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- W575607524 abstract "This study extends previous models for optimizing work zone lengths and diversion rates by analytically incorporating tradeoffs between work duration and cost. A typical time-cost tradeoff function is used in formulating a system cost objective function. Optimality conditions are derived before zone length and work rate are jointly optimized. Numerical results show that when inflows exceed the work zone capacity, user delays increase rapidly and the work rate (and cost per lane-km) also increases in order to reduce the work duration and minimize system cost. When the time-cost tradeoff is incorporated in the optimization, the optimal length does not always decrease as inflow increases; that depends on the interaction between length and variable cost. The traffic diversion fraction, another dimension of work zone optimization, is also analyzed. The optimized fraction is obtained from the envelope of lowest total cost curves. Thus, for given inflow conditions, optimal combinations of zone length, work rates, and diversion fractions can be determined." @default.
- W575607524 created "2016-06-24" @default.
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- W575607524 date "2006-01-01" @default.
- W575607524 modified "2023-09-24" @default.
- W575607524 title "Duration Versus Cost Trade-offs in Work-Zone Optimization" @default.
- W575607524 hasPublicationYear "2006" @default.
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