This is all useful information for current traffic planning, but Dr Helbing and Dr Treiber also have their eyes on the future.
With many nations increasingly focused on the notion of energy independence, the pressure to increasingly extract all useful local resources is also increasing.
Approved by politicians everywhere, the best investment by this measure is a state-run lottery or, more significantly, an all-market index fund from which all useful inside information has been excluded.
The poor unemployed may be a new labour pool, but companies may not find them all that useful.
It's all incredibly useful -- and except for the fact that everything appears over to the right, it's very similar to the Notifications that debuted in iOS 5.
These are all vitally useful strategies.
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But among the tasks the machine can perform in a single step are edge detection, inversion, the identification of lines and shapes of different orientations, and the filling-in of concave shapes all things that are useful in image-processing, and not all of which can be managed by digital technology.
Those abilities (we can name this meta-competences) will be useful all along their professional life.
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The WPA and the CCC were all about building useful, tangible things that made the country stronger and more competitive.
Webinars, podcasts, DVD sets and books all prove very useful in enhancing incomes while bringing in new life coaching clients.
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What happens is simple: by repeatedly focusing your attention on the phone, you unwittingly teach your brain that checking the smartphone and email all day is useful and important.
Warwickshire are within touching distance of victory after the third day of their Division One match against Kent at Edgbaston after Ashley Giles put in a useful all-round display.
He taught in a school, hitch-hiked through 45 of the then 48 states and worked as a textbook editor in New York, all of it useful preparation for the kinds of books that were to make his name.
To be frank, there's a lot going on here, and not all of it is useful.
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And almost two-thirds described a tick-box approach to measuring progress as "unhelpful" or "not useful at all".
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As far as I can tell, for advice to be useful at all, it needs to be preceded by compassion.
They can help on negotiations, operating a business, hiring or firing, accounting, finance, legal and probably most useful of all, their contacts.
We love ETFs, but they are not all equally valuable or useful.
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Much of his early poetry is sententious, a poetry written with designs upon its readers which strives above all to be morally useful.
Nor even that it is possible to extract as useful work all the energy in gasoline or any other possible violation of the laws of thermodynamics.
Some cards weren't useful at all, including a calendar card that only had room to display one appointment (and it was invariably someone else's from a team calendar).
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It is quite possible that technologies being developed for other purposes (such as lasers, which are useful for all sorts of advanced materials processing) will make the process cheaper and easier still.
But is all that data really useful?
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