I have found the practice of showing the time (hh:mm) as a useful one. This
has been used at least in France. If there is no message, the road user
does not know whether the system is down or that there is just no message
to display.
Regards, Risto Kulmala
At 14:02 21.8.2004 +0100, Alexandre Meirelles wrote:
>Dear Colleagues,
>
>We have recently implemented Variable Message Signs (VMS) in the city of
>Belo Horizonte (Brazil)and facing the following dilemma: what sort of
>messages we should display when there is no "traffic problems"; is it valid
>to display traffic education messages ? Or should the signs remain turned
>off ? Any suggestions, theoretical or state of practice literature will be
>very helpful.
>
>Tks.
>
>Alexandre Meirelles
>Traffic Control Manager
>BHTRANS - Belo Horizonte Transport and Traffic Authority
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