Speed Limit corrections - no luck so far

[CoolBuddy]

In my area in Ohio, maybe half the state highways are correct. It's gotten worse over the two years I've owned my car. I used to be able to drive between my town and my parents' town without needing to either use TACC or defeat the max speed by pressing on the accelerator. There were three separate routes I could take to go between the towns and everything was fine. Now none of these have correct speed limits. There are long stretches of either 35 mph or 50 mph where the speed limit is actually 55 mph. On streets in my town that are 25 mph zones, it thinks they are 35 mph.

I've attempted to submit feedback to Google, I've tried updating Open Street Maps. I've tried submitting bug reports in the car. I've tried submitting through the app. Nothing has worked to correct any of these road segments.

Has anyone had success getting speed limits corrected in their area? If so how? Even if it may just have been a coincidence, I'm willing to give it a try just in case.

 

[GtiMart]

I don't think you have any control over getting these fixed. However, for a while now the cars have been able to read the speed limit signs. The speed limit shown in the car should automatically update as you pass the signs. I know mine does.

 

[CoolBuddy]

I don't think you have any control over getting these fixed. However, for a while now the cars have been able to read the speed limit signs. The speed limit shown in the car should automatically update as you pass the signs. I know mine does.

That works great when there are signs. When I turn East on SR 162 from SR 4, in the middle of the country, for example, there are none and it wants to put me at 35 MPH until I hit Republic. On the other way, there is a single speed sign and if you happen to turn onto 162 after that, you are set to 35.

 

[sroy]

What’s the driving code when there’s no signs in your state? In NJ, if there’s no signs and it’s residential it’s 25, if commercial it’s 35, etc. I think there are 5 cases. Freeway 65, highway 55, schools 10, residential 25 and commercial/industrial 35.

just wondering if the algo uses something like that or defaults to whatever when there is no signs (or what the map app says)?

 

[CoolBuddy]

What’s the driving code when there’s no signs in your state? In NJ, if there’s no signs and it’s residential it’s 25, if commercial it’s 35, etc. I think there are 5 cases. Freeway 65, highway 55, schools 10, residential 25 and commercial/industrial 35.

just wondering if the algo uses something like that or defaults to whatever when there is no signs (or what the map app says)?

If outside of city limits and no posted speed limits, it is 55 MPH. I am not 100% certain on what areas are zoned within city limits, but my street has one side zoned residential and I'm pretty certain the code is similar here for that as well (25).

 

[KenC]

Would be nice to find out how to submit corrections. I've updated the speed limits in OpenStreetMaps in my area, and it hasn't changed anything either.

 

[CoolBuddy]

On the note about state codes, it would be nice if Tesla used Do Jo to scan state's statutes and apply those rules to highways and flag those that conflict with the database for review/update.

 

[sroy]

Yes

 

[Knightshade]

I've tried submitting bug reports in the car.

Just a general FYI- those don't go anywhere.

They remain local on the car, essentially just setting a bookmark in the log files when entered- such that if you open a service ticket for a repair issue with your car the local service center can find the part of the logs from the time the problem happened. They don't get sent "to tesla" and they don't serve as a way to provide more general feedback on anything.


As to speed limits- folks have complained about it for years, I've never seen any solution that actually reliably worked, the nearest being the now it reads signs most of the time when there's signs.

(I only add actually reliably because invariably you get someone who says they updated it in OSM and months later the change showed in their local maps, but there's tons more where it never does, so this is likely mixing up causation with coincidence)

 

[Jiver]

That works great when there are signs. When I turn East on SR 162 from SR 4, in the middle of the country, for example, there are none and it wants to put me at 35 MPH until I hit Republic. On the other way, there is a single speed sign and if you happen to turn onto 162 after that, you are set to 35.

Actually it doesn't work at all if you have 2.5 hardware like I do in my 2018 LR AWD EAP. With 2.5 hardware you are completely reliant on what the map says the speed limit is.

 

[Trevor B]

I don't think you have any control over getting these fixed. However, for a while now the cars have been able to read the speed limit signs. The speed limit shown in the car should automatically update as you pass the signs. I know mine does.

What if there are no signs?

And ... not all Teslas can read the speed limit signs

 

[stopcrazypp]

Probably

I've attempted to submit feedback to Google, I've tried updating Open Street Maps. I've tried submitting bug reports in the car. I've tried submitting through the app. Nothing has worked to correct any of these road segments.

Neither of those are the mapping service Tesla uses from what I can find. Tesla uses Google maps for the visuals, but not for the navigation, which supposedly is based on Mapbox (which has some ties to Open Street Maps, but may not necessarily be the same).

https://www.reddit.com/r/openstreetmap/comments/emh9no/_/fdq6utv

Corrections to Mapbox can be submitted here:
Report a problem with the map | Help
However, just because that is for navigation, does not necessarily mean that is where their speed limit data is gathered from.

