From: Tex Texin (textexin@xencraft.com)
Date: Wed Mar 25 2009 - 14:38:32 CST
There is a great book "Are your lights on?" which discusses problem
solving and a key example they give is the problem of traffic through
tunnels.
After telling people they must turn their lights on when entering the
tunnel, they would like to remind people to turn their lights off on
exit.
Of course, if it is night time, they should leave their lights on, and
also if it is raining, etc.
Creating a sign that lists all the conditions for turning lights on or
off is too challenging. The final solution is to simply have a sign
asking "Are your lights on?" and trusting the driver will then do the
right thing.
Showing a hill is probably sufficient to remind people to test their
brakes regardless of it going up or down, so the hill example is not
problematic.
However, I can guess there are some problem cases.
In the U.S. I sometimes find the placement of do not enter or one way
signs on medians confusing. They are marking one side of the median as
exit only, but it is ambiguous since the sign is seen equally from
both entrance and exit. (There are no arrows or other direction.) You
have to know both the road rules and local culture to interpret
properly. (And even then it is ambiguous.)
Quoting Jonathan Rosenne <jr@qsm.co.il>:
> Use your eyes
>
> Jony
>
> -----Original Message-----
> From: unicode-bounce@unicode.org [mailto:unicode-bounce@unicode.org] On
> Behalf Of Debbie Garside
> Sent: Wednesday, March 25, 2009 11:51 AM
> To: 'Mark E. Shoulson'; unicode@unicode.org
> Subject: RE: writing direction
>
> In relation to road signage, imagine a sign displaying a hill gradient...
> The ask yourself, is the hill going up or down? How do you know? ;-)
> Reading patterns!
>
> Debbie Garside
>
> -----Original Message-----
> From: unicode-bounce@unicode.org [mailto:unicode-bounce@unicode.org] On
> Behalf Of Mark E. Shoulson
> Sent: 24 March 2009 17:19
> To: unicode@unicode.org
> Subject: Re: writing direction
>
> Vinod Kumar wrote:
>
>>
>> Now consider the incoming traffic. ...
>>
>> Now consider driving along, reading the sign boards on the side of
>> the road you are on. ...
>>
> It would seem to me that where writing-system direction comes into play
> would mainly be for signs, which would mostly be on the side of the road
> that you are on. I would think it would be most helpful if the reading
> direction would lead your eye back onto the road, so driving on the left
> would work for LTR languages and on the right for RTL languages. But
> the effect is so small, who cares...
>
> I remember in a class on presentations once they told me that when
> presenting and referring to a slide being projected on the screen, you
> should stand on the right side of the screen (right side as you face the
> audience; the audience's left) and gesture or point at the slide using
> your left hand. That way the reader easily moves from you to what
> you're pointing to, and at the beginning of the line.
>
> ~mark
>
>
>
>
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