From: David Crocker (dcrocker(at)eschertech.com)
Date: Tue 19 Nov 2002 - 09:57:03 GMT
It depends the personalities of the individuals and how well they are trained to cooperate. See the aviation Cockpit Resource Management literature for details. One danger of multi-crew operations is the phenomenon of "risky shift", which is that when making a decision in which one of the choices involves an element of risk, a group of people tends to accept a higher level of risk than the individuals in the group would. David Crocker Escher Technologies Ltd. www.eschertech.com +44(0)1252 336565 -----Original Message----- From: safety-critical-request(at)cs.york.ac.uk [mailto:safety-critical-request(at)cs.york.ac.uk]On Behalf Of Gunhild Halvorsrud Sent: 19 November 2002 07:38 To: safety-critical(at)cs.york.ac.uk Subject: [sc] Are four eyes better than two? Hallo! I need some help from the list in finding some literature concerning this topic. We are currently discussing if adding an extra train driver when technical barriers are weak improves safety. I think this question is valid in other industries as well. Does adding an extra operator improve the safety of the operation?