I'm guessing for this feedback to reach Tesla, you have to submit it to Tesla via the customer service chat:
Customer Support

 

[Candleflame]

The real issue is that tesla only allows to use AP at the recorded speedlikit while not on a dual carriageway. Which is BS.

 

[Knightshade]

The real issue is that tesla only allows to use AP at the recorded speedlikit while not on a dual carriageway. Which is BS.

AP in current form isn't intended to be used on other types of roads. Repeatedly says that in the owners manual, and that if the driver insists on doing it anyway they'll have a limited speed.

 

[Candleflame]

AP in current form isn't intended to be used on other types of roads. Repeatedly says that in the owners manual, and that if the driver insists on doing it anyway they'll have a limited speed.

This might be true for europe and most of the USA but i.e. in Canada or Australia we have many single lane highways. I know you are thinking countrylane, but they are less fatiguing to drive on with little bends/curves. They have emergency pullover strips (which can be used if some idiot is trying to overtake in a corner) and maybe a 30-50cm division in the middle and frequent 2+1 overtaking lanes. You cant compare this to a tiny european country road where you wouldnt spend much time on before you get onto the motorway.
I have to drive for 1400km on them before I get to the next proper motorway. They also dont have tight bends like you might see on a country lane. But AP refuses to be set at my traveling speed and if you are unlucky and it doesnt see the speed limit sign at a building site you have to manually drive for like an hour before you see the next speed limit sign and it may stay locked to 50kmh!

 

[Knightshade]

Are these 1 lane roads controlled access? (on/off ramps) with no intersections or cross traffic anywhere on the route?

Because those are also domain limitations for APs intended use.

I don't recall seeing anything like that when I lived in Canada (but this was southern Ontario so maybe you're talking more remote places)

 

[sroy]

Are these 1 lane roads controlled access? (on/off ramps) with no intersections or cross traffic anywhere on the route?

Because those are also domain limitations for APs intended use.

I don't recall seeing anything like that when I lived in Canada (but this was southern Ontario so maybe you're talking more remote places)

They’re even more dangerous than US highways and AP is definitely not designed for those. They are cleary NOT freeways. Can’t say for Australia… maybe in saskatchewan?

 

[Candleflame]

Are these 1 lane roads controlled access? (on/off ramps) with no intersections or cross traffic anywhere on the route?

Because those are also domain limitations for APs intended use.

I don't recall seeing anything like that when I lived in Canada (but this was southern Ontario so maybe you're talking more remote places)

some of the roads you may not have any sideroads or intersections for many kilometers (and those may be seldomly used). Visiblity is usually very good because the roads are long and straight. If there are "proper" intersections they have on/offramps but those are much shorter than you would find on a motorway. Attached you a picture of that. Tbh I personally dont see much point in them - the roads are often straight and you can just see if there is a car coming.
Overtaking isnt allowed when intersections come up.

In the Northern Territory those roads are even more extreme - you might not see an intersection for 100kms. They actually used to have their roads derestricted (i.e. no speed limit), but nowadays you can drive 130km/h there. The government derestricted parts of these roads a couple of times for a few years with an exellent safety record (0 fatalities i think) but since labour has been in power theyve gone back to the 130km/h speed limit. Apparently average speed traveled during the derestricted time was 150km/h. Like... you couldnt drive 150km/h on a european countrylane even with no other cars around. It just wouldnt work.
They actually dont necessarily have emergency pullover strips or painted lane divisions but their roads are quite wide, presumably to support the higher speed and also the roadtrains which AFAIK are allowed to travel without escort vehicles even when they are oversized there.

To put this into perspective as well. When I had to drive into the queensland outback - for the 900km journey I broke it up into 3 sections - 200km, 400km and 300km. for the first section it did the whole journey on AP. the second section i had to to touch the steering wheel twice to change streets and for the last section three times and I drove for maybe 5km without AP. When I drive on a motorway I actually never use AP because I drive manually with frequent overtaking and lane changing. So for me the main use of AP is those rural highways.

 

[CoolBuddy]

One of the big issues with the current restrictions on speed - outside of the fact that more than half the segments of streets and roads in my area are wrong - is that it is a safety issue. I'm not talking the streets that it thinks are 35, are actually 25 and when you engage TACC goes to 40 if you aren't paying attention. That is easy to rectify for an attentive driver. I'm talking about the cases like on OH 2, a divided limited access highway (on and off ramps only) where there is a speed limit of 65 and you set it to 70 to go with the flow of traffic. But heading Eastbound towards Cleveland, when SR 57 crosses under (no intersection), it immediately speed adjusts to 50 MPH because for that brief period, it thinks you are on SR57. This results in immediate braking whether you are in TACC, AP, or NOA from 70 to 50! It is a case where you have to know to expect this coming up and apply the foot on the accelerator (defeating automatic braking). It took a few times going that way for me to understand what was going on, but in some cases of "phantom braking" it is actually a case like this.

 

[robertjanusz19]

still waiting for tesla to be able to read variable speed signs (white on black) in Sydney tunnels