Ontario, Canada, has an interesting practice of posting the first advance warning sign for the next interchange at the gore point of the previous interchange.
Here's an example (https://www.google.com/maps/@43.1891386,-79.4827481,3a,38.5y,95.38h,91.17t/data=!3m6!1e1!3m4!1sj_O-sMqWomHmRkw_9co26A!2e0!7i13312!8i6656!5m1!1e1). This means that the amount of advance notice you get for the interchange depends on how much distance there is between the exits. It also leads to some cases of excessive advance notice, like the one linked to for 7 km, which translates to 4.34 miles.
Are there any states in the US that use this same practice in a widespread way?
Additionally, what is the longest distance on an advance warning sign in the US? This does not include interchange sequence signs - we already have a thread for those. This is just for signs that refer to a single upcoming interchange. Here's 2 miles to I-271 (https://www.google.com/maps/@41.62752,-81.3994832,3a,75y,226.77h,92.4t/data=!3m6!1e1!3m4!1svCUKzRnaGDbzm2SkVpKnHg!2e0!7i16384!8i8192!5m1!1e1) east of Cleveland, OH.
Some states use 2 miles regularly. Others, like NY, are more sparse. What is the standard for your state? Does it differ for urban vs. rural areas?
(Also, is there a better, more concise name for these than 'Advance Warning for Interchange Signs'? That seems clumsy - if there's a better term I'll update the thread title.)
25 miles in Illinois – I believe Brandon will be able to show you the sign.
EDIT: deathtopumpkins beat him to it.
I-87 has a 5 mile advance (http://nysroads.com/photos.php?route=i87&state=NY&file=100_5911.JPG) sign, with a 15 mile advance (http://nysroads.com/photos.php?route=i87&state=NY&file=102_0884.JPG) for NJ 17 south.
Used to be a 48 mile one for I-380 on WB I-80 in Iowa. I think there's still a 20+ mile one also on WB I-80 in Iowa for I-380.
Exactly what the OP describes is standard ISTHA practice: https://goo.gl/maps/Snwkmhzu79LLo73K6
Not sure if this would count as an official interchange sign, but I-68 in 58 miles (https://www.google.com/maps/@39.3987602,-77.3319891,3a,49y,329.87h,84.85t/data=!3m6!1e1!3m4!1sHrZYu-B29cogbQMjd0KqEQ!2e0!7i13312!8i6656!5m1!1e1) outside Frederick, MD along I-70 West. I believe there's a similar sign on nearby I-270 North approaching the I-70 West junction.
12 miles to I-64 (https://www.google.com/maps/@37.6527147,-77.4316675,3a,48.5y,100.57h,87.09t/data=!3m6!1e1!3m4!1sEkJ6bCXl0Xvx4eWzdMmuhQ!2e0!7i16384!8i8192!5m1!1e1) outside Richmond, VA along I-295 South.
Quote from: vdeane on June 15, 2020, 09:58:15 PM
15 mile advance (http://nysroads.com/photos.php?route=i87&state=NY&file=102_0884.JPG) for NJ 17 south.
I'm not sure that's necessarily an advance warning sign. I wouldn't be surprised if it exists to prevent confusion between 17 North (NY) and South (NJ). In other words, if you're headed south/to New Jersey, don't get off here.
Quote from: deathtopumpkins on June 16, 2020, 08:20:49 AM
Exactly what the OP describes is standard ISTHA practice: https://goo.gl/maps/Snwkmhzu79LLo73K6
25 miles is a long ways between exits. Are there any others that long, or even close to it (15+ miles)?
Quote from: webny99 on June 16, 2020, 08:34:38 AM
I'm not sure that's necessarily an advance warning sign. I wouldn't be surprised if it exists to prevent confusion between 17 North (NY) and South (NJ). In other words, if you're headed south/to New Jersey, don't get off here.
Not an interchange sign, but another situation exists in Rocky Mount, VA with the US-220 / VA-40 interchange. A trailblazer is posted that notifies drivers bound to Interstate 40 (in North Carolina, it never enters Virginia) to stay on US-220 for another 76 miles. This is likely posted to avoid confusion with Virginia Route 40.
https://www.google.com/maps/@37.01127,-79.874312,3a,46.7y,155.61h,85.4t/data=!3m6!1e1!3m4!1s3VX2BzVXPK83EUsKt08UeQ!2e0!7i16384!8i8192!5m1!1e1
I'd be curious if there were any other situations of an interstate trailblazer posted in a state that it never enters.
Quote from: sprjus4 on June 16, 2020, 08:39:22 AM
....
I'd be curious if there were any other situations of an interstate trailblazer posted in a state that it never enters.
Sure. There are several I-295 trailblazers on surface streets in Virginia for the route of that number across the river in Maryland and DC.
Here's one on Mill Road in Alexandria, for example; I passed this one on Sunday on my way home from the bottle recycling place on Eisenhower Avenue: https://goo.gl/maps/dPCmzvjHz8P8Hjcb6 (Bonus: Go back to the intersection just before where the camera is for a very ugly I-95 shield.)
