Research Initiation Award: Modeling Time and Space for the Integration of Construction Planning, Scheduling, and Site Layout Design

通常在计划和调度中执行活动排序、确定活动持续时间和向活动分配资源；布置现场临时设施。然而，很明显，空间的可用性及其时间极大地影响了活动的相互作用。这种相互作用是现场管理人员解决的许多问题的基础（例如，承包商之间对主要空间的竞争，设备移动期间的路径干扰）。这些例子表明，详细的施工计划、时间表和布局必须作为变量共享时间和空间。然而，空间（有时甚至是时间）在迄今为止开发的大多数规划和调度程序中完全被忽略，而布局的时间变化在大多数布局程序中被忽略。PI声称，开发一个将时间和空间明确考虑在内的项目将极大地增强施工管理模型的现实性，并将有助于计划者、调度程序和布局工具的有效集成。PI将在黑板专家系统架构中开发一个集成的规划-布局系统。单独的原型已经证明了这样一个系统在概念上是可实现的，但实施实验将确定其计算可行性。该研究还将实现分布式规划和布局系统，交换信息，并将其与完全集成的系统进行对比，以评估集成与分布的成本/收益。

Sequencing activities, determining activity durations, and allocating resources to activities are typically performed in planning and scheduling; locating temporary facilities on site in layout. It is clear, however, that space availability and its timing greatly affect activity interaction. This interaction is primordial to many problems addressed by site managers (e.g. competition for prime space between contractors, path interference during equipment movement). These examples show that detailed construction plans, schedules, and layout necessarily share time and space as variables. However space (and sometimes even time) is ignored entirely in most planners and schedulers developed to date, while temporal variation of the layout is ignored in most layout programs. PI claims that developing a program taking time as well as space explicitly into account would greatly enhance the realism of construction management models, and would contribute to the effective integration of planners, schedulers, and layout tools. PI will develop an integrated planning-layout system in a blackboard expert system architecture. Separate prototypes have demonstrated that such a system is conceptually realizable, but implementation experiments will determine its computational feasibility. The research will also implement distributed planning and layout systems that exchange information, and contrast that implementation with the fully-integrated system in order to assess the costs/benefits of integration vs. distribution.