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One Stop Elevator - Volume2 Issue 1
Volume 2 Issue 1

I don't believe it!

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Image Folders

How many images...the IMAGE-O-METER is running!

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New Image Locations Update - January 3rd, 2009

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Did You Know #13 - Escalators and Moving Walks
Tandem Operation (12-16-2008)

From: ASME A17.1 - 2004 Safety Code for Elevators and Escalators

A definition:

Escalators, Tandem Operation: escalators used in series with common intermediate landings.

6.1.6.6 Tandem Operation. Tandem operation escalators shall be electrically interlocked where traffic flow is such that bunching will occur if the escalator carrying passengers away from the intermediate landing stops. The electrical interlocks shall stop the escalator carrying passengers into the common intermediate landing if the escalator carrying passengers away from the landing stops. These escalators shall also be electrically interlocked to assure that they run in the same direction.

6.2.6.6 Tandem Operation. Tandem-operation moving walks shall be electrically interlocked where traffic flow is such that bunching will occur if the moving walk carrying passengers away from the intermediate landing stops.
The electrical interlocks shall stop the moving walk carrying passengers into the common intermediate landing if the moving walk carrying passengers away from the landing stops. These moving walks shall also be electrically interlocked to assure that they run in the same direction.

As you can see, escalators and moving walks have identical requirements for units in tandem to prevent bunching.

They are:

1 - Stop the unit carrying passengers into an intermediate landing if the unit carrying passengers away from this landing stops.
2 - Units in tandem must be arranged to run in the same direction.

Tandem Operation
Longqing Gorge near Beijing, China
These are reportedly the longest series of escalators in the world.
I am told that there are eight sets of escalators (258m in 8 sections) housed in this 'dragon'...
I wonder if they are all electrically interlocked because they appear to be in series...

Tandem Operation
Valencia, Spain
I wonder if this configuration is required to be interlocked to prevent bunching?
If only one escalator 'carrying passengers away from the intermediate landing'
stops there is a way to prevent bunching...but what if both escalators carrying
passengers away from the intermediate landing stop?

Tandem Operation
Paris, France
A similar situation here...

Tandem Operation
Escalators to Heaven! (1 of 2)
(Exclusive image to One Stop Elevator magazine)
These units will definitely be installed to code but would they have to be?
You know God used the best installers available...ex-Otis men from the U.S.A!

Escalators to Heaven! (2 of 2)
(Exclusive image to One Stop Elevator magazine)
As you can see they are quite ornate...and fast!

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Did You Know - Archive

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Picture of the Week

One Stop Elevator
Image Number 5000!

Escalators - Catchall

01-03-2009
You can press the stop button all you want...
but I'm not stopping at 5000!
Image provided by: Herbie T. Mann
I know more!

Picture of the Week - Archive

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Coffee Mug Sightings

Mug Sighting
Santa is beat...

One Stop Elevator Coffee Mug Sightings - Archive

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A Baby...Ohhhhhhhhhhhh!

What's New?

January 3rd, 2009

Finally reached Image Number 5000!

Picture of the Week

December 27th, 2008

Added 18 new images to the Catchall Section of the Escalator Folder beginning here.

December 22nd, 2008

Added 52 new images to the Escalator Folder
Oscar Rodriguez sent me an image of a Peelle with 'normal' size bracelets and the remainder of the images begin here.
16 new escalator construction images beginning here.
28 new escalator destruction images beginning here.

December 20th, 2008

Did You Know #13

Added 47 new images to the Noteworthy Section of the Escalator Folder beginning here.

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Indices

elevatorbob Update - January 3rd, 2009

Folder & Feature Update - January 3rd, 2009

Did You Know Update - January 3rd, 2009

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