NDLI: Assessment of the impact of dipped guideways on urban rail transit systems: ventilation and safety requirements

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Assessment of the impact of dipped guideways on urban rail transit systems: ventilation and safety requirements

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1982
Description	The ventilation and fire safety requirements for subway tunnels with dipped profiles between stations as compared to subway tunnels with level profiles were evaluated. This evaluation is based upon computer simulations of a train fire emergency condition. Each of the tunnel configurations evaluated was developed from characteristics that are representative of modern transit systems. The results of the study indicate that: (1) The level tunnel system required about 10% more station cooling than dipped tunnel systems in order to meet design requirements; and (2) The emergency ventilation requirements are greater with dipped tunnel systems than with level tunnel systems.
File Size	1793943
Page Count	43
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19820019316
Archival Resource Key	ark:/13960/t6qz72g49
Language	English
Publisher Date	1982-01-01
Access Restriction	Open
Subject Keyword	Urban Technology And Transportation Ventilation Fans Air Flow Rapid Transit Systems Underground Structures Passageways Urban Transportation Fires Ventilation Rail Transportation Computerized Simulation Safety Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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