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lilbluefoxie

What does this button do?

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Route selection box. You find them at places where two trains stop but take different paths after leaving the station.

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http://nycsubway.org/perl/show?98247 Its a selector box thing at Smith-9th with buttons for (F) and (G) . What is it used for?

It's a Punch box. The T/O would punch in his route so that the train is diverted to the proper track, in this case the (G) would be diverted to the express tracks at 4th Avenue so it can relay back to Queens and the (F) would proceed on it's main route without any diversion.

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It's a Punch box. The T/O would punch in his route so that the train is diverted to the proper track, in this case the (G) would be diverted to the express tracks at 4th Avenue so it can relay back to Queens and the (F) would proceed on it's main route without any diversion.

 

Doesnt it call up control tower to warn em to set the switch at the next junction?

 

 

_______________

BTW Punch holes are mainly found in stations where junctions are found. And Most tunnels too.

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Yes. Whatever they said :cool::tup:

 

Haha wow. Was gonna say...they're quick! :)

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Doesnt it call up control tower to warn em to set the switch at the next junction?

 

 

_______________

BTW Punch holes are maunly found in stations where junctions are found. And Most tunnels too.

No, it's automatic.

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No, it's automatic.

 

How can that be. So if the Next train is an (F) at Smith and 9th, and sum1 pushes the (G) then the train would end up on the (G) tracks at 4th avenue. Doesnt make sense to me...

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No. That's why the train operator has to always check if his lineup is correct. (the right route is punched before leaving the station)

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From 47/50:

 

2166361682_5e78748b60.jpg?v=0

There you go. This explains the automatic punchbox, what you punch is where you'll end up.

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How can that be. So if the Next train is an (F) at Smith and 9th, and sum1 pushes the (G) then the train would end up on the (G) tracks at 4th avenue. Doesnt make sense to me...

 

Let's try this again.....if the T/O approaches Smith-9th Streets and its a (F) train he punches the "(F)" button and the (F) train continue down the local meaning the switch didn't divert the from train from the local to the express tracks. If the (G) comes and the T/O punches the "(G)" button the switch diverts from local to the express track making the (G) train switch onto the express right before 4th Avenue-9th Street stopping in the middle of the express tracks!

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From 47/50:

 

2166361682_5e78748b60.jpg?v=0

 

werid.. and kool. Of course the T/O can cancel his request and do a reset on the lineup

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Let's try this again.....if the T/O approaches Smith-9th Streets and its a (F) train he punches the (F) button and the (F) continue down the local meaning the switch didn't divert the from train from the local to the express tracks. If the (G) comes and the T/O punches the (G) button the switch diverts from local to the express making the (G) train switch onto the express right before 4th Avenue-9th Street stopping in the middle of the express tracks!

 

Ok now wat if the T/O already hit the (F) punch, a (G) is behind.

 

The (F) is already making a move but still hasnt hit the the diverging track to head to stillwell. But when the (G) Makes it in. The Signal is Yellow(Or Clear) and the T/o presses the (G) Punch. Would that cause a problem to the (F) which hasnt made it passed the (G) track junction.?

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Ok now wat if the T/O already hit the (F) punch, a (G) is behind.

 

The (F) is already making a move but still hasnt hit the the diverging track to head to stillwell. But when the (G) Makes it in. The Signal is Yellow(Or Clear) and the T/o presses the (G) Punch. Would that cause a problem to the (F) which hasnt made it passed the (G) track junction.?

This can't happen because punch boxes are in the station for the diverging tracks nearly outside the station. If that (G) train was ever close to the station it would never make it to the platform marker because of signal block restrictions. (so many signals have to be cleared in your path before you can make a move, this depends how fast the train in front of you clears the tracks)

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Ok now wat if the T/O already hit the (F) punch, a (G) is behind.

 

The (F) is already making a move but still hasnt hit the the diverging track to head to stillwell. But when the (G) Makes it in. The Signal is Yellow(Or Clear) and the T/o presses the (G) Punch. Would that cause a problem to the (F) which hasnt made it passed the (G) track junction.?

