Two routes connect an origin-destination pair with performance functions t1 = 5+(x1/2)^2 and t2 = 7+(x2/4)^2 (with t’s i

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answerhappygod
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Two routes connect an origin-destination pair with performance functions t1 = 5+(x1/2)^2 and t2 = 7+(x2/4)^2 (with t’s i

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Two routes connect an origin-destination pair with performance
functions t1 = 5+(x1/2)^2 and t2 = 7+(x2/4)^2 (with t’s in minutes
and x’s in thousands of vehicles per hour). It is known that at
user equilibrium, 75% of the origin-destination demand takes route
1. What percentage would take route 1 if a system-optimal solution
were achieved, and how much travel time would be saved?
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