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Is a signal really necessary ?
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fungus



Joined: 17 Feb 2008
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Location: Dorset




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PostPosted: Mon Apr 21, 2008 8:58 pm    Post subject: Is a signal really necessary ? Reply with quote

I have just finished an artical in the May/June driving magazine by Steve Garrod, the Diamond Chief Examiner, in which he examines the use of signals.

Without going into detail, I can say that whilst I agree with a lot of what is said, one point I would not agree with is the need to signal a compulsory turn where the driver is in a dedicated lane.

Picture this. A roundabout on a dual carriageway controlled by traffic lights, with three lanes entering the roundabout. Lane 1, first exit and second exit,( lane 1 of the DC.) Lane 2, second exit, (lane 2 of the DC.) Lane 3, third exit, 3 o' clock. Exits at 9 o'clock and 3 o'clock single carriageways.

Roundabout heavily trafficked. Learner driver in lane one going second exit. on passing the first exit the learner signals left. In lane two, cars were passing the learner. There was absolutely nowhere else the learner could have gone, so was a signal really necessary?

Nigel
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dth



Joined: 13 Oct 2007
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PostPosted: Mon Apr 21, 2008 9:35 pm    Post subject: Re: Is a signal really necessary ? Reply with quote

fungus wrote:
There was absolutely nowhere else the learner could have gone, so was a signal really necessary?


Whenever this query arises, I always pose the question, "How can you be so sure that traffic in a dedicated lane is actually going in the designated direction?"

In the case you describe, it's a learner!! How many learners have you seen in the left lane going round to the right? How many experienced drivers are in the wrong position/lane on roundabouts? Is it only following drivers who benefit from signals?
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ScoobyChris



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PostPosted: Mon Apr 21, 2008 9:41 pm    Post subject: Reply with quote

Not sure if it's applicable to your example, but you have to remember that people who may be looking out for the signal may not know the car has come from a dedicated lane (or even know there is a dedicated lane!) so a signal may be beneficial. As with all things, it seems to depend on the individual circumstances.

One argument my office mate (DSA level driver) used to put forward about signalling was that he was not infallible so surely signalling regardless is safer than selectively signalling and potentially missing giving a signal. Kind of stopped my argument in its tracks! Laughing

Chris
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vonhosen



Joined: 11 Sep 2005
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PostPosted: Mon Apr 21, 2008 9:45 pm    Post subject: Reply with quote

ScoobyChris wrote:
Not sure if it's applicable to your example, but you have to remember that people who may be looking out for the signal may not know the car has come from a dedicated lane (or even know there is a dedicated lane!) so a signal may be beneficial. As with all things, it seems to depend on the individual circumstances.

One argument my office mate (DSA level driver) used to put forward about signalling was that he was not infallible so surely signalling regardless is safer than selectively signalling and potentially missing giving a signal. Kind of stopped my argument in its tracks! Laughing

Chris


If no consideration is given to whether the benefits are greatest in giving the signal or not , then there is a danger that giving the signal may be worse in certain circumstances, because it might be misleading.
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7db



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PostPosted: Mon Apr 21, 2008 11:32 pm    Post subject: Re: Is a signal really necessary ? Reply with quote

fungus wrote:
There was absolutely nowhere else the learner could have gone, so was a signal really necessary?


Don't you mean that there was absolutely nowhere else the learner could have gone without crashing?

...and after all isn't not crashing what this signalling stuff is about?
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TripleS



Joined: 13 Oct 2005
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PostPosted: Tue Apr 22, 2008 8:19 am    Post subject: Reply with quote

vonhosen wrote:
ScoobyChris wrote:
Not sure if it's applicable to your example, but you have to remember that people who may be looking out for the signal may not know the car has come from a dedicated lane (or even know there is a dedicated lane!) so a signal may be beneficial. As with all things, it seems to depend on the individual circumstances.

One argument my office mate (DSA level driver) used to put forward about signalling was that he was not infallible so surely signalling regardless is safer than selectively signalling and potentially missing giving a signal. Kind of stopped my argument in its tracks! Laughing

Chris


If no consideration is given to whether the benefits are greatest in giving the signal or not , then there is a danger that giving the signal may be worse in certain circumstances, because it might be misleading.


Whenever the question of 'do we or do we not signal' arises, the danger of signals being misleading is, quite rightly, raised - usually by Von. Smile

It certainly is a point to be wary of, but my preference in general is to give a signal - but be aware that somebody might misunderstand it, and leave yourself space and time in which to overcome the misunderstanding.

I haven't forgotten the time when I had a slight bump that may very well have been avoided, if the person I didn't know was there (my failing, admittedly) had had the opportunity to see a signal from me. They would then have been better placed to help me out.

This can be argued either way, and I suggest we keep it under review.

At the end of the day it is extremely valuable to have space and time in which to deal with what people actually do, as opposed to what they signal they're going to do, or look as if they might do.

Best wishes all,
Dave - getting older and more nervous. Sad
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waremark



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PostPosted: Tue Apr 22, 2008 10:25 am    Post subject: Reply with quote

I know this is not quite a discussion about whether to signal selectively, but more about whether to signal in a specific situation. In my opinion the most powerful reason to signal selectively rather than all the time is to raise your own level of thinking and awareness of what is happening around. Generally if in doubt about whether to signal in a specific situation the decision is fairly evenly balanced and either way will be fine.
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ROG



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PostPosted: Tue Apr 22, 2008 5:59 pm    Post subject: Reply with quote

I say to my LGV trainees that if in a designated lane then a signal may be given to CONFIRM your intentions to others or to inform pedestrians who may not know that you are in a designated lane.
As for car learners, if they use a signal then it is one less thing for them to worry about should one become necessary part way through what they are doing.
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fungus



Joined: 17 Feb 2008
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PostPosted: Tue Apr 22, 2008 8:59 pm    Post subject: Reply with quote

Maybe I have not described the exit clearly.

Lanes 1 & 2 follow a line directly into the dual carriageway. At the point of exit there is prominent kerbing. The road width would make trying to take the third exit very difficult due to the positioning of lanes 1 & 2, lane 3 being the only lane for that exit. Also the volume of traffic using lane 2 would make any other exit virtualy impossible.

Nigel.
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dth



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PostPosted: Tue Apr 22, 2008 10:26 pm    Post subject: Reply with quote

fungus wrote:
Maybe I have not described the exit clearly. etc etc............


Without seeing the actual situation, it's difficult to introduce exceptions with confidence but even so, I think all the above comments still apply.
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TripleS



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PostPosted: Wed Apr 23, 2008 8:01 am    Post subject: Reply with quote

dth wrote:
fungus wrote:
Maybe I have not described the exit clearly. etc etc............


Without seeing the actual situation, it's difficult to introduce exceptions with confidence but even so, I think all the above comments still apply.


Oh that's nice, we all speak with one voice - for the moment. Laughing

Well, apart from me that is, 'coz I damaged something in my throat and lost my voice about seven weeks ago, and I'm now reduced to a faint croaking whisper.

If this is curable it looks like needing some investigation and repair work. Meanwhile Mrs TripleS is naturally making the most of this - enjoying a bit of relative peace and quiet etc. Sad

Best wishes all,
Dave.
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