Here's another on Eisenhower a short distance east of there: https://goo.gl/maps/1EKXNeN7UX4R7bTW8 (there's another a little further along in the background)
Go around the corner onto Mill Road and there's another pointing the way back: https://goo.gl/maps/7kY1zLswyqiqW2Ly7
Quote from: sprjus4 on June 16, 2020, 08:25:16 AM
Not sure if this would count as an official interchange sign, but I-68 in 58 miles (https://www.google.com/maps/@39.3987602,-77.3319891,3a,49y,329.87h,84.85t/data=!3m6!1e1!3m4!1sHrZYu-B29cogbQMjd0KqEQ!2e0!7i13312!8i6656!5m1!1e1) outside Frederick, MD along I-70 West. I believe there's a similar sign on nearby I-270 North approaching the I-70 West junction.
Indeed (https://www.google.com/maps/@39.3353073,-77.3772648,3a,41.4y,329.64h,86.93t/data=!3m6!1e1!3m4!1sqVMiKzzRS-NULIXyfLN8ig!2e0!7i16384!8i8192!5m1!1e1?hl=en).
There's also 10 miles to I-77 South (https://www.google.com/maps/@36.9641949,-81.0842656,3a,43.1y,77.89h,86.8t/data=!3m6!1e1!3m4!1sqLWyhzhhvOhXz1pmYytnig!2e0!7i16384!8i8192!5m1!1e1?hl=en) on I-81 North approaching the beginning of their overlap at exit 72. There used to be similar signs on I-81 South approaching exit 81, but those were replaced at some point.
Quote from: sprjus4 on June 16, 2020, 08:39:22 AM
....
I'd be curious if there were any other situations of an interstate trailblazer posted in a state that it never enters.
I-287 North in New Jersey from exit 57 onward contains several references to its parent that it ultimately meets just over the line in New York.
Does this (https://goo.gl/maps/gaMS6WVzd7ZajNA57) count as an "advance warning for interchange"?
Quote from: jmacswimmer on June 16, 2020, 09:11:41 AM
Quote from: sprjus4 on June 16, 2020, 08:25:16 AM
Not sure if this would count as an official interchange sign, but I-68 in 58 miles (https://www.google.com/maps/@39.3987602,-77.3319891,3a,49y,329.87h,84.85t/data=!3m6!1e1!3m4!1sHrZYu-B29cogbQMjd0KqEQ!2e0!7i13312!8i6656!5m1!1e1) outside Frederick, MD along I-70 West. I believe there's a similar sign on nearby I-270 North approaching the I-70 West junction.
Indeed (https://www.google.com/maps/@39.3353073,-77.3772648,3a,41.4y,329.64h,86.93t/data=!3m6!1e1!3m4!1sqVMiKzzRS-NULIXyfLN8ig!2e0!7i16384!8i8192!5m1!1e1?hl=en).
There's also 10 miles to I-77 South (https://www.google.com/maps/@36.9641949,-81.0842656,3a,43.1y,77.89h,86.8t/data=!3m6!1e1!3m4!1sqLWyhzhhvOhXz1pmYytnig!2e0!7i16384!8i8192!5m1!1e1?hl=en) on I-81 North approaching the beginning of their overlap at exit 72. There used to be similar signs on I-81 South approaching exit 81, but those were replaced at some point.
Quote from: sprjus4 on June 16, 2020, 08:39:22 AM
....
I'd be curious if there were any other situations of an interstate trailblazer posted in a state that it never enters.
I-287 North in New Jersey from exit 57 onward contains several references to its parent that it ultimately meets just over the line in New York.
Also this one on NJ 23 in Montague (I-84 comes within 50 feet of NJ as it crosses the Delaware River, but it never enters)
https://goo.gl/maps/n5VRvkmzrF9w9Dee8
Quote from: kphoger on June 16, 2020, 10:45:39 AM
Does this (https://goo.gl/maps/gaMS6WVzd7ZajNA57) count as an "advance warning for interchange"?
The NYS Thruway does that same thing, too. Under the broad scope of what those actual words mean, yes, that is an advance warning for interchange, but not what I'm looking for with this thread.
For this thread I'm looking for signs that have everything that's on a standard 1 mile or 1/2 mile advance sign: tab with exit number, route number or street name, and destination(s).
Can we include advance signage for rest areas/service plazas into the discussion? I can think of several states (such as PA & NY) that give quite the advance notice for their service plazas - for example, here's one on the PA Turnpike (https://www.google.com/maps/@39.982204,-78.7252617,3a,43.8y,268.65h,89.25t/data=!3m6!1e1!3m4!1sgOTA5THEgLfAuN3-m0GeHg!2e0!7i16384!8i8192!5m1!1e1?hl=en), and one on I-83 North (https://www.google.com/maps/@39.5180705,-76.6615636,3a,75y,27.83h,88.45t/data=!3m6!1e1!3m4!1s3MjFYBYDM3IJGhOPs5RoZw!2e0!7i13312!8i6656!5m1!1e1?hl=en) leaving the Baltimore area.
