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3581614 
Journal Article 
Indoor atmosphere hazard identification in person entry urban utility tunnels 
Curiel-Esparza, J; Canto-Perello, J 
2005 
1 
Tunnelling and Underground Space Technology
ISSN: 0886-7798 
20 
5 
426-434 
WOS:000230377000003 
Urban underground space is a finite and non-renewable resource. Sustainable use of valuable shallow subsurface space requires the wide use of utility tunnels. However, traditional trenching has been adopted in many projects arguing utilidors present atmosphere hazards related to any multipurpose confined space. Utility tunnel operational risks might seem discouraging at first, but urban planning for an underground sustainable future needs these efficient facilities. The aim of this work is to characterize utilidor indoor atmosphere hazards to show how these risks could be minimised, in order to guarantee a better standard of safety and health protection. (C) 2005 Elsevier Ltd. All rights reserved. 
utility tunnel; workplace safety; indoor atmosphere