 

The (G) can't be that near behind the (F).....the (G) will be stopped @ the curve @ Smith-9th Street. Once the (F) leaves the (G) will slowly pull in!

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This is why the following bit of advice is repeated to new T/Os:

 

KNOW YOUR ROUTE!

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The (G) can't be that near behind the (F).....the (G) will be stopped @ the curve @ Smith-9th Street. Once the (F) leaves the (G) will slowly pull in!

 

 

I meant like if the the (F) was between the Smith and 4th avenue. Of course the (G) can make it in, but would be stalled till the (F) makes its move!

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Ok now wat if the T/O already hit the (F) punch, a (G) is behind.

 

The (F) is already making a move but still hasnt hit the the diverging track to head to stillwell. But when the (G) Makes it in. The Signal is Yellow(Or Clear) and the T/o presses the (G) Punch. Would that cause a problem to the (F) which hasnt made it passed the (G) track junction.?

It's the T/Os resposibilty to confirm he has the proper line up. Some Route Request

boxes have an associated indicating light that illuminates to

show the selection made and some boxes have a CANCEL

button. If a wrong selection is made, the cancel button must

be pressed before the correct selection button is pressed. If

a train arrives at a Home Signal displaying a STOP aspect

or an incorrect route, the Train Operator must press the button

appropriate for the route or destination of the train. The Train Identification/Route Request

can be found next to Home Signals or in Stations.

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I meant like if the the (F) was between the Smith and 4th avenue. Of course the (G) can make it in, but would be stalled till the (F) makes its move!

 

If the (F) train is inb/w Smith-9th Streets and 4th Avenue-9th Streets station on the track the (G) can't pull out of Smith-9th Streets until the continues its way toawards 4th Avenue-9th Street!

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No, it's automatic.

 

4th Ave. tower is not automatic and it is manned 24/7. The punch box at Smith-9th Street. rings a bell in the tower which tell the tower operator what train is on the way. Many times I have been on a south bound (F) that has stopped just north of 4th Ave. at the homeball because the TW/O has not set the line up and the T/O will radio the tower. If 4th Ave. was an automatic, this would not happen. When the (G) goes to Church Ave., will the tower still be manned?

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There you go. This explains the automatic punchbox, what you punch is where you'll end up.

 

Except in " ATS Land ", aka the IRT mainline. You can punch anything you want or punch nothing at all. The towers will know what you punch but they don't control the switches the ATS computers do. As a matter of fact after 7/25 the tower operators are being removed from the IRT mainline for the most part so when your (3) train ends up at 149th St- Grand Concourse or your (2) train ends up at South Ferry blame the T/O or the ATS computer, not the tower operator. Once that system mis-identifies a train the whole line slows to a crawl until or if the problem can be rectified. At least now the RCC can give control back to the affected tower and clear up the problem in the field but after that date........ Help.

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Except in " ATS Land ", aka the IRT mainline. You can punch anything you want or punch nothing at all. The towers will know what you punch but they don't control the switches the ATS computers do. As a matter of fact after 7/25 the tower operators are being removed from the IRT mainline for the most part so when your (3) train ends up at 149th St- Grand Concourse or your (2) train ends up at South Ferry blame the T/O or the ATS computer, not the tower operator. Once that system mis-identifies a train the whole line slows to a crawl until or if the problem can be rectified. At least now the RCC can give control back to the affected tower and clear up the problem in the field but after that date........ Help.

 

If some werido(Like kids who play around) was to press the button without authorization and the train is not in the station would it automatically set signals at an interlock? Which then the T/O on the next train presses the correct route but sum1 already pushed it.

 

Or would the tracks have to feel the train wheel..?(Thats what i heard)

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If some werido(Like kids who play around) was to press the button without authorization and the train is not in the station would it automatically set signals at an interlock? Which then the T/O on the next train presses the correct route but sum1 already pushed it.

 

Or would the tracks have to feel the train wheel..?(Thats what i heard)

 

This is why you have to KNOW YOUR ROUTE.

 

A T/O should know that at Smith-9th the (F) takes a bottom green while the (G) takes a bottom yellow.

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