Quote from: webny99 on June 15, 2020, 09:34:59 PM
Ontario, Canada, has an interesting practice of posting the first advance warning sign for the next interchange at the gore point of the previous interchange.
Here's an example (https://www.google.com/maps/@43.1891386,-79.4827481,3a,38.5y,95.38h,91.17t/data=!3m6!1e1!3m4!1sj_O-sMqWomHmRkw_9co26A!2e0!7i13312!8i6656!5m1!1e1). This means that the amount of advance notice you get for the interchange depends on how much distance there is between the exits. It also leads to some cases of excessive advance notice, like the one linked to for 7 km, which translates to 4.34 miles.
Are there any states in the US that use this same practice in a widespread way?
Additionally, what is the longest distance on an advance warning sign in the US? This does not include interchange sequence signs - we already have a thread for those. This is just for signs that refer to a single upcoming interchange. Here's 2 miles to I-271 (https://www.google.com/maps/@41.62752,-81.3994832,3a,75y,226.77h,92.4t/data=!3m6!1e1!3m4!1svCUKzRnaGDbzm2SkVpKnHg!2e0!7i16384!8i8192!5m1!1e1) east of Cleveland, OH.
Some states use 2 miles regularly. Others, like NY, are more sparse. What is the standard for your state? Does it differ for urban vs. rural areas?
(Also, is there a better, more concise name for these than 'Advance Warning for Interchange Signs'? That seems clumsy - if there's a better term I'll update the thread title.)
As an aside, Ontario for the record calls that kind of sign a pre-advance (according to Book 8 of the Ontario Traffic Manual) The advance in Ontario is either the ground mounted advance usually 1km back or the unique overhead signs with the arrows about 300-600m back from an interchange. The highest on a pre-advance I can think of right now for a single exit I think is for York-Durham Line at 407 WB/Brock Road interchange, has an advance of 8 km I think.
I know you asked for US examples, but there's a ground mounted advance if you will on the 401 WB beyond Woodstock which reads
{402}
Sarnia
EXIT 45 km
Unless it's not there, as I've not been that way in quite some time, that's the kind of example you're looking for.
Quote from: jmacswimmer on June 16, 2020, 12:24:46 PM
Can we include advance signage for rest areas/service plazas into the discussion? I can think of several states (such as PA & NY) that give quite the advance notice for their service plazas - for example, here's one on the PA Turnpike (https://www.google.com/maps/@39.982204,-78.7252617,3a,43.8y,268.65h,89.25t/data=!3m6!1e1!3m4!1sgOTA5THEgLfAuN3-m0GeHg!2e0!7i16384!8i8192!5m1!1e1?hl=en), and one on I-83 North (https://www.google.com/maps/@39.5180705,-76.6615636,3a,75y,27.83h,88.45t/data=!3m6!1e1!3m4!1s3MjFYBYDM3IJGhOPs5RoZw!2e0!7i13312!8i6656!5m1!1e1?hl=en) leaving the Baltimore area.
You can find some of those signs (https://goo.gl/maps/GAdSb9cjZjJ2Xnjg6) scattered around rural MN as well- they don't seem to serve any purpose since Minnesota already lists the distance to the next rest area at each rest area ("Rest Area 'X' Miles/ Next Rest Area 'X' Miles"- type signs). They would make sense as supplemental signs where a lot of long-distance traffic enters the freeway after the previous rest area to inform truckers and other travelers "new" to the highway of rest stops (which it seems like is the case in your second example), but in MN they seem to be purely for random reassurance and not based on traffic patterns at all.
Quote from: MisterSG1 on June 16, 2020, 12:51:29 PM
I know you asked for US examples, but there's a ground mounted advance if you will on the 401 WB beyond Woodstock which reads
{402}
Sarnia
EXIT 45 km
Unless it's not there, as I've not been that way in quite some time, that's the kind of example you're looking for.
Still there as of August 2019, according to GSV (https://goo.gl/maps/57SMxG7TLdxydEqp6).
Quote from: webny99 on June 15, 2020, 09:34:59 PM
Ontario, Canada, has an interesting practice of posting the first advance warning sign for the next interchange at the gore point of the previous interchange.
Here's an example (https://www.google.com/maps/@43.1891386,-79.4827481,3a,38.5y,95.38h,91.17t/data=!3m6!1e1!3m4!1sj_O-sMqWomHmRkw_9co26A!2e0!7i13312!8i6656!5m1!1e1).
This only happens on relatively urban parts of freeways (these don't appear on signs that are on the roadside, only on overhead gantries).
Quote from: jmacswimmer on June 16, 2020, 12:24:46 PM
Can we include advance signage for rest areas/service plazas into the discussion? I can think of several states (such as PA & NY) that give quite the advance notice for their service plazas - for example, here's one on the PA Turnpike (https://www.google.com/maps/@39.982204,-78.7252617,3a,43.8y,268.65h,89.25t/data=!3m6!1e1!3m4!1sgOTA5THEgLfAuN3-m0GeHg!2e0!7i16384!8i8192!5m1!1e1?hl=en), and one on I-83 North (https://www.google.com/maps/@39.5180705,-76.6615636,3a,75y,27.83h,88.45t/data=!3m6!1e1!3m4!1s3MjFYBYDM3IJGhOPs5RoZw!2e0!7i13312!8i6656!5m1!1e1?hl=en) leaving the Baltimore area.
