In order to generate that ad revenue, they need to ensure a steady flow of traffic - so cutting back requires some careful consideration.
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Wal-Mart plans to keep a steadier flow of customer traffic this year by planning out an early discounting season rather than waiting until mid-December to clear out slow-moving merchandise.
Hence orchestration, whereby a single controller coordinates the flow of information, like a traffic cop.
From a traffic flow point of view, the hole in the support on the far side of the box was occupied by a machine bolt with a nut loosely screwed into the end.
Opnet eventually turned that customization into NetCop, an application giving network managers a dashboard-like view of traffic flow and performance.
An interim investigation has highlighted that improvements could be made to aid traffic flow by widening a section of the carriageway.
Other transport projects anticipated this year include work on a new Isle of Dogs Crossrail station, "intensification" of the work to extend the East London Line and a host of initiatives to help smooth traffic flow.
Other projects will include a network of sensors to monitor air quality, traffic flow, water supply and other parameters.
The report depicts an increasingly competitive environment, one in which the flow of information, knowledge, personnel and investment has become a two-way traffic.
But the anti-Avanti coalition of environmentalists insists that a second tube will not - as its proponents argue - improve the trans-Alpine flow of traffic.
In our research we aim to be able to emulate this approach in a new kind of software that can provide significant benefits in improving the efficiency of traffic flow, hence improving road space utilisation, reducing journey times and potentially, improving fuel efficiency.
The circles of influence in a flock of birds resemble (perhaps not flatteringly) how our online social networks shape traffic flow to content.
Newcastle had been chosen because the city had "a long track record of making the city more intelligent using transport systems in order to keep the traffic flow moving", she said.
The technology intercepted the flow of traffic from Libya's main Internet service provider and harvested information from the stream using a method known as deep-packet inspection.
"Nothing will show the problem clearer than a collection of random photos from ordinary residents trying to get on with everyday lives, but cannot due to the flow of traffic", he said.
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