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National Boards => General Highway Talk => Traffic Control => Topic started by: NJ on November 25, 2015, 09:41:15 PM

Title: Yellow vs White central divided lane
Post by: NJ on November 25, 2015, 09:41:15 PM
What countries uses Yellow vs White central divided lane (opposite traffic direction)?

USA, Canada, Mexico, Brazil all uses yellow, as does Norway (I believe the only European country?)
Title: Re: Yellow vs White central divided lane
Post by: SignGeek101 on November 25, 2015, 10:25:54 PM
I've been to Japan (uses white) and Indonesia, which now uses white. Yellow was used only to separate traffic on freeways, but was phased out a few years back, and white is used everywhere now. Yellow can still be found though. For two lane roads I believe white was always used. More info:

http://www.city-data.com/forum/world/1148170-yellow-vs-white-center-divided-line.html
Title: Re: Yellow vs White central divided lane
Post by: SignGeek101 on November 28, 2015, 10:49:24 AM
Equador also does.

https://goo.gl/maps/BMyARLtn34w
Title: Re: Yellow vs White central divided lane
Post by: realjd on November 28, 2015, 11:45:37 PM
The history on this is that a white broken line was used as the center line. When no passing zones were invented, they were marked as a barrier line on one side or the other of the broken white line. In many states, the no passing lines were yellow. The equivalent of a modern double yellow line would be a white broken line with a solid yellow line on either side.

In most countries, the broken center line went away and they just mark a double solid line for no passing, and most countries standardized on white or yellow for the center line. A few countries like New Zealand still use white for broken center lines and yellow for solid center lines, resulting in cases where one side has a solid yellow and one side has a broken white line.
Title: Re: Yellow vs White central divided lane
Post by: Jet380 on January 20, 2016, 02:40:54 AM
Australia uses white for all lines, with the exception of yellow for bus lanes. An American tourist got into a fatal crash a while back because he thought he was on a dual carriageway when he wasn't.

http://www.abc.net.au/news/2015-08-07/us-tourist-jerome-rubin-jailed-after-crash-killed-wife-toddler/6681618 (http://www.abc.net.au/news/2015-08-07/us-tourist-jerome-rubin-jailed-after-crash-killed-wife-toddler/6681618)
Title: Re: Yellow vs White central divided lane
Post by: Brandon on January 20, 2016, 06:46:24 AM
Quote from: Jet380 on January 20, 2016, 02:40:54 AM
Australia uses white for all lines, with the exception of yellow for bus lanes. An American tourist got into a fatal crash a while back because he thought he was on a dual carriageway when he wasn't.

http://www.abc.net.au/news/2015-08-07/us-tourist-jerome-rubin-jailed-after-crash-killed-wife-toddler/6681618 (http://www.abc.net.au/news/2015-08-07/us-tourist-jerome-rubin-jailed-after-crash-killed-wife-toddler/6681618)

This is exactly why North America has gone to yellow center lines.  I've seen photos of European and Australian roads, and without proper signage, how the hell can you tell which side is which?  IMHO, it's substandard.
Title: Re: Yellow vs White central divided lane
Post by: NJ on January 20, 2016, 10:10:04 AM
Quote from: Jet380 on January 20, 2016, 02:40:54 AM
Australia uses white for all lines, with the exception of yellow for bus lanes. An American tourist got into a fatal crash a while back because he thought he was on a dual carriageway when he wasn't.

http://www.abc.net.au/news/2015-08-07/us-tourist-jerome-rubin-jailed-after-crash-killed-wife-toddler/6681618 (http://www.abc.net.au/news/2015-08-07/us-tourist-jerome-rubin-jailed-after-crash-killed-wife-toddler/6681618)

Crazy... Wish it was yellow worldwide or at least double white
Title: Re: Yellow vs White central divided lane
Post by: vdeane on January 20, 2016, 12:57:57 PM
Ditto.  I have no clue how people in other parts of the world manage with all the lines being white, and that situation in Australia is just plain dangerous.  They should be forced to use something else for the bus lane (perhaps a UN resolution standardizing pavement markings?).
Title: Re: Yellow vs White central divided lane
Post by: NJ on January 20, 2016, 01:16:12 PM
Quote from: vdeane on January 20, 2016, 12:57:57 PM
Ditto.  I have no clue how people in other parts of the world manage with all the lines being white, and that situation in Australia is just plain dangerous.  They should be forced to use something else for the bus lane (perhaps a UN resolution standardizing pavement markings?).