This, also on I-88, should be entered into the contest: https://goo.gl/maps/8sGyjCy9RWek6bZs5
Quote from: 1995hoo on June 16, 2020, 09:11:12 AM
Quote from: sprjus4 on June 16, 2020, 08:39:22 AM
....
I'd be curious if there were any other situations of an interstate trailblazer posted in a state that it never enters.
Sure. There are several I-295 trailblazers on surface streets in Virginia for the route of that number across the river in Maryland and DC.
Here's one on Mill Road in Alexandria, for example; I passed this one on Sunday on my way home from the bottle recycling place on Eisenhower Avenue: https://goo.gl/maps/dPCmzvjHz8P8Hjcb6 (Bonus: Go back to the intersection just before where the camera is for a very ugly I-95 shield.)
Here's another on Eisenhower a short distance east of there: https://goo.gl/maps/1EKXNeN7UX4R7bTW8 (there's another a little further along in the background)
Go around the corner onto Mill Road and there's another pointing the way back: https://goo.gl/maps/7kY1zLswyqiqW2Ly7
There are I-12 shields in Mississippi (with the Mississippi state name) - https://goo.gl/maps/7m71XwNeabBij1qo8
There are I-185 shields in Alabama - https://goo.gl/maps/7du49qV1ZH4TvMaV6
There are I-59 shields in Tennessee - https://goo.gl/maps/ZhSER7PC3EZCHr6Z7
There are I-64 shields in Ohio - https://goo.gl/maps/FbZPs9nQbBm5nGpr8
There are I-68 shields in Pennsylvania - https://goo.gl/maps/GAoYusf9JUrTQ8wv9
There are I-270 shields in Virginia - https://goo.gl/maps/yeosJdajab3CqMRH9
Could've sworn I've seen an I-66 shield in Maryland but cannot find it.
Surprisingly there is no I-84 shield in New Jersey (though I found a US 6 shield). You can see an I-84 shield from NJ on NJ 23 but all the signs are on the NY side of the line.
Quote from: Mapmikey on June 16, 2020, 08:37:56 PM
There are I-12 shields in Mississippi (with the Mississippi state name) - https://goo.gl/maps/7m71XwNeabBij1qo8
There are I-185 shields in Alabama - https://goo.gl/maps/7du49qV1ZH4TvMaV6
There are I-59 shields in Tennessee - https://goo.gl/maps/ZhSER7PC3EZCHr6Z7
There are I-64 shields in Ohio - https://goo.gl/maps/FbZPs9nQbBm5nGpr8
There are I-68 shields in Pennsylvania - https://goo.gl/maps/GAoYusf9JUrTQ8wv9
There are I-270 shields in Virginia - https://goo.gl/maps/yeosJdajab3CqMRH9
Could've sworn I've seen an I-66 shield in Maryland but cannot find it.
Surprisingly there is no I-84 shield in New Jersey (though I found a US 6 shield). You can see an I-84 shield from NJ on NJ 23 but all the signs are on the NY side of the line.
Yes - The I-66 reference in Maryland is on this overhead (https://www.google.com/maps/@39.0603426,-76.9235214,3a,37.5y,231.89h,89.72t/data=!3m6!1e1!3m4!1sWNgkY4Wy5G7m9TwqLcx1-Q!2e0!7i16384!8i8192?hl=en) on I-95 south approaching I-495.
I wonder if there's any I-80/I-90 shields in Michigan where the Indiana Toll Road is running just south of the state line?
EDIT: Yes, US 12 at the M-66 intersection (https://www.google.com/maps/@41.7979407,-85.4292477,3a,75y,102.31h,88.14t/data=!3m6!1e1!3m4!1sMdtIfD7rAr-oLH4Lqbyc5Q!2e0!7i13312!8i6656!5m1!1e1?hl=en) (which leads to Toll Road exit 121 just over the border)
Quote from: Mapmikey on June 16, 2020, 08:37:56 PM
Surprisingly there is no I-84 shield in New Jersey (though I found a US 6 shield). You can see an I-84 shield from NJ on NJ 23 but all the signs are on the NY side of the line.
Isn't this "JCT I-84" sign technically on the New Jersey side?
https://www.google.com/maps/@41.3528956,-74.6854571,3a,49.4y,36.61h,78.32t/data=!3m6!1e1!3m4!1sz5OutaecCC8UqF4zjDha9w!2e0!7i16384!8i8192!5m1!1e1
Quote from: Mapmikey on June 16, 2020, 08:37:56 PM
There are I-270 shields in Virginia - https://goo.gl/maps/yeosJdajab3CqMRH9
Another one here before the American Legion Bridge at the Potomac River (the 270 shield fell off and was missing for quite a few years but I reported it to VDOT and they eventually replaced it):
https://www.google.com/maps/@38.9619546,-77.1870067,3a,75y,67.54h,91.54t/data=!3m6!1e1!3m4!1s1zMxZt_8B2Z8rA9-OWuBiQ!2e0!7i16384!8i8192
Quote from: Mapmikey on June 16, 2020, 08:37:56 PM
Could've sworn I've seen an I-66 shield in Maryland but cannot find it.
