Talk:Signaling of the New York City Subway/GA1

GA Review
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Reviewer: Dom497 (talk · contribs) 02:15, 24 April 2018 (UTC)

This review will take a little longer for me to complete. I will try to review a bit of the article each day.-- Dom497 ( talk ) 02:15, 24 April 2018 (UTC)

Lead
✅ ✅ ✅
 * The first sentence needs to be reworded. Having the two "operates/operated" seems to break the flow.
 * "..with the current Automatic Block Signaling system" - Remove "Automatic Block Signaling"
 * "...CBTC systems." - Systems or system?

Block signaling

 * "...can be forced to switch to stop aspect by interlocking tower" - This sounds like broken English.
 * It actually is not broken English, however (...can be forced to switch to the "stop aspect", meaning that the interlocking tower can force the signal to display a stop aspect). This has been fixed. epicgenius (talk) 18:28, 27 April 2018 (UTC)
 * "...additional signals (call-on, dwarf, marker, sign, time signals)" - More info needs to be given in regards to all these terms
 * These are already described further below, except for call-on, which I fixed. epicgenius (talk) 18:28, 27 April 2018 (UTC)
 * "(No Key-By without permission from Control Center.)" - What does "Key-By" mean.
 * The last couple of sentences before the start of the "Types of block signals" need references.
 * ✔️ by Kew Gardens 613.
 * All the bullet points need references.
 * All the bullet points need references.

Types of block signals

 * Can you please add citations to each of the image captions (the types of signals) just so its easier for the reader to locate the source (rather than having to figure out which source to look at in the paragraphs below)?
 * When you mention "Station Timer", include the same words in the appropriate signal image above so a reader can easily connect the dots.
 * In the second paragraph, three sentences only use citation 10. You can just include citation 10 on the third sentence.
 * Regarding the paragraph about "Wheel Detectors", can more information be added regarding how they work?
 * ""Gap Filler Signals" are used at the 14th Street–Union Square station and formerly at the South Ferry Loop station, which closed on June 27, 2017, where gap fillers extend out from the platforms to bridge the space between the platform and the car body and door at the curved stations." - This sentence needs some reworking (it doesn't flow).
 * Why are "Gap Filler Signals" not included in the signal images?
 * There is only one bulb and one indicator, so it would not necessarily be helpful to add an image. epicgenius (talk) 17:32, 28 April 2018 (UTC)
 * "The lights on the old-IRT signals, from bottom to top, were yellow, red, and green. The lights on current signals are arranged from top to bottom, are green, yellow, and red." - This paragraph just seems randomly inserted here. I would probably mention this at the start of the sub-section. The next paragraph also seems like something that should be mentioned near the beginning.
 * Moved up. epicgenius (talk) 17:32, 28 April 2018 (UTC)
 * Why are "Gap Filler Signals" not included in the signal images?
 * There is only one bulb and one indicator, so it would not necessarily be helpful to add an image. epicgenius (talk) 17:32, 28 April 2018 (UTC)
 * "The lights on the old-IRT signals, from bottom to top, were yellow, red, and green. The lights on current signals are arranged from top to bottom, are green, yellow, and red." - This paragraph just seems randomly inserted here. I would probably mention this at the start of the sub-section. The next paragraph also seems like something that should be mentioned near the beginning.
 * Moved up. epicgenius (talk) 17:32, 28 April 2018 (UTC)
 * Moved up. epicgenius (talk) 17:32, 28 April 2018 (UTC)

Types of interlocking signals

 * "Interlockings are places where tracks are connected by switches and where routes may conflict" --> "Interlockings are sections of track that are connected by switches; typically where routes may conflict". (My revised sentence is just a suggestion)
 * Routes always confict at interlockings, that is why they are called interlockings. When one route is set, all other routes are blocked out to prevent dangerous situations.--Kew Gardens 613 (talk) 21:27, 27 April 2018 (UTC)
 * I have gone with another wording, in any case. epicgenius (talk) 17:32, 28 April 2018 (UTC)
 * "Another type of signals are dwarf signals" --> "Another signal type is called a "dwarf signal"".

Chaining

 * "...following the twists and turns of the railroad line..." --> "following the path of the track"

Automatic Train Supervision

 * I think it makes sense that this section be a subsection of "Automation"?
 * These are actually two different systems. ATS still has operators manually driving the trains, but they have limited automatic guidance (such as for speed regulation), and the train controller knows where the trains are. Automation has the computer drive the train most of the time, with the train operator only at the controls in case the train needs to switch to manual operation. epicgenius (talk) 17:32, 28 April 2018 (UTC)
 * "The long duration of ATS-A's deployment was attributed to bad communication between workers and contractors; because of the uniqueness of the New York City Subway's interlocking equipment, which necessitated extra workarounds; because of the MTA's use of its own workers rather than of contractors' workers; because of the poor training that contractors had; and because of bad communication interfaces." - Run-on sentence (lots of "because")
 * The semicolons are part of a serial list (i.e. "The long duration was attributed to A, B, and C"), but I have reworded it anyway. epicgenius (talk) 17:32, 28 April 2018 (UTC)

Automation
✅
 * "Once the Zone Controller has determined, based on track circuit information and train localization, that the CBTC train is a single discrete train ("sieved")." - This is an incomplete sentence.

42nd Street Shuttle automation

 * Looks good.

CBTC test cases

 * Looks good.

Culver Line CBTC
✅– That was for the test track. The CBTC project will be completed in May 2022.
 * "The estimated completion date was scheduled for March 2015, and the installation is expected to be permanent." - I'm a little confused. So CBTC has yet to be implemented? If so, when is the new completion date?

Queens Boulevard Line CBTC
✅ – Reworded
 * "It also planned to start training operators by December 2018 and convert the 309 R160 consists by June 2020" - The last part of the sentence doesn't make sense

Eighth Avenue Line CBTC

 * Looks good.

Other lines

 * Looks good.

Ultra-wideband signaling and other proposals
✅ ✅
 * "(see Technology of the New York City Subway § Cellular phone and wireless data)" - This can be simplified to avoid the weird symbol. Also, instead of have this in brackets, link to the article through the words "current setup".
 * "...to the Challenge" - Why is "Challenge" capitalized?
 * I just added a new sentence and reference, based on an article that was published last week. I'd appreciate if you would briefly check it. epicgenius (talk) 13:24, 30 April 2018 (UTC)
 * Yep looks good.-- Dom497 ( talk ) 17:53, 30 April 2018 (UTC)