Learn More
A Spatial Query Language enables the spatial analysis of Building Information Models and the extraction of partial models that fulfill certain spatial constraints. Among other features, the developed spatial query language includes topological operators, i.e. operators that reflect the topological relationships between 3D spatial objects. The paper presents(More)
This paper presents a novel methodology which assists in automating the generation of time schedules for bridge construction projects. The method is based on a simulation of construction works, taking into account the available resources and the interdependencies between individual tasks. The simulation is realized by means of a discrete-event simulation(More)
For the spatial design of buildings as well as for the layout of large event areas, the 9 crowd behaviour of the future users plays a significant role. The designing engineer has to make 10 sure that potentially critical situations, such as high densities in pedestrian crowds, are avoided in 11 order to guarantee the integrity, safety and comfort of the(More)
Keywords: Building information modeling 3D spatial query language Topology Boundary representation QL4BIM a b s t r a c t Building Information Models (BIM) are comprehensive digital representations of buildings, which provide a large set of information originating from the different disciplines involved in the design, construction and operation processes.(More)
The planning of large infrastructure facilities such as inner-city subway tracks requires the consideration of widely differing scales, ranging from the kilometer scale for the general routing of the track down to the centimeter scale for detailed design of connection points. On the one hand this implies the utilization of both, Geographic Information(More)
The planning of large infrastructure projects such as inner-city subway tracks is a highly collaborative process in which numerous experts from different domains are involved. While performing the planning task, widely differing scales have to be taken into consideration, ranging from the kilometer scale for the general routing of the track down to the(More)