Traffic signal

[steviep24]

This is interesting.

https://www.google.com/maps/@40.609146,-73.9219648,3a,75y,77.28h,98.45t/data=!3m6!1e1!3m4!1s_bXQCMSPWGE59FpCRF7RCA!2e0!7i16384!8i8192

The two section signals serve a driveway for a shopping center.

[SignBridge]

I've seen a similar two-section signal in Nassau County on Old Country Rd. in Mineola. It serves the driveway of a condo/apartment house parking garage. Right across the street from the county executive building.

[steviep24]

Found this on the Forgotten NY website. https://forgotten-ny.com/2018/05/classic-stoplights/



That signal is no longer there.

[TEG24601]

Just got back from Las Vegas, and found another oddity.  I was also confused by the lane guide sign.

[DaBigE]

Just got back from Las Vegas, and found another oddity.  I was also confused by the lane guide sign.

Since the right lane doesn't have an 'ONLY' with it, left turns must be a common movement, but other movements (right?) are allowed. My guess is the bottom portion of the signal is a green left and right arrow.

[roadfro]

Just got back from Las Vegas, and found another oddity.  I was also confused by the lane guide sign.

Where was this?

[Big John]

The bottom part of the signal could also be a green left arrow and a green orb.

[jakeroot]

Just got back from Las Vegas, and found another oddity.  I was also confused by the lane guide sign.

Where was this?

Found it ... exit from the Sands Expo Center/Venetian/Palazzo loading bays: https://goo.gl/maps/fTAA2s6FH942KaQr6

The right lane can go either left or right. In WA, similar signs would say "OK" below the arrow.

The bottom part of the signal could also be a green left arrow and a green orb.

Based on the whole setup (visible in the link above), this appears to be the case. The green orb would compliment the through signal on the right mast.

[jakeroot]

A very Canadian-looking signal along Olympic Hwy (WA-3) east of Aberdeen. The backs are painted green...?

https://goo.gl/maps/XJkcdZnhDc6dK7pb8

[RestrictOnTheHanger]

Speaking of Canada, I was in Montreal on a trip recently and observed some oddities compared to US signalling.

There were a lot of signals with leading pedestrian intervals. Most were RYG with a green up arrow on the bottom. For the first 5 seconds of the cycle, only the arrow would light up, supposedly prohibiting turns. Then the arrow went out and was replaced with the usual green ball.

Example (skip to 50 seconds) https://youtu.be/DrvL3EURCY8

Compared to an equivalent NYC LPI setup using affirmative red flashing yellow arrows (safer IMO)
https://youtu.be/nCvfPUnpaww

Next, there were flashing green balls at some intersections that I think mean protected lefts allowed (most I saw were lagging). Example of a leading flashing green at 18 seconds https://youtu.be/MAqB1z1epIY

Finally, all pedestrian timers have countdowns that always show zero simultaneously with the solid red hand.

What other signalling oddities exist in Canada?

[jakeroot]

What other signalling oddities exist in Canada?

Primary distinctions in BC:

* flashing green orb = pedestrian-activated crossing (not protected turn, as in Ontario)
* flashing green arrow = protected phase of a protective/permissive turn
* in some jurisdictions (primarily Richmond), the yellow orb and yellow arrow of a protected-only turn are active simultaneously (the green arrow is bi-modal at these)

Related to the last one, Canada (except Quebec) is holding out on the all-arrow protected left turn display, continuing to opt for circular indications with "LEFT TURN SIGNAL" signs. Not sure why.

[roadfro]

Just got back from Las Vegas, and found another oddity.  I was also confused by the lane guide sign.

Where was this?

Found it ... exit from the Sands Expo Center/Venetian/Palazzo loading bays: https://goo.gl/maps/fTAA2s6FH942KaQr6

The right lane can go either left or right. In WA, similar signs would say "OK" below the arrow.

Ah okay. I'm guessing there's not a whole lot of traffic that turns right here, but there's no reason to not use a proper lane assignment sign–that second arrow should be a split left/right instead.

