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The ­ps and Downs of Making Elevators Go

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Theresa Christy, with stopwatch

Theresa Christy, with stopwatch, inside an elevator at the Westin St. Francis hotel in San Francisco.

Credit: Winni Wintermeyer for The Wall Street Journal

You press a button and wait for your elevator. How long before you get impatient and agitated? Theresa Christy says 20 seconds.

From The Wall Street Journal
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