They know by seeing this.... (https://upload.wikimedia.org/wikipedia/commons/thumb/0/06/Denmark_road_sign_A18.svg/60px-Denmark_road_sign_A18.svg.png) as well as knowing by the opposite traffic signs, but obviously yellow making it easier to distinguish.
Title: Re: Yellow vs White central divided lane
Post by: Pink Jazz on January 20, 2016, 02:06:15 PM
Quote from: NJ on January 20, 2016, 01:16:12 PM
Quote from: vdeane on January 20, 2016, 12:57:57 PM
Ditto.  I have no clue how people in other parts of the world manage with all the lines being white, and that situation in Australia is just plain dangerous.  They should be forced to use something else for the bus lane (perhaps a UN resolution standardizing pavement markings?).

They know by seeing this.... (https://upload.wikimedia.org/wikipedia/commons/thumb/0/06/Denmark_road_sign_A18.svg/60px-Denmark_road_sign_A18.svg.png) as well as knowing by the opposite traffic signs, but obviously yellow making it easier to distinguish.

Actually, this is Australia's two way traffic sign:
(https://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Australia_W4-11.svg/500px-Australia_W4-11.svg.png)

Australia's road signs are heavily inspired by the American MUTCD.
Title: Re: Yellow vs White central divided lane
Post by: Kacie Jane on January 20, 2016, 09:02:30 PM
Quote from: NJ on January 20, 2016, 10:10:04 AM
Quote from: Jet380 on January 20, 2016, 02:40:54 AM
Australia uses white for all lines, with the exception of yellow for bus lanes. An American tourist got into a fatal crash a while back because he thought he was on a dual carriageway when he wasn't.

http://www.abc.net.au/news/2015-08-07/us-tourist-jerome-rubin-jailed-after-crash-killed-wife-toddler/6681618 (http://www.abc.net.au/news/2015-08-07/us-tourist-jerome-rubin-jailed-after-crash-killed-wife-toddler/6681618)

Crazy... Wish it was yellow worldwide or at least double white

But it is double white.  That article doesn't have a photo, but if you click either of the "related story" links, it shows a photo of the accident site, with one solid and one broken line.

And regardless, if you're going to drive, it's your responsibility to know the rules of the road where you are.
Title: Re: Yellow vs White central divided lane
Post by: Jet380 on January 20, 2016, 10:26:40 PM
Quote from: Kacie Jane on January 20, 2016, 09:02:30 PM
But it is double white.

Not always! Australia's MUTCD now allows single solid lines to separate traffic going in opposite directions, having a less restrictive meaning than double lines. And the broken lines are always single of course.

Take this bridge for example: the middle lane is for cars going towards the camera. All the lanes are separated by single lines to allow for reconfiguration as needed.
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FWyM9sI5.png%3F1&hash=9dbecea10d629a4279e29f186ad1f07675465ef0)
https://goo.gl/AbjzBw (https://goo.gl/AbjzBw)

Sometimes you can tell which lanes are which from the cat's eye markers, which are colour-coded the same as lane lines in America.
Title: Re: Yellow vs White central divided lane
Post by: jakeroot on January 21, 2016, 03:12:14 AM
Quote from: Brandon on January 20, 2016, 06:46:24 AM
This is exactly why North America has gone to yellow center lines.  I've seen photos of European and Australian roads, and without proper signage, how the hell can you tell which side is which?  IMHO, it's substandard.

