Guess the speed limit challenge

[bcroadguy]

50 mph

[doorknob60]

50 mph

Yep! It's ID-6 between the Washington border and US-95. https://www.google.com/maps/@46.930402,-117.0379098,3a,64.2y,90.7h,77.78t/data=!3m6!1e1!3m4!1sja87EKHKZ-lYKAR08A2yNg!2e0!7i13312!8i6656

This one's interesting because 50 isn't all that common on state highways in Idaho (though it is very common on county roads). The only major example of 50 on a rural state highway I can think of is US-12 towards the Montana border. A majority of the time in the state you're more likely to see 55 or 45. Even across the border (WA-272) it's 55, and having a highway be straight up higher speed limit on the WA side than the ID side for no obvious reason is pretty odd, as speed limits are generally higher in Idaho.

[jakeroot]

Even across the border (WA-272) it's 55, and having a highway be straight up higher speed limit on the WA side than the ID side for no obvious reason is pretty odd, as speed limits are generally higher in Idaho.

That was my first thought as well. Almost universally, Idaho has either (a) the same limit, or (b) a higher limit. To have a lower limit for no clear reason seems really bizarre.

I wonder if it's like WA-410 in Sumner, posted at 55 instead of the Seattle-norm of 60 for freeways. Best I can tell, these roads are basically just forgotten when everything else was increased.

[bcroadguy]

in km/h

[Bruce]

I'm going to guess 80 kmh, based on what I've seen posted on median-divided roads in the Lower Mainland.

[bcroadguy]

Nope

[jakeroot]

I know the road so I'm not going to guess .

[andrepoiy]

60 km/h

[Roadgeekteen]

70 km/h

[riiga]

50 km/h

[doorknob60]

I have a sneaking suspicion it's 60, but that was guessed so I'll guess 90.

[Ketchup99]

I guess I'll take 100.

[bcroadguy]

60 km/h

Correct, unfortunately.

[jakeroot]

If I recall correctly, that road was only built in the late 2000s when the Golden Ears Bridge was opened, right? Or at the very least, was an upgrade of the existing road. Either way, 80 km/h would be more appropriate.

[andrepoiy]

This is in km/h.

It is divisible by 5.

[Ketchup99]

Hmm, let's go with 80.

[jakeroot]

I'll go with 60 km/h.

[doorknob60]

That was a bit overly specific saying "It is divisible by 5", so I'm going to go a little odd and say 55 km/h. Can't say I've seen any x5 km/h speed limits anywhere I've been, but I'm sure they probably exist somewhere.

[andrepoiy]

That was a bit overly specific saying "It is divisible by 5", so I'm going to go a little odd and say 55 km/h. Can't say I've seen any x5 km/h speed limits anywhere I've been, but I'm sure they probably exist somewhere.

Good job picking up on the hint hahaha. I put it in because I foresaw that nobody was going to guess such a number. It is indeed 55 km/h, which I was surprised when I first came, given that the OTM (Ontario's MUTCD) specifically says that speed limits must be in multiples of 10. But then again, OTM doesn't appear to apply as strictly on non-MTO roads.

This is Long Sault Parkway, a scenic parkway west of Cornwall, ON, maintained by the St. Lawrence Park Commission.

Proof:



Link:

https://goo.gl/maps/1FdtmmnAaL7sg6xz5

More info:

https://en.wikipedia.org/wiki/Long_Sault_Parkway

[jakeroot]

I was writing out a "concerned" reply when you posted the picture. That's very interesting.

Are you sure Ontario permits limits not divisible by 10? Even on non-MTO roads? I would think it would be a statutory requirement.

Here in WA, speed limits are legally required to be in increments of 5 mph. Ergo, all limits not divisible by 5 are not real limits and you should instead go whatever default limit might otherwise apply.

[Roadgeekteen]

Good on doorknob60 for picking that one up, or else we may have been here for a while.

[andrepoiy]

I was writing out a "concerned" reply when you posted the picture. That's very interesting.

Are you sure Ontario permits limits not divisible by 10? Even on non-MTO roads? I would think it would be a statutory requirement.

Here in WA, speed limits are legally required to be in increments of 5 mph. Ergo, all limits not divisible by 5 are not real limits and you should instead go whatever default limit might otherwise apply.

Here's a link to a 2000 edition of the OTM, relating to regulatory signs.
https://inps.net/graphics/sites/default/files/pdf/MTO-Book-5.pdf
On Page 35, you'll find this:

"All maximum speed signs established by Ontario Regulation or municipal by-law must be shown in units of km/h and in multiples of 10 km/h, e.g., 50 km/h, 60 km/h, not 55 km/h. "

However, OTM isn't always followed on non-provincial roads from my experience, especially when it comes to guidelines for guide signs.

I looked at provincial legislation, the Highway Traffic Act and I found no mention of increments of speed limits.

[doorknob60]

Interesting, I figured I was on to something with the x5, but the 55 specifically was definitely a lucky guess. I went on the lower side because I thought it looked like a park, guess that worked.

Here's one, in MPH.

[Roadgeekteen]

45

[doorknob60]

Not 45