Does 120 km/h Limit Exist?

beeeerock said:

If I could drop this into a forum section that all of Europe would read, I would... but I'll try this one!

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A slightly unfortunate choice, since our limits are in miles not km - a 120 limit would hardly need signing here!

Do you have 120 km/h speed limits anywhere over your way? And if so, does the Tesla camera read and interpret them correctly?

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120 is certainly found elsewhere in Europe. Can't personally say whether the AP reads them correctly.

I think your signs might look different to ours, so maybe not a completely fair question, but wondering anyway...!

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Yes, in the UK (and much of Europe), mandatory speed limit signs are numbers enclosed in a red circle (including, recently, electronic message board signs that if able to display a red circle around their white numbers can introduce a mandatory limit).

Ordinary (square) signs with black numbers and no red circle in the UK are 'advisory' (non-enforceable) limits - and similarly older electronic signs that don't show the red circle. So if a car here saw one of your style of speed limit sign it is entitled to ignore it.

In short, not sure European experience is going to answer your question...

arg said:

including, recently, electronic message board signs that if able to display a red circle around their white numbers can introduce a mandatory limit

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Can be above the lane, rather than adjacent. Dunno if a Tesla camera can "see" that, rather than a roadside sign?

In Finland 120km/h speed limit is common and Tesla camera reads it correctly. For winter they always reduce it to 100km/h.

beeeerock said:

D'oh! I honestly thought you'd converted to metric... grams of sliced ham at the deli, height in cm's etc... Didn't currency get changed to a more logical system as well? I apologize for assuming - should have Googled this first! :redface:.

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Yes, we fixed the currency in 1971, and most other things went metric gradually over a period of time (filling stations continued to advertise the price of fuel in both gallons and litres long after the official pricing had switched to litres). There were reasonably concrete plans made to convert speed limits in the 70's, but that would have had to be a 'big bang' change, and in the end it was decided that the cost of converting signs etc was just too much.

Perhaps the NA software doesn't believe 120 because it interprets it in mph; does it read 100 correctly?

Mine reads pretty much all signs in continental Europe, including the matrix signs with varying speed indications.

beeeerock said:

I wondered that myself. Canada is all metric, and the car does recognize all the other signs as being km/h (that I've noted). 100 km/h is a common enough speed up here and seems to be reliably recognized.

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I don't have the feature, but am curious to know what would happen if you had the car's settings in Miles (as I do) in Canada. Would it think that 100 km/h is 100 MPH? Similarly, what happens when you cross the border between Canada and the US. Does the car "know" where it is by GPS or does it base this on the user's km vs miles settings?

Mine interprets one 65MPH sign as 85MPH, which is higher than 120kph, so I would say yes. At least in the US.

CHG-ON said:

Mine interprets one 65MPH sign as 85MPH, which is higher than 120kph, so I would say yes. At least in the US.

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That sounds like it's just mis-reading the sign. I meant what if I have my car set for miles, but the road signs are in km/h. Would the car see 100 (km/h) and think it was 100 MPH because the car's settings was in miles?

mknox said:

I don't have the feature, but am curious to know what would happen if you had the car's settings in Miles (as I do) in Canada. Would it think that 100 km/h is 100 MPH? Similarly, what happens when you cross the border between Canada and the US. Does the car "know" where it is by GPS or does it base this on the user's km vs miles settings?

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It is location based. When I entered the UK before switching to miles, it would show a 30 sign as 48. Unfortunately you can't switch only the speedometer. I would still like the navigation to show distances in km and the parking sensors in cm while driving in the UK.

bylund said:

It is location based. When I entered the UK before switching to miles, it would show a 30 sign as 48. Unfortunately you can't switch only the speedometer. I would still like the navigation to show distances in km and the parking sensors in cm while driving in the UK.

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At least MS shows temperatures in Celsius in UK with distances in miles, unlike some cars I've seen which assume that you want Fahrenheit if you use miles.

I too would like more granular control over displayed units. Miles is probably best for driving in UK because that's what signposts and speed limits use, but I'd prefer the proximity sensors to be metric. Come to think of it, it wouldn't be that hard to show both.