By George R. Strakosch, Robert S. Caporale
This new version of a one of a kind instruction manual offers a vital updating to maintain the ebook present with expertise and perform. New assurance of issues comparable to machine-room-less structures and present operation and keep an eye on strategies guarantees that this revision keeps its status because the optimum normal reference on vertical transportation. A workforce of latest individuals has been assembled to shepherd the ebook into this new version and supply the services to maintain it brand new in destiny versions. a brand new copublishing partnership with Elevator international journal guarantees that the standard of the revision is stored on the maximum point.
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3 m), and even then the passenger response time to an elevator will be long enough to require extra waiting time at landing calls for some of the cars. Landing call buttons should be located at the center of the lobby, on opposite sides. 18. Unacceptable six-car arrangement. 19. Eight-car arrangement. 56 THE BASIS OF ELEVATORING A BUILDING they may see each elevator. Passengers can then respond as quickly as possible, with minimum walking distance. Using the main floor elevator lobby as a passage is not recommended, as accommodating any kind of traffic other than elevator traffic would require too wide a lobby.
The total installation is equivalent to two single elevators side by side, with most of the disadvantages of a single car and the sole advantage of having to walk only one floor if an elevator is shut down. Service is not improved as it would be in a conventional, all-stop, two-car installation. 12b), whereby waiting time is reduced, but half the passengers must walk. 12c); passengers must walk up or down only half a floor. 12. (a) Odd-even skip-stopping—single elevator performance on each floor. (b) Alternate floor skip-stopping—dual elevator performance on half the floors, no elevator service on the other half.
The alternative arrangement, four cars in a row, has some disadvantage because of the increased distance between the landing call button and the last car in the row. 7 m). 16) should have a lobby from one and one-half to two times the depth of an individual elevator, but no less than 10 ft (3 m) for those times when all cars arrive at the main lobby filled, and passengers entering or leaving must pass each other. In addition, 10 ft (3 m) is about the minimum space required for elevator machinery at the machine-room level.
