Only in this state....

[jp the roadgeek]

In NJ, more specifically the GSP, exit numbers on a tab without the word "Exit" before the number

[roadman65]

In NJ, more specifically the GSP, exit numbers on a tab without the word "Exit" before the number

Actually no more of that as they now have the MUTCD in them.  The word "EXIT" does now appear.

[kphoger]

North Dakota has some 65 MPH county roads.

What's the highest speed limit on a dirt road?  There's at least one dirt road in ND with a 55 MPH speed limit:

The default speed limit for county roads in Kansas is 55 mph, with no distinction made between paved and unpaved.  According to the Wyoming DOT page that NE2 linked to, the default speed limit for unpaved county roads in Wyoming is 55 mph, and used to be 65 mph prior to 2011.

[1995hoo]

....

What's the highest speed limit on a dirt road?  There's at least one dirt road in ND with a 55 MPH speed limit:

....

My question would then be to ask what's the fastest folks have driven on dirt roads. I hit 80 mph on one in Alabama once during the 1990s, but it was a very smooth dirt road without the gravel and loose gunk you often see. I remember it well because I later learned that it was really stupid to go that fast because it was a low-lying county where the dirt roads often turn muddy fairly easily.

[kphoger]

I don't think I've gone over 75 on a gravel or dirt road.  A friend of mine from growing up said he once did 95 on a motorcycle on one.

[agentsteel53]

My question would then be to ask what's the fastest folks have driven on dirt roads. I hit 80 mph on one in Alabama once during the 1990s, but it was a very smooth dirt road without the gravel and loose gunk you often see. I remember it well because I later learned that it was really stupid to go that fast because it was a low-lying county where the dirt roads often turn muddy fairly easily.

I hit 102 on an old US-81 alignment in Kansas.  it was dead straight and level and I had about 5 miles of visibility, so I floored it.  took me about a quarter-mile to drop to 55mph safely when I was one section line (a mile) away from what I knew was gonna be a STOP sign.

[agentsteel53]

Some lettered routes in Missouri have a number after the letter(s).  And unlike in Wisconsin, lettered routes in Missouri are secondary state highways rather than county highways.

I would like to see a letter-number Missouri.

in Iowa, the county routes used to be solely letters, just like in Wisconsin, but now they are a letter-number system.

[agentsteel53]

Only in Illinois: centered exit tabs.

Also in Oregon...

And Washington (centered text on a full-width tab).  Centered tabs are less common but still easily found in New Jersey and Connecticut.

the California exit-numbering experiment of 1971 featured centered tabs.  Many survive.

[PHLBOS]

Only in Illinois: centered exit tabs.

Also in Oregon...

And Washington (centered text on a full-width tab).  Centered tabs are less common but still easily found in New Jersey and Connecticut.

the California exit-numbering experiment of 1971 featured centered tabs.  Many survive.

A lot of states used to have centered EXIT tabs.  Massachusetts had them until the mid-1980s.

[thenetwork]

Only in Illinois do they use the overhead BGS gantries (which cross over the entire roadway) whose side mounts have the shape similar to the Hancock Tower in Chicago.

[kphoger]

Some lettered routes in Missouri have a number after the letter(s).  And unlike in Wisconsin, lettered routes in Missouri are secondary state highways rather than county highways.

I would like to see a letter-number Missouri.

I would too.  I've never seen one, nor can I find any reference to their existence online.

[Big John]

Some lettered routes in Missouri have a number after the letter(s).  And unlike in Wisconsin, lettered routes in Missouri are secondary state highways rather than county highways.

I would like to see a letter-number Missouri.

I would too.  I've never seen one, nor can I find any reference to their existence online.

I had a relative that lived on a highway UU-8 in Missouri, so I had to look into this.  Agreed it was hard to find as it looks like those are farm roads and appear on "paper" only as they are marked as another local road.

Record of its existence and the road with a different name: http://www.loopnet.com/Property-Record/Farm-Road-Uu-8-Chadwick-MO-65629/BZG0uFg3w/Maps/

With those being administrative roads only, I may have to take back my statement.  Sorry.

[Alps]

North Dakota has some 65 MPH county roads.

What's the highest speed limit on a dirt road?  There's at least one dirt road in ND with a 55 MPH speed limit:

The default speed limit for county roads in Kansas is 55 mph, with no distinction made between paved and unpaved.  According to the Wyoming DOT page that NE2 linked to, the default speed limit for unpaved county roads in Wyoming is 55 mph, and used to be 65 mph prior to 2011.

Iowa also seems to be a default 55 - and I may have even seen it posted. Fastest I've gone is 65-70.

[roadman]

Only in Illinois: centered exit tabs.

