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The latest chapter for the self-driving car: mastering city street driving

googleblog.blogspot.com

101–110 of 455 posts

Re: The latest chapter for the self-driving car: mastering city street driving

#101
post #77

Earlier quoted context omitted.

I'm a cyclist as well as a driver and I give a lot of space to cyclists when overtaking them but I don't see that working too well. When cyclists/pedestrians get used to the system they will start to abuse it and rely on the systems to force the vehicles to avoid them/stop. Also what defines too close? If you stray 1mm inside that zone do the brakes come on hard regardless of other traffic? What happens when the cycl…

Autonomous braking exists for those kinds of events: When a person steps out in front of a car, for example. Yet I don't see people deliberately jumping out in front of cars just to mess with them.

It's pretty clear why, because there are too few cars with automatic breaks. When 100% of the cars have them, you might see it.

Re: The latest chapter for the self-driving car: mastering city street driving

#102
post #5

This is hardly city driving. Try driving in a European city. (I love this project and can't wait to buy or rent a self-driving car)

Exactly, I live in Rome and you'd really be surprised by the number of bikers who drive on the sidewalk to avoid morning traffic. I don't think Google cars are prepared to respond to people merging from the sidewalk, they're just unpredictable and nothing will ever change that.

I don't see why not. If I were writing a self-driving car I would care that

1. My car stays in lane and obeys the rules of the road

2. It doesn't hit anything

Fulfilling 2) is "easy", you just need to make sure you have sensor coverage within a safe stopping distance.

Besides, a biker is just a faster cyclist, and it's common and often legal for cyclists to merge from the sidewalk, if the sidewalk is marked for that purpose

Re: The latest chapter for the self-driving car: mastering city street driving

#103
post #44
post #18

Earlier quoted context omitted.

Somebody correct me if I'm wrong, but Google cars still can't drive in the rain or in the snow. Not even on a wet street. They have driven all those thousand miles in Mountain View, Calif. in good weather. Generally lidar's don't work well with rain or reflective surfaces.

Indeed — I remember a projet in high-school, explaining how lidar were being used to measuring rain drops direction… The thing is: there apparently now is a technology (at Mercedes or BMW) that uses beamers instead of front lights; a secondary camera detects droplets’ movement, predicts their fall and the beamer doesn’t shine light precisely on them. It helps light in front of you at night without shining mainly the…

You're thinking of the intel system:

http://iq.intel.com/future-headlight-technology-could-make-r...

BMW does have an interesting new headlight system available on the coming i8 which boosts the high beam range using lasers, which is still pretty cool but doesn't avoid rain.

Re: The latest chapter for the self-driving car: mastering city street driving

#104
post #77

Earlier quoted context omitted.

I'm a cyclist as well as a driver and I give a lot of space to cyclists when overtaking them but I don't see that working too well. When cyclists/pedestrians get used to the system they will start to abuse it and rely on the systems to force the vehicles to avoid them/stop. Also what defines too close? If you stray 1mm inside that zone do the brakes come on hard regardless of other traffic? What happens when the cycl…

Autonomous braking exists for those kinds of events: When a person steps out in front of a car, for example. Yet I don't see people deliberately jumping out in front of cars just to mess with them.

Because only a small fraction of cars have them.

Jay-walking can be dangerous. When you know that all cars will stop for you, it becomes a lot safer to just cross the street wherever you want.

http://en.wikipedia.org/wiki/Risk_compensation

Re: The latest chapter for the self-driving car: mastering city street driving

#105

Earlier quoted context omitted.

Harder yet, Southeast Asia. Hundreds of pedestrians, tons of vehicle variety (some entirely makeshift), uncontrolled intersections, very little regard to any regulations.

> very little regard to any regulations. That's an important point, I never expected lanes count and lane direction to be interpreted as suggestions until I saw people going through a roundabout on both sides at the same time.

Yeah I was just biking in Vietnam and Cambodia and it's quite a different system with stuff all over the place. There is a kind of logic to it - you project their trajectory and yours and if there's no impact you keep going, otherwise you modify speed and direction in a minimal way to avoid impact regardless of going the wrong way on the wrong side of the road etc. It takes quite a bit of getting used to as a western driver though from a computational software point of view the above is probably a fairly simple algorithm.

Re: The latest chapter for the self-driving car: mastering city street driving

#106
post #23

As a city cyclist, the Google solution looks way safer than the current status quo...

Even before we get self-driving cars, autonomous braking should be mandated so that cars and trucks are literally incapable of coming too close to a cyclist.

I'll back that as soon as a system to force bicyclists to abide by traffic laws is required.

Re: The latest chapter for the self-driving car: mastering city street driving

#107
post #89
post #52

Earlier quoted context omitted.

I think the real markets are long haul trucking and small delivery van for the last miles. All in all it is probably a significant portions of job.

I don't understand why subways and trains aren't implementing. The universe of possibilities is so incredibly limited in these situations that it seems like a piece of cake, compared to city driving. "Can you see that the track is clear of obstacles? If not, stop!"

A lot of subways built in the latest years are totally of partially automated. See http://en.wikipedia.org/wiki/List_of_driverless_trains

Re: The latest chapter for the self-driving car: mastering city street driving

#108
post #83

Earlier quoted context omitted.

Harder yet, Southeast Asia. Hundreds of pedestrians, tons of vehicle variety (some entirely makeshift), uncontrolled intersections, very little regard to any regulations.

In my mind structured road conditions are a prerequisite for driverless cars. I've been in many situations where conservative driving according to the rules of the road is not possible. In the West this is more limited to dense cities and exceptional situations. In India, though, this is the rule. If you waited for pedestrians to finish crossing or for cars to clear intersections, maintained a safe following distance…

@zimbatm (because there isn't a reply option at this level)

I'm also sure there are screenwriters already working on incorporating such scenes into movies. Likely we'll see it on the big screen before we see it in real life.

Re: The latest chapter for the self-driving car: mastering city street driving

#109
post #7

Earlier quoted context omitted.

The thing is .. what happens if a cyclist falls in front of a car with a human driver? Probably the car drives over him and the cyclist dies. The challenge is to do better than that, which is a rather low bar.

People won't see it like that. If a human driver makes a mistake, it's "human error". If a robot driver makes a mistake it's criminal negligence -- because robots are capable of not making mistakes. In other words, robots are held to a higher standard than humans.

Is it "making a mistake" to take tens of milliseconds to realize that a human has fallen down in front of you?

Re: The latest chapter for the self-driving car: mastering city street driving

#110
post #3

I love how the car understands the cyclist's hand signals. The self-driving car is going to have a gigantic impact on the world, I can't wait to see it commercialised.

I think it will only take a few on the road to teach motorists what legal driving looks like. Hopefully it'll have a traffic calming effect in general.
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