Give officers Facebook and improve safety
posted on: 10 May, 2011
Rather than forcing Officers of the Watch (OOWs) to act like dumb automatons in 
responding to a BNWAS every 30 minutes, would letting them indulge in their own 
distractions enhance vessel safety? 

In conversation with one ECDIS training provider, MITE learnt that young 
officers fortunate enough to be sailing on vessels equipped with broadband 
connections sometimes while away their hours on watch updating their social 
networking sites. This might not be as irresponsible and dangerous as it first 
sounds. Indeed, it chimes with the findings of new research on driver safety, 
emanating from the States.

>From this July, Bridge Navigational Watch Alarm Systems (BNWAS) will start to 
>become mandatory, under IMO regulations, implemented through its Maritime 
>Safety Committee (MSC). Under the terms of the amendments to SOLAS Chapter V, 
>Reg 19, new cargo ships over 150gt and all new passenger ships of any size 
>built after 1 July will have to be equipped with a BNWAS. Implementation will 
>then be phased in on existing tonnage over the following three years. 

BNWAS are designed to monitor bridge activity and detect lapses in attention 
that could lead to an accident. The performance standards state that the BNWAS 
should monitor the awareness of the OOW and automatically alert the master (or 
another qualified OOW) if for any reason the OOW becomes incapacitated. 

Under BNWAS, this should be achieved through a series of indications and 
alarms. It should also provide the OOW with a means of calling for assistance 
if required, and should be operational whenever the ship's heading or track 
control system is engaged, unless inhibited by the Master.

But are BNWAS really an effective solution to deck officer inattention? These 
alarm systems differ little from the Dead Man's Handle introduced on 
locomotives and urban mass transit systems early last century. Unlike the steam 
trains they superseded (when there was invariably a second person aboard who 
could most likely bring the train to a stop in an emergency), the driver on the 
newer locomotives is typically alone in the cab so failsafe automatic brakes 
were deemed desirable.

A similar mechanism was also employed on the nuclear bomb release system built 
into bombers such as the B-52 Stratofortress. It would ensure that the 
aircraft's payload of nuclear weapons would detonate in the event of the crew 
becoming debilitated by enemy missiles or other defences. Once armed, the 
system would ensure that the onboard nuclear weapons detonated if the aircraft 
dropped below a predetermined altitude. It is from this application where the 
term Dead Man's Handle was originally coined. 

Arguably BNWAS addresses the symptom, not the cause. Would it not be better to 
stop officer's losing concentration in the first place? Recent research on road 
safety undertaken at Kansas University (and published in The Journal of the 
Human Factors and Ergonomics Society [1]) suggests that a certain level of 
driver induced voluntary distraction may be a good thing. 

This article was taken from the latest copy of Maritime IT & Electronics, 
Apr/May 2011 - to read the rest of this article or if you would like to 
subscribe to this publication, please contact Lorraine Jordan at 
[email protected], or telephone 0207 382 2606



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