Also in Oregon...

And Washington (centered text on a full-width tab).  Centered tabs are less common but still easily found in New Jersey and Connecticut.

the California exit-numbering experiment of 1971 featured centered tabs.  Many survive.

A lot of states used to have centered EXIT tabs.  Massachusetts had them until the mid-1980s.

Massachusetts started replacing centered tabs with right-side ones when exit numbers were added to signs along the Peabody to Salisbury section of I-95 in 1985.  Centered tabs were replaced on other Interstates and freeways as guide signs were replaced beginning in the late 1980s.

IIRC, the last section of freeway in Massachusetts to have the centered tabs replaced with right (and left) justified ones was Route 140 between Taunton and New Bedford, which was last re-signed in 2006.

[kphoger]

Some lettered routes in Missouri have a number after the letter(s).  And unlike in Wisconsin, lettered routes in Missouri are secondary state highways rather than county highways.

I would like to see a letter-number Missouri.

I would too.  I've never seen one, nor can I find any reference to their existence online.

I had a relative that lived on a highway UU-8 in Missouri, so I had to look into this.  Agreed it was hard to find as it looks like those are farm roads and appear on "paper" only as they are marked as another local road.

Record of its existence and the road with a different name: http://www.loopnet.com/Property-Record/Farm-Road-Uu-8-Chadwick-MO-65629/BZG0uFg3w/Maps/

With those being administrative roads only, I may have to take back my statement.  Sorry.

Yeah, that's not a state highway, just a local road.  Its name comes from its proximity to SSR-UU.  See my post far upthread regarding this very topic:  https://www.aaroads.com/forum/index.php?topic=8252.msg190571#msg190571.

[Mergingtraffic]

Only in CT where they detest the shared center turn lane.

[Beeper1]

Only in Illinois: centered exit tabs.

Also in Oregon...

And Washington (centered text on a full-width tab).  Centered tabs are less common but still easily found in New Jersey and Connecticut.

the California exit-numbering experiment of 1971 featured centered tabs.  Many survive.

A lot of states used to have centered EXIT tabs.  Massachusetts had them until the mid-1980s.

Massachusetts started replacing centered tabs with right-side ones when exit numbers were added to signs along the Peabody to Salisbury section of I-95 in 1985.  Centered tabs were replaced on other Interstates and freeways as guide signs were replaced beginning in the late 1980s.

IIRC, the last section of freeway in Massachusetts to have the centered tabs replaced with right (and left) justified ones was Route 140 between Taunton and New Bedford, which was last re-signed in 2006.

The Super-2 stretch of MA-2 between Erving and Athol still had all it's 30 year old center-tab BGSs until just last year when they were replaced with new right-side tabs.

CT still has a lot of centred tab signs. Pretty much anything button copy in CT has centered tabs.  Almost all of I-395, CT-2, CT-11, CT-9, and the eastern stretches of I-95.   

[mcdonaat]

Louisiana has center-tab exits along I-110 North, between LA 19 and US 61. The exit for US 61 is a split exit, so the 1-mile sign at LA 19 has US 61 as a center-tab.

[sp_redelectric]

In Oregon - the use of "DO NOT PASS" signs on the left side of the road, instead of the "NO PASSING ZONE" sign which is not used.

Also, the "Cars Trucks Campers Buses - Unlawful to Use Left Lanes Except when Passing" signs:

http://www.flickr.com/photos/raymondyue/6043975627/

[myosh_tino]

In Oregon - the use of "DO NOT PASS" signs on the left side of the road, instead of the "NO PASSING ZONE" sign which is not used.

Also, the "Cars Trucks Campers Buses - Unlawful to Use Left Lanes Except when Passing" signs:

http://www.flickr.com/photos/raymondyue/6043975627/

If I'm not mistaken, California also uses "DO NOT PASS" signs instead of the pennant-shaped "NO PASSING ZONE".

Also, the photo you linked to says trucks, campers, trailers and buses can't use the left lane except to pass.  Cars are not bound by this rule based on the photo.  California is a little less restrictive in that only trucks and cars towing trailers are restricted to the right lane except to pass. https://www.google.com/maps?ll=39.466995,-120.003735&spn=0.000311,0.000453&t=h&z=21&layer=c&cbll=39.466995,-120.003735&panoid=EEG241hzFnenSeOCblkv7Q&cbp=12,250.78,,2,1.7

[agentsteel53]

If I'm not mistaken, California also uses "DO NOT PASS" signs instead of the pennant-shaped "NO PASSING ZONE".

there's places in CA which use both.

[roadman65]

I do not know if this is only in one state, being New Jersey, but it seems to me that the Garden State has a law written into the books that prohibits trucks in the left lane on carriageways with three or more lanes.