[plain]

There is now an intersection with T-signals here in Richmond, on Leigh St at Lombardy St. These are fairly new as the last time I went through this intersection was February of this year and they weren't there.

Images from GSV



SM-S820L

[SignBridge]

I really don't get the purpose of the double-red. The installation would be perfectly fine with the usual single-red.

[plain]

I really don't get the purpose of the double-red. The installation would be perfectly fine with the usual single-red.

I actually agree with you. I guess the city feels the need for an extra red here (it is a pretty dangerous intersection).

[roadman65]

This photo is odd for Texas. It has the usual horizontal mounted signal heads as Texas mostly uses but the one facing FM 559 is vertical.  It appears to be a left turn signal, however Texas has no issue elsewhere using the horizontal mount for left turn signals.

In NJ, where I grew up, this is quite common as you used to see many places both installations were used in the same intersection, but here I think not.

https://www.flickr.com/photos/54480415@N08/48683106786/sizes/z/

[paulthemapguy]

Some places want to have a backup red bulb in case the other one dies.  In Illinois, it's required for every signal indication to have a duplicate, whether red, yellow, or green--but at other agencies, some signals will only have a duplicate of the red indication built.  If I were to choose any signal indication to duplicate, it makes the most sense to choose the red one, because it's the most important.

[roadman65]

Some places want to have a backup red bulb in case the other one dies.  In Illinois, it's required for every signal indication to have a duplicate, whether red, yellow, or green--but at other agencies, some signals will only have a duplicate of the red indication built.  If I were to choose any signal indication to duplicate, it makes the most sense to choose the red one, because it's the most important.

SC is copying that one that Eastern Texas uses.  However look at this one https://www.flickr.com/photos/54480415@N08/48688036163/in/dateposted-public/
and this:

https://www.flickr.com/photos/54480415@N08/48635711223/in/dateposted-public/

Both have the extra lens and are horizontal.  If that is your point Paul.

[Ian]

Just got back from Las Vegas, and found another oddity.

A little late of a reply, but you'll find signals like this commonly around Pennsylvania, Delaware, and New Jersey.

[SignBridge]

I've never seen horizontal signals in Pennsylvania. Lot's in Northern New Jersey though. Don't know about Delaware.

[jakeroot]

I was alerted to this signal thanks to US 89 (see here).

At the intersection of Arsenal Road/Goff Blvd/Isleta Blvd in Albuquerque, the southbound left turn is a permissive left "yield on green" maneuver. This is nothing special, but the oncoming right turn (northbound), which goes through a slip lane, is a signal.

Normally at these setups, the turns would be protected only, so the right turn could be signalized with a green arrow. But because of the permissive left, the double right stays red during the through phase, so that left-turning traffic would have the right-of-way. Genius? Perhaps. Unusual for sure. The green arrow is only active during the westbound-to-southbound left turn.

Google Maps: https://goo.gl/maps/2ctUEdxmCPRPDQhh7

[ErmineNotyours]

A very Canadian-looking signal along Olympic Hwy (WA-3) east of Aberdeen. The backs are painted green...?

https://goo.gl/maps/XJkcdZnhDc6dK7pb8

Another Canadian-looking signal in Renton.

[jeffandnicole]

I've never seen horizontal signals in Pennsylvania. Lot's in Northern New Jersey though. Don't know about Delaware.

https://maps.app.goo.gl/K3VwCAZ5pxeWHvbL8

[TEG24601]

Just got back from Las Vegas, and found another oddity.

A little late of a reply, but you'll find signals like this commonly around Pennsylvania, Delaware, and New Jersey.

But it appears in those cases to be similar to doghouse light, where the two greens can be in separate phases.  I had a post a few months ago about a similar WSDOT installation that was similar to the one behind the Venetian.  Except, there were no separate phases, and I assume there aren't separate phases for the the Venetian either, making a single orb more appropriate in both instances.

[Roadsguy]

I've never seen horizontal signals in Pennsylvania. Lot's in Northern New Jersey though. Don't know about Delaware.

One intersection in PA that jumps to mind with horizontal signals is Eisenhower Blvd. and Paxton St. near the Eisenhower Interchange in the Harrisburg area.