As mentioned in a previous post about the Oxford Circus intersection getting a revamp, the intersection has finally been opened today after a number of months of the usual British roadworks. A picture of which can be seen below. A video can be found on a BBC news article here
It's interesting to see how a simulation has been transformed into reality, and the benefits it will bring for pedestrians through one of Europe's busiest intersections. I would also guess that the simulation certainly aided the arguments for benefits of having Oxford Circus get a revamp. I'm certain there must be many more examples that exist, where simulations aid urban planners or architects for such applications.