henry wrote: ↑09 Nov 2018, 12:36
I think you’re also speculating that the drivers have screens full of images produced by the vehicle sensors. Maybe they do maybe they don’t.
Perhaps you should watch some of the videos on the Waymo youtube channel. They give a pretty good insight on what the cars are able to illustrate on their screens. At the very least, a 3d representation of the car and surrounding road, visualising exactly what the car 'sees' and 'identifies'. Considering this technology is 'work in progress', it's reasonable to assume that the test-drivers are not only there for the ride and to take over when they must, but are also tasked with monitoring/observing the decision making of the car and on keeping a tight protocol in how well the car's perceived 'reality' stacks up to the real one.
So yes, I am going to assume the test-driver has a lot of information available to him.
AJI wrote: ↑09 Nov 2018, 11:38
Phil wrote: ↑09 Nov 2018, 11:31
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Why did he feel he needed to intervene? The fact he did, speaks volumes.
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Because a singular human is much smarter than anything or anyone in the universe? Help me out here, I'm struggling
No, because these test-drivers have a much better understanding of what these cars are capable of, where their (current) limits are and how they react/drive in the real world. They'd better. After all, they are 'experts' and have done how many million miles of mileage across how many years? If anyone knows how well these cars react to the unexpected, they do.
If you think there is any kind of "intelligence" driving these cars, you are sorely mistaken. It's just a piece of software coupled to some sensors doing what it was programmed to do. Encounter situation x, do y etc. Of course, having done millions of mileage on the road, the complexity of the "data" is growing to the point many daily situations are handled. But at the end of the day, it's still a piece of software and the software can only be as good as the sensors that feed it its information. And the software is only as good as its (programmed) ability to accurately read and interpret what is happening around it. Mistaking a cyclist for a motorbike could be dangerous. As would be mistaking a child for an adult. I am still yet to see that this technology is able to distinguish objects into more than a few categories like human, cyclist, motorbike, small-vehicle, large-vehicle etc (not that this isn't already very impressive -- the nerd in me speaking).
So yes, these test-drivers would have a very intimate knowledge and understanding of what these cars are actually capable of in reality. The fact that these 'interventions' take place quite frequently and in the above incident, the test-driver 'took control' does speak volumes, regardless if his actions made the incident worse or not.
henry wrote: ↑09 Nov 2018, 12:36
I’m basing my judgement on what Waymo reported.
henry wrote: ↑09 Nov 2018, 12:36
The Waymo cars have expensive sensor arrays and expensive processing. Waymo spend millions on mapping the road infrastructure and building the object data sets to train and test the software. Their cars operate on roads they know in weather conditions they can cope with. It’s a very expensive business. Google have deep pockets and are doing this because they want to make Waymo rides as ubiquitous as Google Searches. Others have likewise large resources, Baidu in China for instance. Others are less well off and are taking shortcuts, we hear quite a lot about them. Others are driven by ambition, Elon Musk’s desire to describe what Tesla are doing as “fully autonomous” is a risk to the whole industry.
You are putting a lot of faith into what Waymo (& Co.) is reporting to be absolutely transparent and 100.00% correct, considering the 'expensive processing', 'the spending of millions to mapping road infrastructure and object data', the countless of man-hours (I added this one). Yes, it really is undoubtedly an expensive business. One might even call it a multi billion venture. Now, I'm not going to go as far to suggest that the data we are receiving is manipulated. I fully trust the DMV to have very strict guidelines and laws as to what gets (publicly) monitored and logged - at least the part that can be monitored and does trickle down as far as the DMV that then ends up in the public domain. I do however question how far that PR machine is willing to go to make it seem that their cars are better than they are in reality.
In other words, if my self-build AV car could successfully drive up and down my residential area street 49893018 times, I could easily put out a headline claiming more than 39313 miles of accident free driving. It would be a correct statement. But it would also be a bit misleading, considering those 39313 miles are effectively on an empty road. Now again, I'm not saying that Waymo aren't driving on demanding roads. They are. But how impressive those faultless drives match up to reality very much depends on how many of those millions of miles were covered in demanding and unpredictable circumstances. We don't know that, you don't know that, there's no way to know that. The question is how much are you willing to trust into the PR machine?
It's a very very expensive venture these companies are setting out to do and quite frankly, bad publicity would be the last thing these companies can afford. It would be a major set-back and public perception might just be a little different. At the same time, these companies are competing against each other to come out as the first to have the most mature technology. Better to focus on what these cars do well than what they don't. It therefore doesn't hurt to be critical of what the headlines suggest.