Asphalt Pavement Rehabilitation can be recognized as a highly intricate and complex process involving surface preparation and the construction of three asphalt layers. Firstly, the sub-base course is prepared using aggregate. Secondly, the base course is composed of aggregate and binder. Thirdly, the surface course consists of hot mix asphalt that is produced in production plants and supplied from multiple suppliers, transported by trucks, and spread evenly by pavers. Subsequently, compactors are employed to ensure a uniform surface with skid resistance and enduring evenness, ensuring high stability and wear resistance. The process necessitates meticulous consideration of various factors, including hopper emptying, delivery time of asphalt, truck travel time, and optimal paver utilization. This paper introduces a simulation model comprising three modules: road network extraction, road construction flow, and construction sequence simulation. The initial module, road network extraction, initiates with the extraction of roads and intersections, incorporating their widths, lengths, and other geometric details. This network is then mapped into a priority matrix, delineating the intricate relationships between different roads. The second module, road construction flow, concentrates on generating a construction flow model, defining the sequencing of the road network construction under study. The third module construction sequence simulation simulates the generated sequence from module number two, utilizing discrete events simulation for simulating the pavement process and agent-based simulation for efficient resource management. Taking into consideration the lead time required by suppliers to deliver materials. Finally, this comprehensive framework undergoes rigorous validation through a meticulous case study conducted in a residential neighborhood.

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Simulation of Asphalt Pavement Rehabilitation in a Densely Populated Area

  • Abdelaziz Marwa,
  • Essawy Yasmeen,
  • Nassar Khaled

摘要

Asphalt Pavement Rehabilitation can be recognized as a highly intricate and complex process involving surface preparation and the construction of three asphalt layers. Firstly, the sub-base course is prepared using aggregate. Secondly, the base course is composed of aggregate and binder. Thirdly, the surface course consists of hot mix asphalt that is produced in production plants and supplied from multiple suppliers, transported by trucks, and spread evenly by pavers. Subsequently, compactors are employed to ensure a uniform surface with skid resistance and enduring evenness, ensuring high stability and wear resistance. The process necessitates meticulous consideration of various factors, including hopper emptying, delivery time of asphalt, truck travel time, and optimal paver utilization. This paper introduces a simulation model comprising three modules: road network extraction, road construction flow, and construction sequence simulation. The initial module, road network extraction, initiates with the extraction of roads and intersections, incorporating their widths, lengths, and other geometric details. This network is then mapped into a priority matrix, delineating the intricate relationships between different roads. The second module, road construction flow, concentrates on generating a construction flow model, defining the sequencing of the road network construction under study. The third module construction sequence simulation simulates the generated sequence from module number two, utilizing discrete events simulation for simulating the pavement process and agent-based simulation for efficient resource management. Taking into consideration the lead time required by suppliers to deliver materials. Finally, this comprehensive framework undergoes rigorous validation through a meticulous case study conducted in a residential neighborhood.