Example Networks3: Maximum Flow and Minimum Cut Problem

During peak traffic hours, many cars are travelling from a downtown parkade to the nearest freeway on-ramp.  The traffic engineers have decided to widen roads downtown to accomodate this heavy flow of cars traveling between these two points.  Which roads should the engineers widen in order to achieve this goal?

Below is a network that shows the roads connecting the parkade, node A, to the freeway on-ramp, node G.  The arcs are labeled with their directional flow.
ie: This shows that A to B has a capacity of 5, while B to A has a capacity of 0.
 
Press the Start button twice to begin the example and find out which roads should be widened.