Has anyone else had their TSR system display a rouge speed limit? Mine has twice displayed 100 mph sign. Once on a bit of the A5 on a 70 limit and tonight in a 30. Wondered if it was more widespread or unique to my car?

Mine seems to think that my street (a 30 mph cut de sac) is 60 mph.

I've not had any serious issues in all fairness. It's misinterpreted a few speed limits on slip roads and such like but that's to be expected. 

 

The only anomaly so far is a 'no overtaking' sign appearing when I drive over the Hammersmith flyover - which is a dual carriageway  :|

 

The TSR also sees the variable speed limits on the overhead motorway gantries which is pretty good. 

Mine actually told me to clean my windscreen yesterday and then continued to display the correct limit. Cheeky beggar!

Mine actually told me to clean my windscreen yesterday and then continued to display the correct limit. Cheeky beggar!

Maybe we should rename it SWMBO 

Ours occasionally gets the limits wrong.

Sometimes, it appears to show two speed limit signs (one partly hidden behind the other) - anyone else get that ?

Sometimes, it appears to show two speed limit signs (one partly hidden behind the other) - anyone else get that ?

 

Are you sure it's showing two speed limits and not a speed limit with a no overtaking? The only time I've had it show two speed limits is when there's a conditional limit, usually "when wet" or, in the case of the Netherlands, when a higher nighttime limit applied.

Switching the MFD (maxidot) to Sign Recognition will show the signs clearly, side by side, including any conditional limits.

I've had the "100" sign displayed on mine a couple of times. Was at Center Parcs last weekend and they have lots of 10mph limit signs on their roads. The TSR identified them OK but it wasn't happy about it. Some sort of warning appeared on the central display each time it "saw" one.

I've had 2 different speed limit signs on my maxidot screen, one of which was hidden. Both speeds are however shown on the Columbus screen.

 

I wonder if it's due to a conflict between what the sat nav database thinks the speed should be, compared to what the TSR camera is seeing.

Variable motorway speed limits would be a good example of this. I'll keep an eye out for it and see if there's some sort of correlation.

Sounds like a "glitch" I haven't encountered myself.

It shouldn't be a TSR/SatNav conflict otherwise motorway roadworks would surely show 50 (TSR) and 70 (SatNav), which it doesn't.

 

 

Mine seems to think that my street (a 30 mph cut de sac) is 60 mph.

 

I know the manual says it will show a maximum speed (for the UK a 60 or 70 mph sign) if it hasn't detect any signs for a time and cannot ascertain the limit from the SatNav map (many mapped roads, mostly minor roads, have no speed limit data assigned to them).

For TSR to work under all circumstances in the UK it would need to be able to measure the distance between street lamps if no other sign detected (under or equal 200 yards = 30 mph, over 200 yards = derestricted) or in Germany detect the yellow town sign as meaning 30 mph (50 kph) and the same sign with a diagonal red stripe as end of speed limit. With 50+ countries, each with their own different method of defining urban speed limits, that would be a TSR programmer's nightmare.