AARoads Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

New rules to ensure post quality. See this thread for details.

 91 
 on: June 02, 2023, 06:37:36 PM 
Started by Tom89t - Last post by mrsman
I got to see Montréal's way of displaying an LPI (or LTI, Leading Thru Interval) when I went to Montréal two weeks ago in person and it reminded me of another signal sequence that is very similar around the Los Angeles area for LTIs.

This is for a permissive and/or permissive/protected setup. For the LTI:
- In Montreal, the signal starts with a upward-facing green arrow when "WALK" is displayed. It changes to a circular green after the LTI ends. There is a 5 and 6-section version of this signal, with the indications being (R-Y-G-UfGA-LtYA-LtFGA). LtYA is omitted in the 5 section version and it also could have a transit bypass signal as well on the top instead of LFGA. The ones with left turn phasing were all lagging left.

- In Los Angeles (circular red-red arrow signal), the signal starts with both a red arrow AND circular green when "WALK" is displayed. It changes to a circular green after the LTI ends. (The LA setup shown here was changed to a fully protected setup with seperate signals)

Obviously, having separate signals (and dedicated turn lanes) for each movement with FYA works a lot better for signalling this operation. Besides this, I'm curious to see which one is better for signalling this operation: Montréal or Los Angeles?

The LA one has something the Montreal one lacks--an explicit indication against left turns while straight is allowed. Something about the straight green arrow but nothing at all about lefts makes me worry that people might think either the signal is "broken" and lefts are allowed but dark, or that there is no signal phase at all relating to left turns (go whenever).  The red arrow seems good to say "we didn't forget left turns--don't do it right now."

I agree.  From a US perspective, we prefer to see a NO indication as opposed to understanding that a straight arrow implies no turns.  In the US, the Montreal signal is a no-go.  I don't know how the Montreal signal is interpreted in Canada.  It seems that Quebec allows for right on red, except on the island of Montreal.

And it seems like its common there.

Take a look at this sign.

https://www.google.com/maps/@45.5785795,-73.5600436,3a,75y,224.68h,98.99t/data=!3m6!1e1!3m4!1sJboCjJvi8r4o3peU5iRFCg!2e0!7i16384!8i8192?hl=en&entry=ttu

It is striaght and right in a green circle.  Can you turn left here?  Since only straight and right are in the green circle, left turns are prohibited.  In the US, the would have a no left turn sign instead.

- In Los Angeles (circular red-red arrow signal), the signal starts with both a red arrow AND circular green when "WALK" is displayed. It changes to a circular green after the LTI ends. (The LA setup shown here was changed to a fully protected setup with seperate signals)

That setup is identical to this current LPI in Spokane, WA. Red arrow at the beginning during the LPI, before being extinguished and only a green orb is displayed.

Unfortunately, I cannot find a GSV showing a green orb + red arrow. And, investigating GSV for a bit, there is some evidence that the LPI may not always be active: these cars are setting off at a freshly green light, but there is only green orbs, and the "Don't Walk" sign is displayed.

And that is a good thing.  As there are pedestrian activation buttons, the LPI should only be operational when the WALK signal is operational.  If no pedestrian pushes the button, there is no need for an LPI.

 92 
 on: June 02, 2023, 06:34:54 PM 
Started by Mdcastle - Last post by froggie
Didn't intend to imply that they didn't exist (just that I had never seen any myself), but I'm just going to show myself out before I make myself look any dumber.

That they exist is one thing.  Whether they're signed (and thus visible in the field) or not is another story.

My initial reaction was that there may not be many in St. Louis County because the county seems to throw a county route shield on practically every cowpath.

 93 
 on: June 02, 2023, 06:33:37 PM 
Started by mass_citizen - Last post by CoreySamson
I'm sorry, but what the heck is an "oil iggie"? And if it's misspelled, what the heck is it talking about?

https://goo.gl/maps/W8cnMVqxLjErbQP68

 94 
 on: June 02, 2023, 06:20:46 PM 
Started by Roadgeekteen - Last post by Sapphuby
45 mph?

 95 
 on: June 02, 2023, 06:18:14 PM 
Started by geek11111 - Last post by CovalenceSTU
The ramp from EB 76 to NB 25 in Denver, is long enough to where it SHOULD have a number.. the thing has its own milemarkers.
The marker in question:


I like that they put the state name on the shields even though they can't possibly be read from a car :)

 96 
 on: June 02, 2023, 06:17:02 PM 
Started by golden eagle - Last post by skluth
She and HBO put together an excellent bio on her life. I highly recommend it. Her life with Ike was even more a living hell than I had previously heard. So glad she had all the success she had. An amazing talent.

 97 
 on: June 02, 2023, 06:12:00 PM 
Started by Mdcastle - Last post by J N Winkler
Didn't intend to imply that they didn't exist (just that I had never seen any myself), but I'm just going to show myself out before I make myself look any dumber.

Don't feel bad--I found UT roads in St. Louis County only because the plans for the SP 8821-353 sign replacement furnished a cheat sheet.  MnDOT signing contracts with control sections of 88XX tend to be districtwide jobs, but in this case, the focus route is US 53 in St. Louis and Koochiching Counties.  In many cases, perhaps most, UT roads will be signed far more conspicuously from US 53 than is currently the case.

Here's an example:



Google Maps not only fails to show Jacobs Road as UT 8146; it also misleadingly labels it as CR 519.  StreetView imagery (the latest of which dates from November 2015) shows a UT 8146 shield on Jacobs Road itself but no existing signing on US 53 referencing a UT route.

I don't know the current status of construction on SP 8821-353.

 98 
 on: June 02, 2023, 05:44:54 PM 
Started by wdcrft63 - Last post by wdcrft63
NCDOT has awarded a contract for rehabilitation of I-40 between the I-26 and US 25 interchanges south of Asheville. This section includes the bridges over the French Broad River. Lane closures are to be “mostly” at night.
https://www.ncdot.gov/news/press-releases/Pages/2023/2023-06-02-comprehensive-contract-i-40-buncombe.aspx

 99 
 on: June 02, 2023, 05:25:27 PM 
Started by Amaury - Last post by Bruce
The new expressway (not a freeway, and only an extension of the bypass) between Touchet and Walla Walla will open later today.

https://www.union-bulletin.com/news/local/governments/new-stretch-of-us-12-between-walla-walla-tri-cities-to-open-this-afternoon/article_53791ea8-0167-11ee-9967-c3c6fc73696e.html

It looks like the west end of this new expressway is the third alignment for US-12, with Byrnes Rd being the original one along the railroad tracks.

From the USGS topos, it doesn't seem that Byrnes Road was ever part of US 12. Maybe part of the predecessor IEH, but definitely not US 12.

 100 
 on: June 02, 2023, 05:24:51 PM 
Started by Desert Man - Last post by Ted$8roadFan
Cloudy and 81, with thunderstorms approaching.


Opinions expressed here on belong solely to the poster and do not represent or reflect the opinions or beliefs of AARoads, its creators and/or associates.