This used to be my opinion as well, but when you actually drive in Europe, it's a lot more obvious. First, they tend to use arrows on the pavement a lot more than we do. Most of the US only uses arrows if said lane is leaving the roadway (thusly showing a left or right arrow), with the thru-lane blank. Most of Europe uses arrows in each lane, which drastically reduces confusion at junctions. Second, the markings themselves, though white, tend to be slightly different. Some countries use longer dashed lines, others use thicker lines, still some others use two normal white lines with hash marks (i.e. a flush median). Wider roads tend to have flush medians in place of extra-wide lanes. The flush medians clearly indicate the central divider in these cases: https://goo.gl/t7ZwTN

If you want to get into the "substandard" argument, yellow lines have poorer reflectivity than their white counterparts, which results in poorer night-time visibility. This creates a potential safety hazard that wouldn't necessarily exist with all-white lines.
Title: Re: Yellow vs White central divided lane
Post by: realjd on January 22, 2016, 12:36:30 AM
Quote from: vdeane on January 20, 2016, 12:57:57 PM
Ditto.  I have no clue how people in other parts of the world manage with all the lines being white, and that situation in Australia is just plain dangerous.  They should be forced to use something else for the bus lane (perhaps a UN resolution standardizing pavement markings?).

We're in the minority with our yellow markings. All white seems to work well elsewhere. As for Australia, they have a lower road fatality rate than the US both measuring per capita and per km traveled.
Title: Re: Yellow vs White central divided lane
Post by: Jet380 on January 22, 2016, 04:21:14 AM
Quote from: realjd on January 22, 2016, 12:36:30 AM
As for Australia, they have a lower road fatality rate than the US both measuring per capita and per km traveled.

You can thank our rigid speed and red light camera enforcement for that  :-D
Title: Re: Yellow vs White central divided lane
Post by: NJ on January 22, 2016, 09:23:22 AM
Quote from: realjd on January 22, 2016, 12:36:30 AM
Quote from: vdeane on January 20, 2016, 12:57:57 PM
Ditto.  I have no clue how people in other parts of the world manage with all the lines being white, and that situation in Australia is just plain dangerous.  They should be forced to use something else for the bus lane (perhaps a UN resolution standardizing pavement markings?).

We're in the minority with our yellow markings. All white seems to work well elsewhere. As for Australia, they have a lower road fatality rate than the US both measuring per capita and per km traveled.

Yellow is common in North and South America, few countries in Asia and in Norway. Still many countries though but majority of the world uses all white.
White would have worked fine if opposite traffic was painted with double or solid white lane, not dashed just like two-way road.

Title: Re: Yellow vs White central divided lane
Post by: realjd on January 22, 2016, 11:16:30 AM
Quote from: NJ on January 22, 2016, 09:23:22 AM
Quote from: realjd on January 22, 2016, 12:36:30 AM
Quote from: vdeane on January 20, 2016, 12:57:57 PM
Ditto.  I have no clue how people in other parts of the world manage with all the lines being white, and that situation in Australia is just plain dangerous.  They should be forced to use something else for the bus lane (perhaps a UN resolution standardizing pavement markings?).

We're in the minority with our yellow markings. All white seems to work well elsewhere. As for Australia, they have a lower road fatality rate than the US both measuring per capita and per km traveled.

Yellow is common in North and South America, few countries in Asia and in Norway. Still many countries though but majority of the world uses all white.
White would have worked fine if opposite traffic was painted with double or solid white lane, not dashed just like two-way road.

The dash length is usually different for center lines vs lane dividers. Commonly, lane dividers are short lines spaced far apart, with center lines being longer with shorter gaps. It's rare everywhere though to find a multi-lane road with a dashed center line. Usually if there are multiple lanes on each side, there is a double line or median in the middle.
Title: Re: Yellow vs White central divided lane
Post by: on_wisconsin on January 22, 2016, 11:31:26 AM
I believe Thailand, Cambodia, and some parts of Laos also use yellow lines.
Title: Re: Yellow vs White central divided lane
Post by: jakeroot on January 22, 2016, 01:39:34 PM
Quote from: realjd on January 22, 2016, 11:16:30 AM
Quote from: NJ on January 22, 2016, 09:23:22 AM
Quote from: realjd on January 22, 2016, 12:36:30 AM
Quote from: vdeane on January 20, 2016, 12:57:57 PM
Ditto.  I have no clue how people in other parts of the world manage with all the lines being white, and that situation in Australia is just plain dangerous.  They should be forced to use something else for the bus lane (perhaps a UN resolution standardizing pavement markings?).