There used to be one on southbound MD-295 (B-W Parkway) at MD-193 in Greenbelt, but it is gone.
This one is still there on southbound I-95 between MD-200 (ICC) and MD-212 in Beltsville:
https://www.google.com/maps/@39.0601994,-76.9238192,3a,75y,214.74h,101.13t/data=!3m6!1e1!3m4!1sQL7HNMmvqjPvTblj46QrGQ!2e0!7i16384!8i8192
Here's a relatively new one in Northern Virginia approaching the Springfield interchange, although by no means the longest in the state: https://www.google.com/maps/@38.6741307,-77.2394255,3a,75y,64.35h,92.4t/data=!3m6!1e1!3m4!1sjU_Oh7XIg_xyNvIYJKPEJQ!2e0!7i16384!8i8192?hl=en&authuser=0
Personally wouldn't mind seeing a similar sign just after the northern I-295 interchange near Richmond. However, what would be even better IMO would be having ones that say "I-695 Baltimore Beltway 22 miles" and "I-95/I-495 Capital Beltway 22 miles" just after the College Park (northbound) and Arbutus (southbound) interchanges respectively.
Quote from: Jmiles32 on June 16, 2020, 09:29:51 PM
Here's a relatively new one in Northern Virginia approaching the Springfield interchange, although by no means the longest in the state: https://www.google.com/maps/@38.6741307,-77.2394255,3a,75y,64.35h,92.4t/data=!3m6!1e1!3m4!1sjU_Oh7XIg_xyNvIYJKPEJQ!2e0!7i16384!8i8192?hl=en&authuser=0
That would be the first mention of New York on I-95 northbound.
Quote from: andrepoiy on June 16, 2020, 05:53:07 PM
Quote from: webny99 on June 15, 2020, 09:34:59 PM
Ontario, Canada, has an interesting practice of posting the first advance warning sign for the next interchange at the gore point of the previous interchange.
Here's an example (https://www.google.com/maps/@43.1891386,-79.4827481,3a,38.5y,95.38h,91.17t/data=!3m6!1e1!3m4!1sj_O-sMqWomHmRkw_9co26A!2e0!7i13312!8i6656!5m1!1e1).
This only happens on relatively urban parts of freeways (these don't appear on signs that are on the roadside, only on overhead gantries).
I actually think it's not so much urban vs. rural as it is 6-lane highway vs. 4-lane highway. Ontario seems to use overhead signs, and therefore, this signage pattern, primarily on 6-lane highways. Whereas on 4-lane highways, if there's no overhead, there's not much point in posting an advance warning for the next interchange, so they'll just post it the standard 1 or 2 km out instead.
This is the longest I ever saw in Michigan, and it was definitely an anomaly. I have to assume someone thought motorists might confuse the surface street business route for the interstate freeway. The sign no longer exists. US-127 in East Lansing:
(https://i.imgur.com/JBi7TX5.jpg)
I saw that PA has one for I-78 on PA 33 4.5 miles away.
The airport for Kansas City has one 5 miles out on I-29 N Bound.
NJ 124 had one on I-287 in NJ 7 miles out at one time near Bernardsville heading northbound.
This sign was installed as part of the I-66 / US-15 DDI project in Haymarket, VA, and lists I-81 as being 41 miles west.
https://goo.gl/maps/S94KKTir2MURdySm8 (https://goo.gl/maps/S94KKTir2MURdySm8)
Quote from: sprjus4 on June 16, 2020, 09:04:29 PM
Quote from: Mapmikey on June 16, 2020, 08:37:56 PM
Surprisingly there is no I-84 shield in New Jersey (though I found a US 6 shield). You can see an I-84 shield from NJ on NJ 23 but all the signs are on the NY side of the line.
Isn't this "JCT I-84" sign technically on the New Jersey side?
https://www.google.com/maps/@41.3528956,-74.6854571,3a,49.4y,36.61h,78.32t/data=!3m6!1e1!3m4!1sz5OutaecCC8UqF4zjDha9w!2e0!7i16384!8i8192!5m1!1e1
What threw me was that it is on the same signpost as a NY county 15 shield. The pavement change one might expect at a state line is such that the I-84 jct shield does seem to be in New Jersey.
Quote from: roadman65 on June 17, 2020, 02:09:08 AM
I saw that PA has one for I-78 on PA 33 4.5 miles away.
4 miles, actually (https://www.google.com/maps/@40.6894139,-75.2892695,3a,26.3y,172.95h,96.26t/data=!3m6!1e1!3m4!1sovXBNp2cvEaYxCRzBj5c6Q!2e0!7i16384!8i8192!5m1!1e1?hl=en). Surprised I didn't remember that one for how many times I've driven under it.
