Question: 1 . ( 4 5 pts ) Two routes connect an origin - destination pair with performance functions and ( with t s in minutes

1.(45 pts) Two routes connect an origin-destination pair with performance functions and (with ts in minutes and xs in thousands of vehicles per hours). It is known that at user-equilibrium, 75% of the origin-destination demand takes route 1.
What is the total flow? (25 pts)
What percentage would take route 1 if a system-optimal solution is achieved, and how much travel time would be saved? (20 pts)

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