We're in the minority with our yellow markings. All white seems to work well elsewhere. As for Australia, they have a lower road fatality rate than the US both measuring per capita and per km traveled.

Yellow is common in North and South America, few countries in Asia and in Norway. Still many countries though but majority of the world uses all white.
White would have worked fine if opposite traffic was painted with double or solid white lane, not dashed just like two-way road.

The dash length is usually different for center lines vs lane dividers. Commonly, lane dividers are short lines spaced far apart, with center lines being longer with shorter gaps. It's rare everywhere though to find a multi-lane road with a dashed center line. Usually if there are multiple lanes on each side, there is a double line or median in the middle.

Within the UK's urban areas, AFAIK, double-solid white lines are pretty unusual. Most four lane roads have hard central dividers, but some use dashed lines. There does not appear to be a limit on the number of lanes when a dashed central line is used.

(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FIuINJJO.png&hash=09fa76ac8ab4b35478f74d1e7549b351b8377175)
Title: Re: Yellow vs White central divided lane
Post by: Brandon on January 22, 2016, 01:47:24 PM
Quote from: jakeroot on January 22, 2016, 01:39:34 PM
Within the UK's urban areas, AFAIK, double-solid white lines are pretty unusual. Most four lane roads have hard central dividers, but some use dashed lines. There does not appear to be a limit on the number of lanes when a dashed central line is used.

(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FIuINJJO.png&hash=09fa76ac8ab4b35478f74d1e7549b351b8377175)

At a quick glance, and if it had no vehicles, I'd have thought that street was one-way.
Title: Re: Yellow vs White central divided lane
Post by: jakeroot on January 22, 2016, 01:56:19 PM
Quote from: Brandon on January 22, 2016, 01:47:24 PM
Quote from: jakeroot on January 22, 2016, 01:39:34 PM
Within the UK's urban areas, AFAIK, double-solid white lines are pretty unusual. Most four lane roads have hard central dividers, but some use dashed lines. There does not appear to be a limit on the number of lanes when a dashed central line is used.

At a quick glance, and if it had no vehicles, I'd have thought that street was one-way.

The central line is clearly different from the others.
Title: Re: Yellow vs White central divided lane
Post by: Brandon on January 22, 2016, 02:09:16 PM
Quote from: jakeroot on January 22, 2016, 01:56:19 PM
Quote from: Brandon on January 22, 2016, 01:47:24 PM
Quote from: jakeroot on January 22, 2016, 01:39:34 PM
Within the UK's urban areas, AFAIK, double-solid white lines are pretty unusual. Most four lane roads have hard central dividers, but some use dashed lines. There does not appear to be a limit on the number of lanes when a dashed central line is used.

At a quick glance, and if it had no vehicles, I'd have thought that street was one-way.

The central line is clearly different from the others.

Not so much that it provides a clear difference.  I've seen sloppy striping in the US on one-way streets done like that.  Typically when some morons forget to remove the construction dashes.
Title: Re: Yellow vs White central divided lane
Post by: realjd on January 22, 2016, 02:24:23 PM
Quote from: Brandon on January 22, 2016, 01:47:24 PM
Quote from: jakeroot on January 22, 2016, 01:39:34 PM
Within the UK's urban areas, AFAIK, double-solid white lines are pretty unusual. Most four lane roads have hard central dividers, but some use dashed lines. There does not appear to be a limit on the number of lanes when a dashed central line is used.

(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FIuINJJO.png&hash=09fa76ac8ab4b35478f74d1e7549b351b8377175)

At a quick glance, and if it had no vehicles, I'd have thought that street was one-way.

Because you're not used to looking for those visual cues. After driving in the UK for a bit you'd be more used to it. And if you were new to driving over there, you'd be doing more than giving it a quick glance.

In all of these cases, when in doubt, stay left and you'll be fine. As long as you're not going backwards on a one way road (which are very well marked), the left-most lane is always yours.
Title: Re: Yellow vs White central divided lane
Post by: briantroutman on January 22, 2016, 02:49:22 PM
Using white for both the centerline and lane lines makes about as much sense as using red for both brake lights and turn signals.

