Does FSD read speed limit signs anymore?

[sharpgator]

Maybe because I am talking about a more rural setting. It has not been a problem in most settings, but it used to be fairly instantaneous….. would pass a sign, it would “see” the new speed and change it. I am wondering if it is taking its cue from something other than visual information.

yes. This is exactly what I mean. It was reading signs and mistaking route numbers (eg. route 15) for 15mph. That was annoying, but that was a very early version. Then it learned to differentiate route # from speed, likely by color. But it was “reading” the actual sign and continued to do so until recently. Now it seems to be taking information from some navigation data set. From where? What’s wrong with reading? Unless as someone pointed out, it’s a place with no signs. In any case, getting back some control for those edge case scenarios would be very helpful!

Exact same thing in my area. Sometimes it's right on cue when the speed limit drops and the truck decelerates at the sign. Other times, it clearly "sees" the sign and ignores it.

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[cybercricket]

For us to provide meaningful feedback to Tesla on this issue, they need to provide more detail on the current chosen speed limit: was it from map data? Or did it read a sign? Was there a conflict between the two??

Right now, we can't even agree if/when it is reading the signage. In my experience, non-standard speed signs (like construction zones) are ignored, so I assume it is using the map data.

From my observations it uses the map data until it sees a sign to override it. This is separate from it stopping to process signs. Now the interesting thing is map data is supposedly from Google, and Google allows people to submit corrections. I've tried doing that for one of the stretches were FSD incorrectly determines the speed limit, but nothing changed after months of waiting. Not sure if Google refused my correction, or perhaps something else is going on.

 

[FHWizard]

HWY 42 in Oregon is a twisty highway with 55MPH speed limit. I used to be able to set it to about 62 to flow with traffic and it would slow appropriately in the curves then pick back up - great. Now it shows up as 45MPH even though there are plenty of 55MPH signs and I have to toggle between Mad Max (where it wants to go 72) and Hurry (down to 53). As an experiment on our last trip I pulled over, parked (didn't want to do a reset while driving) and continued. It initially still showed 45 but changed to the correct 55mph in about a half mile and read the correct speed limits from there on.

While, if that didn't work, I was tempted to get out and do a rain dance while waving a dead chicken over my head, I knew that would just reinforce other drivers opinion of CT owners.

 

[Duran]

On rural Texas, Oklahoma, and New Mexico roads, it rarely reads the speed limit signs. I reported numerous speed errors out of frustration - don't have that satisfaction any more so have to bounce the scroll wheel back and forth to yoyo the speed where I want it. How can it be considered self-driving if it can't read signs?

Here’s what I’ve noticed and wondering could this be the reason. Driving back roads in Oklahoma going from 45-55-65mph then going thru small town speed limit goes all the way down to 35mph, then back up again. My CB rarely sees the 65 or the 35. One day I started paying close attention to the actual signs “what is different here than the highway?” On the highway CB does so much better. The highway signs are huge compared to back road signs. Could this be the reason? Could the size of the signs be confusing and/or are missed because of their size? <— I swear I can already hear the jokes. I’m just taking a stab at this so if I’m completely off base here, be kind. lol.

 

[cybercricket]

Here’s what I’ve noticed and wondering could this be the reason. Driving back roads in Oklahoma going from 45-55-65mph then going thru small town speed limit goes all the way down to 35mph, then back up again. My CB rarely sees the 65 or the 35. One day I started paying close attention to the actual signs “what is different here than the highway?” On the highway CB does so much better. The highway signs are huge compared to back road signs. Could this be the reason? Could the size of the signs be confusing and/or are missed because of their size? <— I swear I can already hear the jokes. I’m just taking a stab at this so if I’m completely off base here, be kind. lol.

Are the signs that it ignores visualized or completely invisible ? I have seen another behavior that a sign in a particular location is being completely invisible to FSD under certain lighting conditions, but likewise it may be unable to see signs with certain features in the background if it hasn't been previously trained on that.

 

[scjmc]

Definately not reading signs at least in my area. Ignores posted signs in construction areas, ignores school zones, ignores day/night time speed limit signs. It used to react to temporary construction zone speed limit signs. It also used to read the night time speed limit signs and slow down during the day. Day/Night speed limit signs are probably rare, but construction/school zones...... Also like others have complained the truck drives too slow on the highway. Safe conditions, clear views, clean cameras, I constantly have to give it throttle input to go a reasonable speed. Thats in hurry or mad max.

 

[pae1andonly]

Mine doesn’t; cruising down the highway 75 limit, get to a construction zone and they put up their makeshift 55 signs, truck still wanna do 80.

On a recent road trip found construction zone reduced speed handling dicey at best. And horrible with the electronic variable speed zones on mountain roads. Left many verbal feedbacks.

 

[pae1andonly]

From my observations it uses the map data until it sees a sign to override it. This is separate from it stopping to process signs. Now the interesting thing is map data is supposedly from Google, and Google allows people to submit corrections. I've tried doing that for one of the stretches were FSD incorrectly determines the speed limit, but nothing changed after months of waiting. Not sure if Google refused my correction, or perhaps something else is going on.

On a recent road trip, I began to use Google nav in parrelel to provide another opinion of current speed limit. Lots of disagreement. No clear winner for most accurate.

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