I know NY, CT, and even FL now have them on three or more laned freeways, but New Jersey seems to implement them on arterials as well.  It leads me to believe that it is law, but then it could be a guide.

Anyway, it seems that NJ is the only state, that I have seen, that has this particular default based on this observation.  In Florida, six lane freeways are new as to most states as many have had (and still do have) four lane freeways statewide up until the 1980's or around.  Some had small urban sections built in the 70s and I believe that in Pennsylvania, I-81 between PA 581 and I-83 was the first section in the commonwealth to have a six lane freeway.

New Jersey and New York, and maybe Connecticut along with California and Chicagoland and possibly some other urban stretches of highway were the first to have six or more lane freeways or arterials.

[PHLBOS]

Massachusetts started replacing centered tabs with right-side ones when exit numbers were added to signs along the Peabody to Salisbury section of I-95 in 1985.

Actually, the first BGS' w/the right-side Exit tabs appeared on I-95 in 1987/1988 as part of the final extension to MA 128 project.  During the summers of '87 & '88; I worked at a land surveying/civil engineering firm along US 1 northbound in Danvers and remember seeing those new signs being erected along I-95.  The remaining BGS from Danvers to Newburyport (MA 113) had the exit tabs retrofitted on the centers of the existing mid-70s-vintage BGS'.  These would all be replaced during the mid-1990s w/the right-side mounted tabs. 

The mid-70s-vintage BGS' from Salisbury (MA 110) to the NH State Line already had center-mounted exit tabs on them w/the exit numbers blank.  The DPW simply just added the numbers onto those tabs.  Again, these would all be replaced during the mid-1990s w/the right-side mounted tabs.

CT still has a lot of centred tab signs. Pretty much anything button copy in CT has centered tabs.  Almost all of I-395, CT-2, CT-11, CT-9, and the eastern stretches of I-95.   

Stretches of I-84 & 691 have them as well in areas where older BGS' haven't been replaced yet.

I do not know if this is only in one state, being New Jersey, but it seems to me that the Garden State has a law written into the books that prohibits trucks in the left lane on carriageways with three or more lanes.

I know NY, CT, and even FL now have them on three or more laned freeways, but New Jersey seems to implement them on arterials as well.  It leads me to believe that it is law, but then it could be a guide.

Anyway, it seems that NJ is the only state, that I have seen, that has this particular default based on this observation.  In Florida, six lane freeways are new as to most states as many have had (and still do have) four lane freeways statewide up until the 1980's or around.  Some had small urban sections built in the 70s and I believe that in Pennsylvania, I-81 between PA 581 and I-83 was the first section in the commonwealth to have a six lane freeway.

New Jersey and New York, and maybe Connecticut along with California and Chicagoland and possibly some other urban stretches of highway were the first to have six or more lane freeways or arterials.

I've also seen truck-left lane prohibitions along Massachusetts highways 6-lanes & wider.  As a matter of act, along 8-lane stretches of I-93 & I-95; the left lane prohibition includes the 4 innermost lanes.

[jeffandnicole]

I do not know if this is only in one state, being New Jersey, but it seems to me that the Garden State has a law written into the books that prohibits trucks in the left lane on carriageways with three or more lanes.

I know NY, CT, and even FL now have them on three or more laned freeways, but New Jersey seems to implement them on arterials as well.  It leads me to believe that it is law, but then it could be a guide.

Anyway, it seems that NJ is the only state, that I have seen, that has this particular default based on this observation. 

I believe it's the rule rather than the exception in most states that trucks are banned from the left lane on roadways of 3 or more lanes. 

In some states (ie: Delaware), trucks are only permitted in the right 2 lanes, regardless of the number of lanes on the highway.  I-95 used to have signs posted to this effect.  However, in the short 9 mile stretch of 4 or 5 lane I-95, there's a median service plaza and a split for the toll plaza (heading southbound) or the 95/295 split (heading Northbound) so trucks are commonly found in all lanes of 95 anyway.

On the NJ Turnpike, even though the outer lanes are known as the truck lanes, trucks are still prohibited from the left lane.  Thus, out of the 6 (or 7) lanes heading in one direction, trucks are limited to only 2 of those lanes.

[sp_redelectric]

Also, the photo you linked to says trucks, campers, trailers and buses can't use the left lane except to pass.

Yeah, I was up late last night, it's "trucks, trailers, campers, buses" - NOT "cars".  And I was referring specifically to the style of sign, not the law itself.  California uses a different sign, and Washington is different altogether as the law (as written, not necessarily as ignored by most people) is more restrictive than Oregon and California.