01043837

Component

Lane closures for highway resurfacing involve some intricate tradeoffs between the construction cost to highway agencies and the costs of delays and disruptions to motorists. Careful optimization of work zone configuration and dimensions, work schedules and traffic management plans can significantly reduce the overall costs. In addition to previously considered factors, this paper shows how the durability of the pavement and the resulting resurfacing intervals can be considered in optimizing resurfacing plans. Here we develop a work zone optimization model for multiple-lane highways with time-dependent inflows, a detour, access lanes, and time constraints as well as considering resurfacing intervals and preferred pavement thickness. The algorithm SAUASD (Simulated Annealing for Uniform Alternatives with a Single Detour) is used to find the best schedules for successive work zones. The objective is to minimize total cost, including agency cost and user cost. In our numerical examples with uniform alternatives in successive zones, thinner pavements are preferred at higher interest rates and thicker pavements are preferred at higher traffic volumes. For different priorities regarding total cost, agency cost, or user cost at different traffic levels, various resurfacing interval alternatives are recommended based on our numerical analysis.

01042056

07-1625

English

21p

2007

Transportation Research Board 86th Annual Meeting

CD-ROM

Figures (6) ; References (10) ; Tables (4)

Lane closure; Optimization; Pavement design; Pavement distress; Pavement maintenance; Pavement performance; Pavements; Resurfacing; Simulated annealing; Thickness; Time dependence; Work zone traffic control; Work zones

Highways; Operations and Traffic Management; Pavements; Planning and Forecasting; I72: Traffic and Transport Planning

Transportation Research Board Annual Meeting 2007 Paper #07-1625

TRIS, TRB

Feb 8 2007 6:17PM