Quote from: webny99 on June 17, 2020, 09:55:34 PM
Quote from: roadman65 on June 17, 2020, 02:09:08 AM
I saw that PA has one for I-78 on PA 33 4.5 miles away.
4 miles, actually (https://www.google.com/maps/@40.6894139,-75.2892695,3a,26.3y,172.95h,96.26t/data=!3m6!1e1!3m4!1sovXBNp2cvEaYxCRzBj5c6Q!2e0!7i16384!8i8192!5m1!1e1?hl=en). Surprised I didn't remember that one for how many times I've driven under it.
That reminds me, in the same area there's a sign on US 22 West for PA 33, 5 miles (https://www.google.com/maps/@40.6946263,-75.2058365,3a,51.1y,273.89h,87.99t/data=!3m6!1e1!3m4!1s4xMy0ePiZ_dNXlJBhvnPbA!2e0!7i16384!8i8192!5m1!1e1?hl=en) (which, interestingly, references I-80 even though the signs closer to the interchange reference Stroudsburg)
Quote from: jmacswimmer on June 18, 2020, 08:52:44 AM
Quote from: webny99 on June 17, 2020, 09:55:34 PM
Quote from: roadman65 on June 17, 2020, 02:09:08 AM
I saw that PA has one for I-78 on PA 33 4.5 miles away.
4 miles, actually (https://www.google.com/maps/@40.6894139,-75.2892695,3a,26.3y,172.95h,96.26t/data=!3m6!1e1!3m4!1sovXBNp2cvEaYxCRzBj5c6Q!2e0!7i16384!8i8192!5m1!1e1?hl=en). Surprised I didn't remember that one for how many times I've driven under it.
That reminds me, in the same area there's a sign on US 22 West for PA 33, 5 miles (https://www.google.com/maps/@40.6946263,-75.2058365,3a,51.1y,273.89h,87.99t/data=!3m6!1e1!3m4!1s4xMy0ePiZ_dNXlJBhvnPbA!2e0!7i16384!8i8192!5m1!1e1?hl=en) (which, interestingly, references I-80 even though the signs closer to the interchange reference Stroudsburg)
Given how that sign is visible from the PA 611 exit, I wouldn't be surprised if the reference to I-80 is to encourage people to keep going to PA 33 to get to I-80 instead of using PA 611.
On the NYS Thruway northbound, I guess to limit confusion between "Route 17" at the upcoming Woodbury exit, and "Exit 17" for I-84. March 21, 2007.
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fwww.teresco.org%2Fpics%2Fsigns%2F20070321%2Fi84exit17.jpg&hash=d4f472afe1af394ed578866a1f3974a258e2b0d8)
Quote from: wanderer2575 on June 17, 2020, 02:02:21 AM
This is the longest I ever saw in Michigan, and it was definitely an anomaly. I have to assume someone thought motorists might confuse the surface street business route for the interstate freeway. The sign no longer exists. US-127 in East Lansing:
(https://i.imgur.com/JBi7TX5.jpg)
And what's strange there is that there is another exit before I-69. How long has that sign been gone for? I don't ever remember seeing that one.
I am well aware of what "Gd" means on those signs, but every time I see them (or similar) in a picture, it looks to me like it should mean "Good."
(Down South, "GD" is often used as a proxy expression for a profanity in order to avoid blaspheming, though it seems to me if you use it with the intent of saying the longer word without actually saying it, aren't you effectively blaspheming anyway?)
Quote from: 1995hoo on June 18, 2020, 10:07:12 AM
I am well aware of what "Gd" means on those signs, but every time I see them (or similar) in a picture, it looks to me like it should mean "Good."
(Down South, "GD" is often used as a proxy expression for a profanity in order to avoid blaspheming, though it seems to me if you use it with the intent of saying the longer word without actually saying it, aren't you effectively blaspheming anyway?)
Grand River will throw you off, there is another Grand River Road not far from the more well known Grand River Avenue and then it switches names once you get into Kent County it becomes Cascade.
They do it when the Mackinac Bridge is the control city 9n I-75 and US-127 they say Mackinac Br.
Quote from: webny99 on June 15, 2020, 09:34:59 PM
Here's 2 miles to I-271 (https://www.google.com/maps/@41.62752,-81.3994832,3a,75y,226.77h,92.4t/data=!3m6!1e1!3m4!1svCUKzRnaGDbzm2SkVpKnHg!2e0!7i16384!8i8192!5m1!1e1) east of Cleveland, OH.
Some states use 2 miles regularly.
1- and/or 2-Mile advance notices are common in Ohio (2 for most major interchanges), 2 Miles especially on the Ohio Turnpike.
One stands out in particular -- a 3-mile advance sign on I-480 East in Cleveland. https://goo.gl/maps/x97kricPHtuqbjQA8
Quote from: webny99 on June 15, 2020, 09:34:59 PM
Ontario, Canada, has an interesting practice of posting the first advance warning sign for the next interchange at the gore point of the previous interchange.