Americans got centerlines right (yellow), and Europeans got turn signals right (amber).
Title: Re: Yellow vs White central divided lane
Post by: jakeroot on January 22, 2016, 03:10:46 PM
Quote from: briantroutman on January 22, 2016, 02:49:22 PM
Using white for both the centerline and lane lines makes about as much sense as using red for both brake lights and turn signals.

In both situations, they work because the group using them understands how they work. Instead of relying on color alone to delineate lane lines, Europe uses a system of white lines with varying length and width. The drivers there understand how they work, and yellow is simply an additional cautionary measure that most European countries have deemed unnecessary (the vast majority of Europe has much lower traffic fatality numbers than the US).

As I stated before, there is advantages to using white, namely that white is far more reflective than yellow at night.
Title: Re: Yellow vs White central divided lane
Post by: NJ on January 22, 2016, 03:52:04 PM
Quote from: briantroutman on January 22, 2016, 02:49:22 PM
Using white for both the centerline and lane lines makes about as much sense as using red for both brake lights and turn signals.

Americans got centerlines right (yellow), and Europeans got turn signals right (amber).

Only 30% of North American cars have red rear turn signals. I hate red turn signals though.
Title: Re: Yellow vs White central divided lane
Post by: jwolfer on January 22, 2016, 04:13:42 PM
Quote from: briantroutman on January 22, 2016, 02:49:22 PM
Using white for both the centerline and lane lines makes about as much sense as using red for both brake lights and turn signals.

Americans got centerlines right (yellow), and Europeans got turn signals right (amber).
I agree!
Title: Re: Yellow vs White central divided lane
Post by: vdeane on January 23, 2016, 02:57:09 PM
Quote from: Jet380 on January 22, 2016, 04:21:14 AM
Quote from: realjd on January 22, 2016, 12:36:30 AM
As for Australia, they have a lower road fatality rate than the US both measuring per capita and per km traveled.

You can thank our rigid speed and red light camera enforcement for that  :-D
Actually, I'm pretty sure that's due entirely to drivers ed and passing a road test actually meaning something in places of the world that aren't the US.  Here, as long as you can avoid crashing into something while puttering around some subdivision (which is trivially easy), you have a licence to drive anywhere in any situation.  It's a joke.

Red light cameras probably don't contribute much to safety as the vast majority of red light runners are in the first fractions of a second after the light turns red, which is not a safety issue at all due to the all-red phase.  Someone who wants to blow through the middle of the phase probably doesn't care about a $50 ticket or just doesn't pay attention.  Plus a camera at the intersection is pretty much a guarantee that the yellow phase is too short (as the yellow phase is typically shortened such that one can't stop in time while driving the prevailing speed of traffic in order to increase ticket revenue).

Most speed limits are vastly underposted to increase ticket revenue regardless of camera location, increasing the difference in speed between the fastest and slowest cars, making the roads less safe.  "Speed kills" is propaganda for urbanists and shills for the insurance industry (which uses licence points to increase premiums on drivers that don't get into a ton of accidents).

Quote from: jakeroot on January 22, 2016, 03:10:46 PM
Quote from: briantroutman on January 22, 2016, 02:49:22 PM
Using white for both the centerline and lane lines makes about as much sense as using red for both brake lights and turn signals.

In both situations, they work because the group using them understands how they work. Instead of relying on color alone to delineate lane lines, Europe uses a system of white lines with varying length and width. The drivers there understand how they work, and yellow is simply an additional cautionary measure that most European countries have deemed unnecessary (the vast majority of Europe has much lower traffic fatality numbers than the US).

As I stated before, there is advantages to using white, namely that white is far more reflective than yellow at night.
Not on this street in Germany: http://maps.google.com/maps?hl=en&ie=UTF8&ll=53.55421,10.029606&spn=0.003098,0.006899&t=k&z=17&layer=c&cbll=53.554182,10.029483&panoid=t-zfqScoj6YxXfiaLgbdHw&cbp=13,233.51,,0,4.44

There's nothing there to differentiate the two directions of travel.

Quote from: NJ on January 22, 2016, 03:52:04 PM
Quote from: briantroutman on January 22, 2016, 02:49:22 PM
Using white for both the centerline and lane lines makes about as much sense as using red for both brake lights and turn signals.

