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National Boards => General Highway Talk => Traffic Control => Topic started by: Mergingtraffic on August 11, 2013, 11:11:40 PM

Title: Keep Left
Post by: Mergingtraffic on August 11, 2013, 11:11:40 PM
Any "Keep Left" signs in your area?

This is in Norwalk, CT :pan:

https://www.google.com/maps?q=west+ave+norwalk,+ct&hl=en&ll=41.117803,-73.408196&spn=0.000692,0.001116&sll=40.993826,-73.674834&sspn=0.001395,0.002232&t=h&hnear=West+Ave,+Norwalk,+Connecticut&z=20&layer=c&cbll=41.117904,-73.408158&panoid=_R-TGb0RYwzkYjSInBoZqg&cbp=12,9.75,,0,12.05
Title: Re: Keep Left
Post by: NE2 on August 11, 2013, 11:38:23 PM
In before SPUIs.
Title: Re: Keep Left
Post by: PurdueBill on August 12, 2013, 12:15:49 AM
One that came to mind from Chicago since I drove by it just recently (https://www.google.com/maps?hl=en&ll=41.901934,-87.624164&spn=0.006396,0.009645&t=h&z=17&layer=c&cbll=41.902035,-87.624156&panoid=MUoiaVyAKKFLiUf71ZUoUQ&cbp=12,333.94,,0,18.07) despite it probably being there a long time.
Title: Re: Keep Left
Post by: kj3400 on August 12, 2013, 12:53:47 AM
Quote from: NE2 on August 11, 2013, 11:38:23 PM
In before SPUIs.

In before DDIs.
Title: Re: Keep Left
Post by: 1995hoo on August 12, 2013, 07:48:25 AM
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi31.photobucket.com%2Falbums%2Fc378%2F1995hoo%2FRoad%2520sign%2520pictures%2FMiscellaneousNovember2012113.jpg&hash=89e8a4c59afe26edb49996e10c7542ee48437dfb)
Title: Re: Keep Left
Post by: sammi on August 12, 2013, 10:31:46 AM
Quote from: 1995hoo on August 12, 2013, 07:48:25 AM
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi31.photobucket.com%2Falbums%2Fc378%2F1995hoo%2FRoad%2520sign%2520pictures%2FMiscellaneousNovember2012113.jpg&hash=89e8a4c59afe26edb49996e10c7542ee48437dfb)

I don't even.

Also, isn't "ONE WAY" a white arrow on a black background?


(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fwww.ricesigns.com%2Freal_pictures%2Fone_way_signs.jpg&hash=ce5ea215b14c58001d46acbeaf69f46713992769)
Title: Re: Keep Left
Post by: PHLBOS on August 12, 2013, 11:15:27 AM
Quote from: sammi on August 12, 2013, 10:31:46 AMAlso, isn't "ONE WAY" a white arrow on a black background?


(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fwww.ricesigns.com%2Freal_pictures%2Fone_way_signs.jpg&hash=ce5ea215b14c58001d46acbeaf69f46713992769)
It can be either or.  MUTCD R6-1 is the one you posted, the other version (in 1995hoo's posted photo) is MUTCD R6-2.
Title: Re: Keep Left
Post by: Ian on August 12, 2013, 03:36:59 PM
Delaware has a lot of keep left signs at intersections like this (http://goo.gl/maps/lDDDu). Here's one at the intersection of DE 4 and DE 7 in Stanton.

(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Ffarm6.staticflickr.com%2F5545%2F9473798519_b2b9736a6f_z.jpg&hash=fd9913d29a23adee0a487b17e5bd9b1bb45615b9)
Title: Re: Keep Left
Post by: conekicker on August 12, 2013, 03:55:47 PM
Around me they are like Zulus - thousands of them  :D
Title: Re: Keep Left
Post by: 1995hoo on August 12, 2013, 04:07:53 PM
The eastern end of the Pont Victoria in Montreal has some of a more conventional design than the screwed-up District of Columbia sign I posted earlier.

http://goo.gl/maps/ql5bv
Title: Re: Keep Left
Post by: Big John on August 12, 2013, 04:10:51 PM
I actually prefer a worded keep left sign with a left pointed arrow.  The diametric sign looks too much like the opposing keep right sign and the less common sign could be confused for the other.
Title: Re: Keep Left
Post by: wxfree on August 12, 2013, 07:02:27 PM
Quote from: Big John on August 12, 2013, 04:10:51 PM
I actually prefer a worded keep left sign with a left pointed arrow.  The diametric sign looks too much like the opposing keep right sign and the less common sign could be confused for the other.

