Self-driving car on Moscow streets after snowfall [video]
youtube.com
youtube.com
Mind you, self-driving when snow has coated all your landmarks is definitely impressive, but the title made me think it'd be driving in snow. Which it isn't. The roads are, what we'd call in Chicago, "clear". The car is not driving in/on snow or ice in this scenario, which is something I do regularly every winter.
https://www.google.com/search?client=ubuntu&channel=fs&q=coq...
The idea would to put the smart tech in the car. What's going at the roadside could be made very cheaply and integrated into existing features without needing to rip up the entire road.
Other countries have toll highways which are well maintained, that's another option for installation.
I don't see this happening in rural/country lanes, the cost would be obscene (but again, we do liberally use reflectors in the UK). I also don't see this as a panacea, it would simply be a backup in horrendous weather.
Plus there's also no incentive for anyone to waylay the smart road off the physical road, because there are no evil people (i.e. with motives that are incompatible with the vehicle's survival).
TL;DR: good roads will be getting better, bad roads won't.
Since off-road use for smart cars is comparatively small, we should optimize the roads to be smart-car friendly.
Perhaps we could install systems which would enable smart cars to stay in lanes, perhaps with some hardware preventing the smart cars from going off-road.
And while we're there, we could also have systems providing charge built right into the road! Wouldn't that be neat?
The lane-keeping and power systems could allow regular cars to operate on the same roads, for backwards compatibility reasons.
Sounds too expensive to build? Not until you realize that you've re-invented the infrastructure for trams and trolleys put in place a 100 years ago.
https://twitter.com/elonmusk/status/753843823546028040
Radar has been used on snowploughs to avoid rocks/curbs/etc buried in the snow (article from 2004):
http://www.nature.com/news/2004/040302/full/news040301-2.htm...
Ford developed a LIDAR algorithm that can "detect" snow flakes and still be effective, this video shows driving in real snow:
https://qz.com/637509/driverless-cars-have-a-new-way-to-navi...
Computers can provide near "perfect" speed/traction ratios based on active road conditions... which humans are merely estimating based on "feel", without instant direct feedback from the wheel traction sensors, combined with whatever (potentially limited) winter driving experience they have.
Computers can also "remember" any specific location of the route from hundreds of thousand of other rides in the past and of other cars on the road communicating in real time.
In 5yrs I'd expect to prefer putting my trust in any self-driving car on winter roads over a human any day...
And if there is self-driving zones, and non-self-driving zones, you better believe I still expect my normal car to work if I drive it from Chicago down to San Francisco.
Sometimes only one car, if the timing works out that way. Three is almost certainly too many. The ability of a car to judge the light timing requires near 180 degree vision and head pivoting on the part of a driver.
Even all cars become autonomous, the problem will still be hard I believe. Hard coded rules may solve the problem but relying on communication and cooperation will not be easy.
Of course, this only allows one car (or maybe two, if the intersection is particularly large) per light cycle, which isn't much. People who enter the intersection on the yellow or red light (tailing the person who was in the intersection waiting to turn left) are turning illegally.
The real trick against gridlock is to equate the switch to green not as "go", but as "go, once the previous wave has cleared the intersection". The "don't enter before there is room for your car on the far side" is only an optimization on top of that.
The way traffic works is somewhat dependent on region. I can go to another city an hour away and already feel a bit alien traffic wise there. This is relevant in discussion on autonomous vehicles: in any foreseeable future we need them to coexist with human drivers and abide by unwritten "everyone drives like that here" rules.
This is the case for NY state, see VTL 1175: http://www.safeny.ny.gov/rowa-vt.htm
https://leginfo.legislature.ca.gov/faces/codes_displaySectio...
21452. (a) A driver facing a steady circular yellow or yellow arrow signal is, by that signal, warned that the related green movement is ending or that a red indication will be shown immediately thereafter.
(GP: That's actually easy: random exponential binary backoff. It works for other domains quite well.)
"Works great near my house, might accidentally kill you if you try to ride it outside the happy path" is somewhat underwhelming.
Which may make the auto driving easier.
So giant piles of snow often means that all of your reference points on your fancy 3D map of the road are now obscured by piles of snow, and you still have to be able to position the car well enough that you know when to look for stoplights, crosswalks, and the like.
This: http://bgr.com/2018/02/06/moscow-snow-russia-winter-storm/
Is what it looked like ~two weeks ago. Show me your self-driving car in THAT.
And the top cap for the city is 60 (except for things like https://en.wikipedia.org/wiki/Moscow_Ring_Road, you can also go to 80 when overtaking and many people abuse this rule to go ~80 all the time)
Wouldn't any pedestrian detection decide the person in the road has priority and stop and let them cross? It isn't capable of reading a person's intention to stand there vs. cross or not.
The title claims it supports interactions with pedestrians, and the video does seem to show it pausing in the middle of a turn once for a pedestrian in the road, but that could be easily faked by having the driver still using manual breaks.
https://www.youtube.com/watch?v=Bx08yRsR9ow&feature=youtu.be...
