xkcd #2841: Sign Combo
xkcd #2841: Sign Combo
![the background blur](https://imgs.xkcd.com/comics/sign_combo_2x.png?thumbnail=256&format=webp)
![](https://imgs.xkcd.com/comics/sign_combo_2x.png?thumbnail=1024&format=webp)
How to segfault an autonomous vehicle.
87 0 ReplySomeone will at some point try this for sure
22 0 ReplyActually I'd think handling unclear situations like this would be one of the major things that makes autonomous driving systems so complicated and challenging to develop.
13 0 Reply
I knew printing your own signs would lead to interesting exploits, but this is just next level.
9 0 Reply
76 0 ReplyWelcome to Germany
23 0 ReplyI'd just drive off the road to the right. Where I'm going, I don't need rules. I may need new tires, though...
19 0 ReplyAnd suspension, shocks, axel, exhaust, undercarriage...
9 0 Reply
You could reverse down the road, or would there be a moment between forwards and backwards when you're stopped?
18 0 ReplyIt's not a u-turn if you skid into a wicked 540
26 0 ReplyKnight Rider vibes.
6 0 Reply
You have to cross over 0 at some point
7 0 ReplyStopping isn't the same as driving at 0 speed.
A car is stopped if and only if its acceleration is also 0.
9 0 Reply
14 0 Replysigns may only apply to the road after them, so you could validly stop just before it.
My thoughts exactly; problem solved. Just do what the first sign says before the others apply.
2 0 Reply
Somewhat more sophisticated version of a one-way cul-de-sac.
13 0 ReplyWhat concerns me the most is the no uturn followed by road that says you can pass and in theory u turn
11 0 ReplyTime to go off-roading.
8 0 Replyalt text is supposed to describe the image for people who are visually impaired, that's just a caption
edit: didn't know what I was talking about, xkcd has a specific thing called alt text that's different from what I was describing, my bad lol
4 0 ReplyAlt text on XKCD posts is the label that displays when you hover over the post on their website, it's not something that the user has added.
11 0 Replyoh dang my bad didn't realize it had an xkcd specific meaning, thx for correcting me!
2 0 Reply
Well clearly they want you to drive sideways
3 0 ReplyIs this an auditor trap?
3 0 Reply