I've made that exact mistake here
https://maps.google.com/maps?hl=en&ll=32.579953,-97.304835&spn=0.005732,0.011362&t=m&z=17&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0 (https://maps.google.com/maps?hl=en&ll=32.579953,-97.304835&spn=0.005732,0.011362&t=m&z=17&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0)

It was at night and I was a new driver unfamiliar with the area at the time.  I saw the sign and thought it was like every other sign I'd ever seen that looked like that.
Title: Re: Keep Left
Post by: countysigns on August 12, 2013, 10:24:39 PM
Corner of Berdan Avenue and Haverhill Drive in West Toledo - lots of concrete islands at this intersection.

https://maps.google.com/?ll=41.689018,-83.561819&spn=0.002183,0.005284&t=m&z=18&layer=c&cbll=41.689017,-83.562843&panoid=lnigGxtQWkF1C3wf65NXMQ&cbp=12,79.9,,0,4.81
Title: Re: Keep Left
Post by: PurdueBill on August 12, 2013, 11:34:45 PM
Quote from: wxfree on August 12, 2013, 07:02:27 PM
Quote from: Big John on August 12, 2013, 04:10:51 PM
I actually prefer a worded keep left sign with a left pointed arrow.  The diametric sign looks too much like the opposing keep right sign and the less common sign could be confused for the other.

I've made that exact mistake here
https://maps.google.com/maps?hl=en&ll=32.579953,-97.304835&spn=0.005732,0.011362&t=m&z=17&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0 (https://maps.google.com/maps?hl=en&ll=32.579953,-97.304835&spn=0.005732,0.011362&t=m&z=17&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0)

It was at night and I was a new driver unfamiliar with the area at the time.  I saw the sign and thought it was like every other sign I'd ever seen that looked like that.

Isn't that location more appropriately set up with a double-downward arrow diamond sign (W12-1), or at least some sort of object marker (common although possibly not the intended use of such markers)?  The KEEP LEFT sign suggests that it's not legal to exit right of the sign, and that the roadway coming out there is one-way oncoming.
Title: Re: Keep Left
Post by: Signal on August 13, 2013, 11:38:21 AM
Quote from: PurdueBill on August 12, 2013, 11:34:45 PM
Quote from: wxfree on August 12, 2013, 07:02:27 PM
Quote from: Big John on August 12, 2013, 04:10:51 PM
I actually prefer a worded keep left sign with a left pointed arrow.  The diametric sign looks too much like the opposing keep right sign and the less common sign could be confused for the other.

I've made that exact mistake here
https://maps.google.com/maps?hl=en&ll=32.579953,-97.304835&spn=0.005732,0.011362&t=m&z=17&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0 (https://maps.google.com/maps?hl=en&ll=32.579953,-97.304835&spn=0.005732,0.011362&t=m&z=17&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0)

It was at night and I was a new driver unfamiliar with the area at the time.  I saw the sign and thought it was like every other sign I'd ever seen that looked like that.

Isn't that location more appropriately set up with a double-downward arrow diamond sign (W12-1), or at least some sort of object marker (common although possibly not the intended use of such markers)?  The KEEP LEFT sign suggests that it's not legal to exit right of the sign, and that the roadway coming out there is one-way oncoming.

Exactly what I thought. That implies that your direction of travel only goes left, when it really goes both ways.

QuoteCorner of Berdan Avenue and Haverhill Drive in West Toledo - lots of concrete islands at this intersection.

https://maps.google.com/?ll=41.689018,-83.561819&spn=0.002183,0.005284&t=m&z=18&layer=c&cbll=41.689017,-83.562843&panoid=lnigGxtQWkF1C3wf65NXMQ&cbp=12,79.9,,0,4.81

I don't think that is used right either. I think it should just use some sort of left arrow, because that looks like it's telling you to go straight.
Title: Re: Keep Left
Post by: wxfree on August 13, 2013, 01:03:04 PM
Quote from: PurdueBill on August 12, 2013, 11:34:45 PM
Quote from: wxfree on August 12, 2013, 07:02:27 PM
Quote from: Big John on August 12, 2013, 04:10:51 PM
I actually prefer a worded keep left sign with a left pointed arrow.  The diametric sign looks too much like the opposing keep right sign and the less common sign could be confused for the other.

