Towards real-time simulation of construction activities considering spatio-temporal resolution requirements for improving safety and productivity

Traditional simulation models use statistical data to estimate task durations. However, to make the simulation results more realistic and reflecting the changes during the task execution, real-time simulation has been suggested by several researchers. On the other hand, little consideration is given to spatio-temporal constraints in simulation models. Several spatial modeling methods, such as maps, grids and 3D models, have been used in construction simulation. However, different resolutions of spatio-temporal representations should be used based on the specific requirements when considering spatio-temporal conflicts. The present paper aims to propose the basic concept of real-time simulation of construction activities considering spatio-temporal resolution requirements for improving safety and productivity. The objectives of the paper are: (1) to review real-time simulation methods of construction activities considering spatio-temporal conflicts; (2) to investigate the spatio-temporal requirements in the real-time simulation environment; and (3) to investigate the integration of simulation models at different spatio-temporal resolutions.