Here's an example (https://www.google.com/maps/@43.1891386,-79.4827481,3a,38.5y,95.38h,91.17t/data=!3m6!1e1!3m4!1sj_O-sMqWomHmRkw_9co26A!2e0!7i13312!8i6656!5m1!1e1). This means that the amount of advance notice you get for the interchange depends on how much distance there is between the exits. It also leads to some cases of excessive advance notice, like the one linked to for 7 km, which translates to 4.34 miles.
Are there any states in the US that use this same practice in a widespread way?
Additionally, what is the longest distance on an advance warning sign in the US? This does not include interchange sequence signs - we already have a thread for those. This is just for signs that refer to a single upcoming interchange. Here's 2 miles to I-271 (https://www.google.com/maps/@41.62752,-81.3994832,3a,75y,226.77h,92.4t/data=!3m6!1e1!3m4!1svCUKzRnaGDbzm2SkVpKnHg!2e0!7i16384!8i8192!5m1!1e1) east of Cleveland, OH.
Some states use 2 miles regularly. Others, like NY, are more sparse. What is the standard for your state? Does it differ for urban vs. rural areas?
(Also, is there a better, more concise name for these than 'Advance Warning for Interchange Signs'? That seems clumsy - if there's a better term I'll update the thread title.)
Because many California freeways were often built by widening or slightly offsetting from other roads, it is common for some freeways to have several exits that either are named or signed as "you can get to ..." close to each other. This happens on I-280 with Stevens Creek Blvd in Santa Clara county, with Mission Blvd on I-680 and I-880 in Alameda county, and with Fremont Street in Monterey county. CalTrans will frequently post signs indicating the distance to a similarly named later exit near the first one, but this isn't exactly what the OP had in mind.
Also, not what the OP had in mind, CalTrans will post the distance to a CalTrans maintained Rest Area just in advance of exits with limited services so as to discourage the use of the limited service exits in favor of Rest Areas.
The most obvious examples of what the OP had in mind, if there were to be any in California, Utica Ave and Twissleman Rd along I-5 do NOT have signs indicating the distance to the next exit.
Quote from: jmacswimmer on June 16, 2020, 12:24:46 PM
Can we include advance signage for rest areas/service plazas into the discussion? I can think of several states (such as PA & NY) that give quite the advance notice for their service plazas ...
Quote from: michravera on June 21, 2020, 12:29:08 PM
Also, not what the OP had in mind, CalTrans will post the distance to a CalTrans maintained Rest Area just in advance of exits with limited services so as to discourage the use of the limited service exits in favor of Rest Areas.
I wasn't really looking for rest areas with this thread. "Next Service Area XX miles" signs are common on the Thruway, too, but I wouldn't call those "advance warning" in the sense of preparing you for your exit, since there's often several intermediate exits.
These are often posted just in advance of a service area as a general informational reference to help you decide if you should use this service area or wait for the next one. Here's Next Service Area 28 miles (https://www.google.com/maps/@42.964717,-76.8791283,3a,51.8y,276.3h,90.64t/data=!3m6!1e1!3m4!1s92io75m5Zi5FhNIscqTb0Q!2e0!7i16384!8i8192) on approach to the Junius Ponds Service Area, posted between the standard 2 mile and 1-1/2 mile advance signs.
Quote from: webny99 on June 21, 2020, 01:53:15 PM
I wasn't really looking for rest areas with this thread. "Next Service Area XX miles" signs are common on the Thruway, too, but I wouldn't call those "advance warning" in the sense of preparing you for your exit, since there's often several intermediate exits.
These are often posted just in advance of a service area as a general informational reference to help you decide if you should use this service area or wait for the next one. Here's Next Service Area 28 miles (https://www.google.com/maps/@42.964717,-76.8791283,3a,51.8y,276.3h,90.64t/data=!3m6!1e1!3m4!1s92io75m5Zi5FhNIscqTb0Q!2e0!7i16384!8i8192) on approach to the Junius Ponds Service Area, posted between the standard 2 mile and 1-1/2 mile advance signs.
I was moreso referring to long-distance service plaza signs such as this (https://www.google.com/maps/@40.7463842,-80.2017254,3a,37.5y,141.57h,92.04t/data=!3m6!1e1!3m4!1sfcoaiF58kX4ZeyaL9sG0qQ!2e0!7i16384!8i8192?hl=en) and this (https://www.google.com/maps/@42.9147343,-74.1593871,3a,37.5y,293.45h,87.53t/data=!3m6!1e1!3m4!1s9FeGdZs7iEqwhPzCCDl3EQ!2e0!7i13312!8i6656?hl=en) that match the signs immediately preceding the plaza.
For rest areas, here's 107 miles (https://www.google.com/maps/@37.9918141,-77.4932263,3a,48.9y,187.49h,80.3t/data=!3m6!1e1!3m4!1sFPk1N2q6PMKkygPXQU5MMw!2e0!7i16384!8i8192!5m1!1e1) on I-95 South at MM108 near Ruther Glen, VA. The next rest area would be the North Carolina Welcome Center, since the rest area near Carson at MM35 is only for northbound traffic.
I-88 has a few of the longer distance ones.