That pedestrian is already in the street and they momentarily stutter then pass the pedestrian with very little room.
That and the way the steering seems super sensitive to various snow remainders on the side of the street. It's almost as if it's controlling for its position relative to the snow instead of picking a mostly straight trajectory.
Considering the amount of traffic-related deaths in Russia... They'd better handle it like non-native driver.
Yes, I also noticed it, it seems like there are continuous micro (and not so micro) corrections on the steering wheel, with such behaviour the passenger (besides the driver that has some more chances, being attentive to the road, to not get it) is likely subject to get car-sickness.
If self-driving cars are to use the current infrastructure and drive as a regular car on regular roads then better be able to handle this.
For snow-covered roads we'll have to wait for reports from, say, Chelyabinsk. Or Tomsk, or Novosibirsk...
(I feel like this question must have been brought up a number of times already, since these projects have been going on for a while by now.)
The dream that the developers, the media, and many of us share is to change the world by making driving a thing people do not do. Matching a human driver in the most treacherous conditions is a major, and unmet milestone. This is a misleading post.
This tech, as-is, could probably save millions in damage on minor or one-car accidents in snowy aftermath. Even if it snows once or twice a year, somehow everyone forgets how to drive safely in the snow and Every.Single.Time there is snow the world just stops.
Unrelated to this video, I was impressed with my Subaru EyeSight performance in a whiteout rainstorm. I could tell what was going on - barely, with the wipers at full tilt - and my auto-cruise worked without a hitch at > 50MPH for several minutes straight. It's definitely hit-or-miss though, since sometimes it gets confused on a bright overcast day at 25MPH.
Would love to see them trying to drive anywhere else in the city though.
But seriously, what does the car need the wipers for? All the sensors are outside anyway, no?
The video deserves a second view, with a proper BSO :-)
This isn’t as impressive as I was led to believe. Those roads are completely exposed!
Only when you are outside of apartments' territory.
http://pddmaster.ru/pdd/pravila-dorozhnogo-dvizheniya-dlya-z...
Roads that are usually 2 lanes become 1 lane when snow accumulates enough. People improvise to get where they want anyway - the 2 lanes at the traffic light which are normally one lane for turning and one for straight - is now just 1 lane for both turns and straight because of accumulated snow. The AI would need to observe other drivers (and pray they aren't all AI drivers) because stored map info will not work.
As a driver you have to be able to guess whether something that looks like a 1ft ridge of snow is actually passable drift powder snow, or a frozen barrier of ice that will damage the car or get you stuck if you drive through it.
Sorry if I'm being ignorant (where I live, below 20°C is really cold weather, and the lowest it gets is around 10°C, which I don't recall ever seeing), but wouldn't heaters be enough?
VW has a good solution for their rear camera which is actually hidden under a hatch (the VW emblem) so it’s protected when unused.
I’m picturing that future autonomous cars will need this type of solution for many sensors, similar to the “flip up headlights” of some 80s cars. Not least because lidars are also very expensive so you may not want them easy to grab from a parked car.
Of course, in mountainous winter, I've had wiper fluid freeze when it got to the windshield of a warmed up, running, moving car - had to stop and scrape off what was essentially a rubbing alcohol solution: even heating wouldn't help when local temperature goes to -40 (either scale ;)).
In normal conditions, your car stops in a predictable way, at predictable speeds. It doesn't slide. It doesn't follow cut-paths in the road. Acceleration is a simple function.
Think that you've adjusted for these parameters? Well, the ground you've driven to has more snow on it then before. Or you're elevation has decreased so the snow:ice ratio has shifted towards the later.
And the above only describes the situation if you are one of the few people on the road. Add in all the other drivers who are acting _strangely_ in terms of performance and psychology. Driving lanes shift depending on where the road is clear, typically centering (bringing sliding cars closer together).
Never mind people FOOLISHLY walking on the road (the sidewalks are covered in snow).
Driving in cities in summer requires a high degree of attention and quick responses to others. But it is just a matter of interpretation and response. Winter driving is an art...
In the best case, visibility restriction is limited to the sides of the roads, like in this video. In the worst cases, there is barely any indication of where the road is, and signs are also covered in snow. GPS is being blocked by the storm overhead. Forward visibility is down to being measured in tens of feet, from 10 miles only five minutes earlier.
As for the vehicle itself and the electronics: in winter, they will need to function pretty much perfectly at up to -40°. Cars, if left outside, can be covered in layers of over 6" thick of snow and/or ice - and not always just on the top.
While operating on winter roads, they will be exposed to a constant spray of slush and snow, combined with salt and sand. This spray will coat the grills and tails of cars. My vehicle has parking assist and radar assisted cruise control; neither of which work after driving down a road with fresh snow. Even the otherwise protected rear view camera gets coated in muck just from the aerodynamics of the car's tail.
None of this is impossible to overcome, but the typical "it's just an engineering problem" is aggravating to hear.