual light camera if you somehow had IR headlights that were more powerful than the visual headlights (they probably don't; that would blind other AVs just like high beams blind other drivers). It doesn't grant you the ability to see in the dark with infinite range. Lidar can sense shapes with more range, but at the cost of dramatically worse resolution and lat…

Post by dragonwriter » Thu, Mar 22, 2018, 12:24 AM UTC

freehunter wrote: post #42

jonknee wrote: post #30

Earlier quoted context omitted.

> there is no such thing as a too reflective vest for bicyclists And to not jaywalk a bike across a street in the dark!

Since I've seen this be a very controversial statement here in the past, I'd just like to point out to everyone that American drivers on four lane roads are not expecting pedestrians to be in the middle of the road and not at a crosswalk. That is not a normal thing to happen in America, and no one expects it to happen. It is a very rare situation. --edit: okay guys... no where did anyone argue that you shouldn't be w…

Post by ghaff » Thu, Mar 22, 2018, 12:25 AM UTC

nkurz wrote: post #115

1) I'd hope and assume that an autonomous vehicle would have better sensors than a single mounted video camera. It does have other sensors that it uses, right? Were they all operational? What do they show? Combined, do they have dynamic response comparable to the human eye? 2) The road seems really dark. Are the headlights intentionally dimmed here? At night, on a empty road with no opposing traffic, shouldn't the he…

Post by [deleted] » Thu, Mar 22, 2018, 12:25 AM UTC

burger_moon wrote: post #89

lhorie wrote: post #10

When I cross-reference the lane lines at 0:03 with google maps[1], I get an estimate of the car being about 60ft-70ft away from the victim when I was first able to spot her shoe in the video. Some googling[2] says human reaction at 40mph would've taken 59ft, with an additional 80ft of actual stopping time. This seems in line with the police report that "it would have been difficult to avoid this collision in any kind…

The speed limit is only 35 not 40 on that road unless we're looking at different roads? If the driver is paying attention they could turn the wheel a bit and split the left lane (there doesn't appear to be anyone else on the road) and avoid the person who was half way through the lane at time of impact. Might not clear the person but clipping the back of the bike would certainly be better than a direct impact. You wo…