Simulation of asphalt paving operations under lane closure conditions: Fid-Bau Portal

Simulation of asphalt paving operations under lane closure conditions

Nassar, Khaled / Thabet, Walid / Beliveau, Yvan

AbstractLane closures during paving operations on rural two-lane roads usually restrict the continuity of paving operations, causing delay in paving time and thus affecting the production rates. This paper presents a simulation model that was developed to assess the impact of the different variables on paving operations under lane closure conditions. The model developed is a high-fidelity computer simulation that incorporates an animation interface. The model involves traffic simulation as well as the construction process itself, and allows users to study the interaction between the two. Variables such as distance from plant, number and types of trucks, traffic volume, length of lane closure, maximum allowable work zone speed, and lane closure strategies are incorporated in the model. Users of the model can adjust these variables according to any particular project and consequently measure the effect on production rates and cost. A construction-oriented discrete event simulation language, Stroboscope, was used to develop the model and a 3D animation was developed to visually simulate the construction process for visual verification. The model was then used on a case study to evaluate paving operations. Sensitivity analyses were conducted using the simulation model to investigate the effects of the different variables on productivity and cost.