I've made that exact mistake here
https://maps.google.com/maps?hl=en&ll=32.579953,-97.304835&spn=0.005732,0.011362&t=m&z=17&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0 (https://maps.google.com/maps?hl=en&ll=32.579953,-97.304835&spn=0.005732,0.011362&t=m&z=17&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0)

It was at night and I was a new driver unfamiliar with the area at the time.  I saw the sign and thought it was like every other sign I'd ever seen that looked like that.

Isn't that location more appropriately set up with a double-downward arrow diamond sign (W12-1), or at least some sort of object marker (common although possibly not the intended use of such markers)?  The KEEP LEFT sign suggests that it's not legal to exit right of the sign, and that the roadway coming out there is one-way oncoming.

They signed it that way because through traffic goes left.  The right route ends at a one-way frontage road and requires a 3-mile detour to get back on track.  I always thought there should be a "Farm Road 1187" sign with a left upward arrow.  That would make it clear that through traffic goes left but a maneuver to the right is permitted.  It would draw attention to the details, rather than letting some people automatically see a "keep right" sign.
Title: Re: Keep Left
Post by: jeffandnicole on August 13, 2013, 01:21:12 PM
Quote from: wxfree on August 13, 2013, 01:03:04 PM
Quote from: PurdueBill on August 12, 2013, 11:34:45 PM
Quote from: wxfree on August 12, 2013, 07:02:27 PM
Quote from: Big John on August 12, 2013, 04:10:51 PM
I actually prefer a worded keep left sign with a left pointed arrow.  The diametric sign looks too much like the opposing keep right sign and the less common sign could be confused for the other.

I've made that exact mistake here
https://maps.google.com/maps?hl=en&ll=32.579953,-97.304835&spn=0.005732,0.011362&t=m&z=17&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0 (https://maps.google.com/maps?hl=en&ll=32.579953,-97.304835&spn=0.005732,0.011362&t=m&z=17&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0)

It was at night and I was a new driver unfamiliar with the area at the time.  I saw the sign and thought it was like every other sign I'd ever seen that looked like that.

Isn't that location more appropriately set up with a double-downward arrow diamond sign (W12-1), or at least some sort of object marker (common although possibly not the intended use of such markers)?  The KEEP LEFT sign suggests that it's not legal to exit right of the sign, and that the roadway coming out there is one-way oncoming.

They signed it that way because through traffic goes left.  The right route ends at a one-way frontage road and requires a 3-mile detour to get back on track.  I always thought there should be a "Farm Road 1187" sign with a left upward arrow.  That would make it clear that through traffic goes left but a maneuver to the right is permitted.  It would draw attention to the details, rather than letting some people automatically see a "keep right" sign.

Black on white = Regulatory. Since traffic has the option of taking either fork, the sign isn't valid.  Technically, based on the sign, one could receive a ticket for taking the right fork.

An intersection near me with the same type issue (main thruway curves to the left) has a Combo Curve/Intersection Sign (W1-10) approaching the intersection, with the Double Arrow W12-1 warning sign and some chevron arrows at the split (Here's the Google Maps Link: http://goo.gl/maps/rUzA2 .  The signs have been upgraded since with larger, newer signs).
Title: Re: Keep Left
Post by: Ned Weasel on August 13, 2013, 08:43:34 PM
Improper usage: https://maps.google.com/?ll=38.941814,-94.66739&spn=0.001085,0.002642&t=m&z=19&layer=c&cbll=38.941878,-94.667389&panoid=Hl2198RygBcPH0xs6q_2AA&cbp=12,14.94,,0,-0.18
Title: Re: Keep Left
Post by: Brian556 on August 14, 2013, 12:59:38 AM
https://maps.google.com/maps?hl=en&ll=32.579951,-97.307037&spn=0.000018,0.012521&t=m&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0&z=17 (https://maps.google.com/maps?hl=en&ll=32.579951,-97.307037&spn=0.000018,0.012521&t=m&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0&z=17)
This one on FM 1187 is just a ridiculous error.

