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From: "Carlos E.R." <robin_listas@es.invalid>
Newsgroups: sci.electronics.design
Subject: Re: Full video of ship hitting and destroying the Francis Scott Key
 bridge in Baltimore
Date: Sun, 31 Mar 2024 22:52:34 +0200
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On 2024-03-30 23:18, Don Y wrote:
> On 3/30/2024 11:03 AM, Carlos E. R. wrote:
> 
> [Costa Concordia]
> 
>>> But, IIRC, this wasn't the first time he had done so.  Therefore, his 
>>> employers
>>> COULD have noticed that his actual track would put the vessel in 
>>> danger and
>>> reprimand him of it.
>>
>> True.
> 
> So, *he* takes the fall for a practice that a responsible business should
> have stopped long before.

Yes.

A few years ago there was a high speed train accident in Spain. The 
driver did not slow down when nearing certain curve, he was distracted 
maybe talking with the conductor.

79 deaths.

He got the full and sole blame.

Not even the surviving victims and families of the dead accept this.

The truth is that that section of the track did not have the security 
systems that other tracks or sections of this same track have. These 
systems would have warned the driver, sounded and alarm, and ultimately 
stopped the train.

But there was hurry to build and put the tracks into service.

It is bollocks to trust the security of hundreds of passengers on a 
train doing over 200 Km/h to a single person. Trust that he will be 
fully attentive and not commit errors during every second of a few hours.

https://en.wikipedia.org/wiki/Santiago_de_Compostela_derailment


> 
>>>> Yeah, the Front Siena could be under such an autopilot system and 
>>>> the crew confidently waiting for the buzzer to warn to change to 
>>>> manual mode.
>>>
>>> Like self-driving cars.  This doesn't free you from the RESPONSIBILITY
>>> for the safe operation of the vehicle.
>>>
>>> When SWMBO bought her most recent car, backup cameras and blind spot
>>> warning indicators were pretty much standard across the market.
>>> One salesperson bragged that she never bothered to look over her
>>> shoulder when backing up or checking mirrors before changing lanes
>>> (as if the technology was infallible).
>>
>> I use the mirrors for backing up, but actually the rear camera has a 
>> better view, so I use it most of the time.
> 
> My gaze moves from rear view to side mirrors to over-the-shoulder to backup
> camera.  It's amazing how easily people and things (less so than vehicles)
> can appear out of nowhere.

The camera sees way more. Often the camera sees a person that is not in 
the mirror, it is on the other mirror, or even nowhere.

If the camera doesn't start, I wait.

It is not an automatic warning system, I still have to be looking 
attentively.

> 
> Distressing to see "old folks" who just put it in reverse and HOPE
> (it appears many elderly have problems rotating their heads that far)

It is possible.


> 
>> I have no automatics for changing lanes.
> 
> I wouldn't *rely* on them but consider them another "input" to be 
> considered.
> They tend to be more of an annoyance, though.  E.g., if navigating a turn
> in a situation with multiple turn lanes, they will alarm (normally, they
> only "indicate" visually but if you have THAT turn signal engaged, they
> are more insistent).
> 
> Cars make too many frigging noises, nowadays!

Yep.

> 
>>>> I think other method is for the autopilot to switch off and sound a 
>>>> buzzer on arrival.
>>>
>>> Then the vessel is "under power" and "rudderless".
>>>
>>> ANY autopilot has to be supervised.  So, how do you ensure supervision?
>>> (Or, do you just let lawsuits deal with it all, after the fact?)
>>
>> It is what airplanes do. On certain conditions, the autopilot 
>> disengages and sounds some type of alarm in the cockpit.
> 
> But, pilots sit *in* the cockpit -- and, there are regulations governing
> their actions.

Yep.

> 
> Skipper of a fishing vessel is more likely to play fast and loose with
> "rules" and "best practices" -- because he doesn't have the luxury of
> having extra staff or other resources.  Look forward... see anything?
> OK, assume nothing will pop up suddenly and turn your attention to some
> other task (and lose track of how much time has elapsed since the last
> time you checked your course).

Right.


-- 
Cheers, Carlos.