[PRCo] Signal styles

Sun Aug 7 14:39:19 EDT 2016

Montreal has some otherwise-ordinary traffic signals with a vertical
bar added.  These allow buses to "jump the light" by giving them a
couple of seconds before other traffic starts.

https://www.google.ca/maps/@45.5111162,-73.5772147,3a,75y,129.91h,88.51t/data=!3m6!1e1!3m4!1sTTtIqMcMFc3GClX2XX6vBg!2e0!7i13312!8i6656

This one is on av. du Parc at Léo-Pariseau, where the vertical bar is
especially useful because the bus lane becomes a parking lane, and the
buses would otherwise get stuck trying to merge.

There are some explanatory signs in French ("Priority signal bus taxis
/ Right lane only") but the key is that the red lights stay on during
the advance phase.

-j.

On 07.08.2016, Daria Phoebe Brashear via Pittsburgh-railways
<pittsburgh-railways at mailman.dementix.org> wrote:
> I visited Portland and Seattle last month (also southeastern PA, but not
> Philly) and saw a large number of those international signals. Found myself
> in the position of explaining them while standing on a corner in Portland,
> in fact. Seattle's LINK now goes to the airport, by the way, and they have
> a streetcar as well which was giving free rides on the weekend I was there.
>
> As an aside, hello from Somerville, Massachusetts, where I live as of 2
> days ago.
>
>
> On Sun, Aug 7, 2016 at 9:19 AM, Edward H. Lybarger via Pittsburgh-railways <
> pittsburgh-railways at mailman.dementix.org> wrote:
>
>> I asked Chris Walker at Port Authority for clarification.  He sent the
>> following:
>>
>> The "International" signals govern rail traffic in two locations - the
>> Overbrook line merge with the South Busway at South Hills Junction, and
>> the
>> grade crossing with Castle Shannon Boulevard. These display a horizontal
>> bar for stop, and a vertical bar for proceed. Both are tied in with the
>> cycles of regular, three-aspect traffic signals at their respective
>> locations. They're designed to provide the transit operator with
>> instructions while not confusing motorists at road/rail intersections.
>>
>> These signals are not found on the Beechview line - they were strictly a
>> Stage II thing.
>>
>> I think the "clear on top" signals in question are the regular lineside
>> spacing signals on the Red Line. With a couple exceptions, these are not
>> found on Overbrook, as Blue Line cars run on cab signaling between Willow
>> and South Hills Junction.
>>
>> Hope that helps.
>>
>> Chris
>>
>> Ed
>>
>> -----Original Message-----
>> From: Pittsburgh-railways [mailto:pittsburgh-railways-
>> bounces at mailman.dementix.org] On Behalf Of James Keener via
>> Pittsburgh-railways
>> Sent: Saturday, August 06, 2016 10:22 AM
>> To: George W. Gula; Western PA Trolley discussion; George W. Gula via
>> Pittsburgh-railways; Herb Brannon
>> Subject: Re: [PRCo] Signal styles
>>
>> The red and blue lines seem to have a majority of the upsidedown traffic
>> signal style. The semaphore-lights-in-a-traffic-signal-body seem
>> interspersed through. One driver called the later "international style"
>> bit
>> I wasn't able to find more info.
>>
>> On August 6, 2016 10:09:02 AM EDT, "George W. Gula via
>> Pittsburgh-railways" <pittsburgh-railways at mailman.dementix.org> wrote:
>> >While I¹m not sure just why they are different, I can hazard a guess.
>> >The
>> >Beechview (Red)Line opened in 1987 and the the Blue line opened in
>> >2002.
>> >That¹s abut 15 years difference and both the available technology and
>> >the Bidders changed during that period. PAT wrote their specs and the
>> >bidders placed bids based on what was available at the time. I don¹t
>> >think there is anything historical involved here.PAT just wanted a
>> >product at the low bid, as required by law.
>> >
>> >
>> >George Gula
>> >
>> >On 8/6/16, 9:51 AM, "Pittsburgh-railways on behalf of Herb Brannon via
>> >Pittsburgh-railways" <pittsburgh-railways-bounces at mailman.dementix.org
>> >on
>> >behalf of pittsburgh-railways at mailman.dementix.org> wrote:
>> >
>> >>Jim,
>> >>I can tell you all about what was going on in the PCC era, however,
>> >you
>> >>will need to find someone who is more knowledgeable about the current
>> >era
>> >>to answer your question. I seldom ride the T these days inasmuch as I
>> >>really don't live near a station. I have to drive from Brentwood down
>> >to
>> >>Castle Shannon or Washington Jct to find a parking lot for the T so
>> >it's
>> >>easier and faster to drive into the city and park at Station Square
>> >then
>> >>ride from there to the main downtown.
>> >>
>> >>Bruce Wells, if you know him, may know about the current signal
>> >system.
>> >>
>> >>On Fri, Aug 5, 2016 at 8:17 AM, James Keener via Pittsburgh-railways <
>> >>pittsburgh-railways at mailman.dementix.org> wrote:
>> >>
>> >>> I've been commuting by rail and have noticed at least two distinct
>> >style
>> >>> of signal, color-light-clear-on-top on the red line and
>> >>>position-light-clear-on-bottom near south hills junction. Are there
>> >>>others?
>> >>> Are these historical accidents of who installed them or is there
>> >some
>> >>> significants to the type of display?
>> >>>
>> >>> Jim
>> >>> --
>> >>> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>> >>>
>> >>>
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>> >>
>> >>
>> >>
>> >>--
>> >>*Herb Brannon*
>> >>
>> >>*In Pittsburgh...........A City and*
>> >>*..........................A State of  Mind *
>> >>
>> >>
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> --
> Daria Phoebe Brashear
> AuriStor, Inc
> dariaphoebe.com
>
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