In Leesburg FL, a double arrow (for T Intersections) is used at a split
https://maps.google.com/maps?hl=en&ll=28.817699,-81.885309&spn=0.000038,0.025041&t=h&layer=c&cbll=28.817788,-81.885378&panoid=2DSjBMmZFwJ_PW_3V9ZomA&cbp=12,162.13,,0,0&z=16 (https://maps.google.com/maps?hl=en&ll=28.817699,-81.885309&spn=0.000038,0.025041&t=h&layer=c&cbll=28.817788,-81.885378&panoid=2DSjBMmZFwJ_PW_3V9ZomA&cbp=12,162.13,,0,0&z=16)

Here's one in Denton, Tx on Morse St that uses a KEEP LEFT and a double arrow.
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi1209.photobucket.com%2Falbums%2Fcc395%2FBrian5561%2F6511b006_zps8b207c48.jpg&hash=8d81497b8d4727f7e38c63bfe3ae9e9343372164) (http://s1209.photobucket.com/user/Brian5561/media/6511b006_zps8b207c48.jpg.html)

An even worse error used to exist in Dallas on the I-30 WB Frontage Rd at the main Post Office driveway. There was a large KEEP RIGHT symbol sign incorrectly directing motorists off the frontage road and into the driveway. This area has been reconfigured and the original situation no longer exists to show y'all on streetview
Title: Re: Keep Left
Post by: Ned Weasel on August 14, 2013, 08:34:03 PM
Quote from: Brian556 on August 14, 2013, 12:59:38 AM
https://maps.google.com/maps?hl=en&ll=32.579951,-97.307037&spn=0.000018,0.012521&t=m&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0&z=17 (https://maps.google.com/maps?hl=en&ll=32.579951,-97.307037&spn=0.000018,0.012521&t=m&layer=c&cbll=32.579951,-97.307037&panoid=2IkZWFL4rSEB4D_nq5iyvQ&cbp=12,271.34,,0,0&z=17)
This one on FM 1187 is just a ridiculous error.

In Leesburg FL, a double arrow (for T Intersections) is used at a split
https://maps.google.com/maps?hl=en&ll=28.817699,-81.885309&spn=0.000038,0.025041&t=h&layer=c&cbll=28.817788,-81.885378&panoid=2DSjBMmZFwJ_PW_3V9ZomA&cbp=12,162.13,,0,0&z=16 (https://maps.google.com/maps?hl=en&ll=28.817699,-81.885309&spn=0.000038,0.025041&t=h&layer=c&cbll=28.817788,-81.885378&panoid=2DSjBMmZFwJ_PW_3V9ZomA&cbp=12,162.13,,0,0&z=16)

I'm pretty sure those two examples should use the diamond-shaped "Double Arrow Sign" (MUTCD W12-1). 
Title: Re: Keep Left
Post by: Alps on August 14, 2013, 11:44:24 PM
www.alpsroads.net/roads/nj/cr_753

Scroll just past halfway down, and read the caption.
Title: Re: Keep Left
Post by: jakeroot on March 17, 2014, 12:46:43 PM
Found this thread AND I found another one in Seattle. Strange situation because you seem to be driving on the opposite side of the road (for a very short time, granted). It's the result of an exit ramp from 99 south.

Battery @ Western Ave (http://goo.gl/2iKP6g)

(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FiDn8afi.png&hash=0d9994a746bc0051c77202b6f04acafec538bee3)
Title: Re: Keep Left
Post by: Milepost61 on March 22, 2014, 11:48:19 PM
Several freeway ramps around here have them for bus pad pullouts:
https://www.google.com/maps/@39.857074,-105.053218,3a,75y,358.13h,78.17t/data=!3m4!1e1!3m2!1spGRmTvImXX0I3YJkZwExAA!2e0
Title: Re: Keep Left
Post by: empirestate on March 23, 2014, 12:44:39 PM
Title: Re: Keep Left
Post by: roadman65 on March 23, 2014, 12:48:16 PM
I would imagine that we are seeing these quite frequently at DDI set ups.
Title: Re: Keep Left
Post by: roadman on March 26, 2014, 05:43:49 PM
Quote from: PHLBOS on August 12, 2013, 11:15:27 AM
Quote from: sammi on August 12, 2013, 10:31:46 AMAlso, isn't "ONE WAY" a white arrow on a black background?


(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fwww.ricesigns.com%2Freal_pictures%2Fone_way_signs.jpg&hash=ce5ea215b14c58001d46acbeaf69f46713992769)
It can be either or.  MUTCD R6-1 is the one you posted, the other version (in 1995hoo's posted photo) is MUTCD R6-2.
Some states (Massachusetts among them) have adopted a design policy whereby the R6-1 sign is used where the direction of the one way street is coming into an intersection, but the R6-2 sign is used where the direction of the one way street is going away from the intersection.
Title: Re: Keep Left
Post by: 6a on March 26, 2014, 05:53:11 PM

Quote from: roadman65 on March 23, 2014, 12:48:16 PM
I would imagine that we are seeing these quite frequently at DDI set ups.

Yep, we have those at the I-270/Roberts DDI.