Just as, a decade+ ago, Google launched its own webmail product with significantly more storage as the carrot to peel users away from rival email products, it's now repeating the trick with photos — using the competitor-beating promise of free unlimited photo storage to lure in and lock down access to mobile users' principle expression stream.
On the other end of the political spectrum there is a traditional orientation toward horizontal equity (concern for the principles of allocation of resources and responsibility - user pays principle- or - polluter pays principle-) stressing that costs should be born to a larger extent by the users.
Moreover, it can not be combined with the MIMO Multiuser capability, since the application of MIMO Multiuser techniques needs for the users' selection principle to choose users that show the least interference among themselves [4].
Petrol consumption used to serve as a reasonable proxy for road use, satisfying the "user pays" principle for road funding.
One side constrained traffic assignment model is presented based on the local nearsighted user equilibrium principle by taking advantage of network dual equilibrium theorem.
Traditionally, transit network assignment is modelled based on the user equilibrium principle, according to which individual passengers are assumed to select paths that minimize their travel disutility.
Assuming that the actual demand of each origin destination (O D) pair follows a certain distribution, the road users choose their destination and route in accordance with the user equilibrium principle that is based on the long-run perceived travel cost.
Tolling brings us closer once again to the "user pays" principle that helped create America's modern highways.
For a number of years the European Commission has promoted the application of the user-pays principle to road use, through electronic-charging systems which can ease traffic flows across the European Union, as well as help reduce air pollution and raise funds for infrastructure investment.
First, the model would require the introduction of a user-pays principle for the 'strong' segments of society.
