tim.....:
> "Markku Grönroos" wrote in message
> news:2yMwk.61891$_03.106@reader1.news.saunalahti.fi...
>>
>> "tim....." kirjoitti
>> viestissä:6ig793FqdvdkU1@mid.individual.net...
>>> For example there's a road near my sister that's been made "no right
>>> turn" from 06:30 to 09:30 M-F to stop the traffic backing up in the
>>> peak.
>>>
>>> How do you represent this in a sat nav?
>>>
>> The gadget generates a route in which this turn is passed from 0630 to
>> 0930 on weekdays. At other times it is a valid segment of routing.
> And how many devices do you know that can support this operation.
Probably none right now. But that shouldn't be a reason not to suggest
such function. After all, look at the speed in which GPS devices are
being developed. They have functions to circumvent traffic jams now.
They include actual texts of road signs, etc. These types of
information weren't commonly available, say, three years ago.
The function under thread here requires each object (road crossing,
bridge, roundabout) to have time/date-availability attributes and a
programmed method "is_available(datetime)" returning "true" or "false".
The hard work is to get database tables altered/converted and initially
filled with proper data. However, since the default value is "true",
this isn't rocket science.
> My question wasn't "how can it theoretically be solved", it's "how is it
> actually solved" (and IME the answer is "it isn't").
True. But your next question would probably be: could this be solved
witin, say, the next year?
What would you suppose a reasonable answer would be?
--
Erick
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