Americans got centerlines right (yellow), and Europeans got turn signals right (amber).

Only 30% of North American cars have red rear turn signals. I hate red turn signals though.
Alas, it seems like a rather large percentage of the vehicles that do have red turn signals are trucks and trailers that don't have brake lights.
Title: Re: Yellow vs White central divided lane
Post by: jakeroot on January 23, 2016, 04:59:49 PM
Quote from: vdeane on January 23, 2016, 02:57:09 PM
Not on this street in Germany: http://maps.google.com/maps?hl=en&ie=UTF8&ll=53.55421,10.029606&spn=0.003098,0.006899&t=k&z=17&layer=c&cbll=53.554182,10.029483&panoid=t-zfqScoj6YxXfiaLgbdHw&cbp=13,233.51,,0,4.44

There's nothing there to differentiate the two directions of travel.

Except at the intersections prior to that stretch, there are straight arrows in the right-most two lanes (and, just based on the geometry of the intersection, it's pretty obvious that the two right lanes are the through lanes). Now, granted, Germany doesn't seem to be as stringent in how they mark their center line, but I still maintain that most of Europe uses unique central markings (and if they don't, they use other markings such as arrows and signs).

(it's difficult to photograph, but there are straight arrows in both lanes):

(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FyyKmvEb.png&hash=557ba8303e10847aba974b8cc05e21dc37d6877d)
Title: Re: Yellow vs White central divided lane
Post by: mb2001 on August 21, 2019, 09:58:07 AM
Quote from: jakeroot on January 22, 2016, 03:10:46 PM
Quote from: briantroutman on January 22, 2016, 02:49:22 PM
Using white for both the centerline and lane lines makes about as much sense as using red for both brake lights and turn signals.

In both situations, they work because the group using them understands how they work. Instead of relying on color alone to delineate lane lines, Europe uses a system of white lines with varying length and width. The drivers there understand how they work, and yellow is simply an additional cautionary measure that most European countries have deemed unnecessary (the vast majority of Europe has much lower traffic fatality numbers than the US).

As I stated before, there is advantages to using white, namely that white is far more reflective than yellow at night.

I agree, however I don't see a reason why using a separate color is a bad idea just to make it extra clear that if you cross this line you'll hit oncoming traffic. While white is more reflective then yellow, the technology of the lines has become much more advanced since these standards were put in place back in the "˜60s and "˜70s and most major roads in the US have extra-reflective centerlines.

Also, I think the fact that European roads tend to have safer geometric layouts and the fact that it is much much harder to get a license in Europe lead to the lower accident rate, not the lines.
Title: Re: Yellow vs White central divided lane
Post by: jakeroot on August 22, 2019, 02:38:19 PM
Quote from: mb2001 on August 21, 2019, 09:58:07 AM
I agree, however I don't see a reason why using a separate color is a bad idea just to make it extra clear that if you cross this line you'll hit oncoming traffic.

Because they make it extra clear using other things: arrows at junctions, slightly different markings for the center line (usually thicker lines and/or longer lines), or lane-use arrows on signage. Sometimes, the arrows in the other direction clearly delineate those lanes as being for the other direction of traffic (example from the UK (https://goo.gl/maps/qg5WWYQC7YXGHHVD6)). Would a yellow center line make it extra clear? Perhaps from an American perspective. But from the average European perspective, some might wonder why you weren't able to figure it out based on other evidence. The Vienna Convention seems more reliant on driver assumptions than the MUTCD (although this is just my perspective...an actual European should chime in if possible).

Yes, I am aware that some European countries and many other countries around the world use yellow center lines. What I don't know is whether they adopted it because of changing American standards, and an interest in simply "going along" with our choices, or if they had separate studies done that suggested yellow was a safer option.
Title: Re: Yellow vs White central divided lane
Post by: kphoger on August 23, 2019, 02:58:56 PM
In Mexico, you can still find highways that have yellow edge lines and a white center line.  I've personally driven on one or two of them.  From what I've gathered on GSV, though, they are being converted to the standard color scheme as repaving projects come along.

Here is an example (https://goo.gl/maps/2h78mx7aPqAJvDgW7) of one to look at.  At some point between August 2013 and September 2014, the colors were reversed.