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The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
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From page 1...
... Elevators and escalators (El/Es) play important roles in public transportation, moving passengers vertically to train stations above and below grade levels.
From page 2...
... 2 Collected literature, while useful, is somewhat limited. Therefore, the survey questionnaire administered to the case study agencies became the primary tool used to obtain detailed El/Es information.

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