Route 47 - 16 miles https://www.google.com/maps/@41.900344,-88.7242285,3a,75y,88.43h,92.07t/data=!3m6!1e1!3m4!1s2mrtmGJHCqmFQ-zLnxf1uw!2e0!7i13312!8i6656?hl=en
I-39/US 51 - 13 miles
https://www.google.com/maps/@41.9037085,-88.7684279,3a,75y,278.32h,94.03t/data=!3m6!1e1!3m4!1sEBLwXTjwD2HNZirGrPGDXQ!2e0!7i13312!8i6656?hl=en
Route 26 - 25 miles
https://www.google.com/maps/@41.9005787,-89.0615463,3a,75y,269.11h,100.84t/data=!3m6!1e1!3m4!1seUr9DNpIrv_wtzL_xralMw!2e0!7i13312!8i6656?hl=en
Quote from: sprjus4 on June 16, 2020, 09:04:29 PM
Quote from: Mapmikey on June 16, 2020, 08:37:56 PM
Surprisingly there is no I-84 shield in New Jersey (though I found a US 6 shield). You can see an I-84 shield from NJ on NJ 23 but all the signs are on the NY side of the line.
Isn't this "JCT I-84" sign technically on the New Jersey side?
https://www.google.com/maps/@41.3528956,-74.6854571,3a,49.4y,36.61h,78.32t/data=!3m6!1e1!3m4!1sz5OutaecCC8UqF4zjDha9w!2e0!7i16384!8i8192!5m1!1e1
Going by my grainy picture at night in 2011...yes.
(https://i.imgur.com/H8KjqI9.jpg)
Then you have THIS on I-91 in Springfield, MA. Exit 14 is up on the West Springfield/Holyoke town line.
(https://i.imgur.com/ReyeaIY.jpg)
webny99 found an example in Ontario that is 7 km away (Victoria Ave), well, now I found one that's 12 km.
NB Highway 400 at King Road, where it lists the next exits, which are 9 and 12 km away.
(https://i.imgur.com/8LmX8pM.png)
3, 6, and 10 miles: https://goo.gl/maps/fQ6c3STXHH7DEmcq8
Quote from: EpicRoadways on June 16, 2020, 12:53:00 PM
Quote from: jmacswimmer on June 16, 2020, 12:24:46 PM
Can we include advance signage for rest areas/service plazas into the discussion? I can think of several states (such as PA & NY) that give quite the advance notice for their service plazas - for example, here's one on the PA Turnpike (https://www.google.com/maps/@39.982204,-78.7252617,3a,43.8y,268.65h,89.25t/data=!3m6!1e1!3m4!1sgOTA5THEgLfAuN3-m0GeHg!2e0!7i16384!8i8192!5m1!1e1?hl=en), and one on I-83 North (https://www.google.com/maps/@39.5180705,-76.6615636,3a,75y,27.83h,88.45t/data=!3m6!1e1!3m4!1s3MjFYBYDM3IJGhOPs5RoZw!2e0!7i13312!8i6656!5m1!1e1?hl=en) leaving the Baltimore area.
You can find some of those signs (https://goo.gl/maps/GAdSb9cjZjJ2Xnjg6) scattered around rural MN as well- they don't seem to serve any purpose since Minnesota already lists the distance to the next rest area at each rest area ("Rest Area 'X' Miles/ Next Rest Area 'X' Miles"- type signs). They would make sense as supplemental signs where a lot of long-distance traffic enters the freeway after the previous rest area to inform truckers and other travelers "new" to the highway of rest stops (which it seems like is the case in your second example), but in MN they seem to be purely for random reassurance and not based on traffic patterns at all.
California regularly puts up "Rest Area" distances just advance of limited service exits (so that you won't stop to go to the loo at the poor guy's 2-pump/1-hole station that only has Coke, Pepsi, Orange Crush, or Bud; Regular, Bar-B-Cue or Fritos; and Milky Way or Mounds; and only about 6 of each) . It also often puts up "Next Rest Area" distances just advance of rest area exits, so that you know whether you need to stop or can make it to the next one.
As to the OP's question: It's really common in California, especially as you get to the end of urban areas, for the distance to the next exit to be hung from the overpass of the current exit regardless of how far it is. 2 Miles or 2
1/
2 would be entirely common. I know that there is a "3 Miles" signs near CASR-166. "European Style" interchange diagrams are frequently at longer distances still.
Doesn't I-195 in NJ have far advanced signs now as part of their trial to inform motorists of the distance to the next exit?
Quote from: webny99 on June 15, 2020, 09:34:59 PM
(Also, is there a better, more concise name for these than 'Advance Warning for Interchange Signs'? That seems clumsy - if there's a better term I'll update the thread title.)
In the MUTCD they are called "Advance Guide Signs". So your own name for them is not that far off.
In Georgia there's this sign on I-75 south for I-285, 4 3/4 miles (north side): https://goo.gl/maps/uizic5PMEK8hT3Mt5 The weird thing about that one is, there are two other interchanges (261, 260) in between the two indicated on those signs (263 and 259).