How Should FSD behave? Godfather of Self-Driving Cars (Sebastian Thrun) on “Polite” Self-Driving.

[hemiarch]

Traditionally I sport the Windows XP shutdown

Auf Wiedersehen good night

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[Crissa]

I am not convinced that slowing down to 65 mph behind the semi and waiting for 'who knows how long' and then suddenly accelerating to the speed of the surrounding traffic is necessarily more efficient. It is certainly frustrating.

Behind the semi, you'll be in dirty air and drafting and going slower, using less energy than sitting in the passing lane. You'll also have more control over the space in front of you, so you can remain safer and do less speed adjustmenting.

I agree it is more frustrating, though.

-Crissa

 

[hemiarch]

Behind the semi, you'll be in dirty air and drafting and going slower, using less energy than sitting in the passing lane. You'll also have more control over the space in front of you, so you can remain safer and do less speed adjustmenting.

I agree it is more frustrating, though.

-Crissa

Don’t you have to be stupid close to the semi for the drafting to be significant?

 

[Crissa]

Don’t you have to be stupid close to the semi for the drafting to be significant?

It's all relative and really depends upon the weather conditions, the size of your vehicle, speed, how long you're there... It tapers off pretty quick with follow distance, but at highway speeds and over several miles even a small difference does add up.

-Crissa

 

[Jhodgesatmb]

Behind the semi, you'll be in dirty air and drafting and going slower, using less energy than sitting in the passing lane. You'll also have more control over the space in front of you, so you can remain safer and do less speed adjustmenting.

I agree it is more frustrating, though.

-Crissa

How close do you really need to be to get drafting efficiency? I have never been comfortable getting right behind a semi on the highway. In fact, if there is even a cargo van blocking my view ahead I usually pass it. This said, I defer to your comment about efficiency.

 

[Crissa]

How close do you really need to be to get drafting efficiency? I have never been comfortable getting right behind a semi on the highway. In fact, if there is even a cargo van blocking my view ahead I usually pass it. This said, I defer to your comment about efficiency.

Depends on temperature, wind, speed. The closer you war, the more you save per mile, the further, the less

I don't know why you'd focus on one part of the statement. It's just easier to pace semis because their speed changes are very predictable; they want to have the most stable speed they can. And they can't slow down very quickly!

You're using less energy to pace behind at Semi at 60 than you would be sitting in the fast lane behind a smaller vehicle going 61; even without counting the drafting. And you get to choose your following distance, because no one is going to cut in front of you to tuck behind a semi... Well, not usually.

-Crissa

 

[Jhodgesatmb]

Depends on temperature, wind, speed. The closer you war, the more you save per mile, the further, the less

I don't know why you'd focus on one part of the statement. It's just easier to pace semis because their speed changes are very predictable; they want to have the most stable speed they can. And they can't slow down very quickly!

You're using less energy to pace behind at Semi at 60 than you would be sitting in the fast lane behind a smaller vehicle going 61; even without counting the drafting. And you get to choose your following distance, because no one is going to cut in front of you to tuck behind a semi... Well, not usually.

-Crissa

My original comment wasn't about drafting but about driving up behind a semi and then cutting back into the line. Just like people that cut in any line - because they can not because they should.

 

[Fugue]

I think traffic works in a certain way and you have to adjust to the way traffic works. When you go to Manhattan, you have to adjust even more. Obviously, if you go to Bangalore, you have to adjust because of different traffic.

I'm interested to see how this changes when autonomous vehicles are the majority.

 

[Crissa]

My original comment wasn't about drafting but about driving up behind a semi and then cutting back into the line. Just like people that cut in any line - because they can not because they should.

There's no reason to wait to pass, in the fast lane, tho.

-Crissa

 

[Darmie]

You should instead roll up on the right, sit there and wait your turn, using less fuel while waiting for the others to pass. Once you've passed, if there's room on the right, you should return to the right lane.


Actually no, if everyone drove that way then traffic would move more optimally and zipper because the right lane would have cars in it. So it would never do that.

I had this instance where there was a merge on the highway on I-5, and instead of using both lanes, all the cars piled into the left lane, leaving the right lane empty for more than a mile!

That doesn't speed up traffic, it makes it slower. So many times in my 700 mile trip the right lane was completely empty when cars were going different speeds.

Go towards the end, a few hundreds meters out, pace a space in the other lane, at the end: zipper in. When you get past the obstacle and a more right lane opens up? Fill it.

Plodding around - especially in the passing lane - only makes things slower. Same for yielding when it's not your turn.

-Crissa

PS, I kinda like Oregon's 'Keep Right Except When Passing' and they call the right lane the 'Slow Lane'. All three coastal states have laws against not yielding to faster traffic behind you. Those laws don't care if you're going the speed limit or not.

Where is that flying roadster when you need it.

 

[Fugue]

Where is that flying roadster when you need it.

No flying Roadster yet, but we did get some underground Cybertrucks in Vegas.

 

[hemiarch]

No flying Roadster yet, but we did get some underground Cybertrucks in Vegas.

No flying roadster? Say what?!

 

[Fugue]

No flying roadster? Say what?!

Touche. I forgot about "Space Oddity."

 

[hemiarch]

Touche. I forgot about "Space Oddity."

Take your protein pills and put your helmet on

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