Speed Limit Indicator
Is it based on a database, or is it based on reading the posted signs by camera? I'm sure the salesperson said it was by camera, but we all know how reliable salesperson speak is.
At first, I was sure it was from a database. Then I noticed it was accurate while I was driving in a two year old construction zone on the local Interstate. (55 vs 65). If it camera based, I suspect it won't always pick up every sign. Not a big deal, and I am currently out of town, so I dont have the digital manual available to look it up. Thanks |
I'm 90% sure it's based off of GPS fed information.
There are times where I get onto a road and I haven't passed any speed limit signs yet, but the speed limit is already updated. |
Originally Posted by JB in AZ
(Post 16436038)
Not a big deal, and I am currently out of town, so I dont have the digital manual available to look it up. Thanks
here you go :thumbsup: |
Probably based on database info. It seems to match Waze speed limit info.
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I find it does NOT match Waze. Waze always seems to be correct. The Acura often is not correct. The Acura also often show no speed limit when Waze does show one.
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So page 128 of the 2019 manual says it is "based on information complied from the navigation system"
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Originally Posted by RDXguy
(Post 16436060)
I find it does NOT match Waze. Waze always seems to be correct. The Acura often is not correct. The Acura also often show no speed limit when Waze does show one.
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The Honda Accord reads the signs, the Acura reads its database.
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Originally Posted by Madd Dog
(Post 16436284)
The Honda Accord reads the signs, the Acura reads its database.
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If the technology to “read signs” really works well, then that sounds far better. It should always be accurate. As compared with an outdated data base.
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Originally Posted by RDXguy
(Post 16436395)
If the technology to “read signs” really works well, then that sounds far better. It should always be accurate. As compared with an outdated data base.
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When I test drove the Accord, it got a sign wrong. It was a year ago, and I don’t recall the details, but I was WTF at the in-car speed limit, and I realized the car read the wrong sign.
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In my 2022 RDX, without the "navi", the manual states that signs are read. Having said that I pass the sign in the image, and within a very short distance, probably 20 feet, my dash display of the speed limit is 100 mph. Shortly down the road is a 55mph sign and on passing it the display states 55mph. But after another 1/4 mile, and an intersection with the route marker sign, it reverts back to 100mph. In my travels of about 5 miles on that highway, I pass about a dozen speed limit signs and about five or six of the route markers. The vehicle responds to every sign within a short distance.
https://cimg3.ibsrv.net/gimg/acurazi...1e71654b89.jpg |
The 2019-2021 reads from the navigation map data.
The 2022-2024 gives you the option of navigation map or camera sign recognition. Map can be outdated, and camera can be misled by highway number signs, so you can choose whichever works better. |
whatever way it figures it out, it has some bugs. I have a '24 a-spec advance, and when I pass my kid's elementary school until i get to the next stoplight - a 25mph road - it has shown 70mph and 85 mph as the limit. No earthly idea where it gets that from. It's not a route number where it would read that sign as the speed limit. and it's nowhere near a road with 70mph limit for the gps to have a misread of which road i'm on.
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