Construction operations can be categorized as either routine and repetitive or unique and complex. The means of developing an understanding of operations in each category differs. An understanding of routine and repetitive operations is best developed through analysis of field operations. Unique and complex operations by their very nature have not been constructed in the field. Therefore, an un...

Robotization and automation of a construction process requires engineering approaches different from those that are applicable in factory automation. Construction site differs from industrial plant in scale of operation, mobility, type of processes and the work environment. A greater intelligence, load, and force range Is needed for a construction robot. The main reasons for using robots in con...

This paper illustrates how simulation modeling and visualization can be of substantial help in studying airside airport operations, and can greatly contribute in planning and designing construction operations at airports in a way that has the least impact on airside operations. The characteristic that distinguishes the current work is the capability to model and animate airside airport operatio...

Identifying the environmental impact of construction operations would be the first step to implement environmentally sustainable construction operations. To this end, it is essential to reliably estimate the emissions from construction equipment, which account for the largest share for the total impacts of construction operations. This paper presents a methodology to integrate discrete-event si...

We use an analogue of Karoubi’s construction [4] in the motivic situation to give some cohomology operations in motivic cohomology. We prove many properties of these operations, and we show that they coincide, up to some nonzero constants, with the reduced power operations in motivic cohomology originally constructed by Voevodsky [12]. The relation of our construction to Voevodsky’s is, roughly...

This paper presents a study conducted in collaboration with large Canadian engineering, procurement and construction management (EPCM) firm to identify areas of improvement in the current process of progress reporting and forecasting project status at different targeted future dates. The study focused mainly on trending and time/Cost control of engineering, procurement and construction (EPC) pr...

Multiple Doppler radar analysis has been widely used to retrieve three-dimensional wind fields within thunderstorms and meso-scale convective systems (MCS) since the late 1960s. A number of countries have constructed dense operational radar networks, such as the Operational Programme for the Exchange of Weather Radar Information (OPERA; Köck et al., 2000), to monitor and forecast severe weather...

(ABSTRACT) Simulation modeling and visualization can substantially help in designing complex construction operations and in making optimal decisions where traditional methods prove ineffective or are unfeasible. However, there has been limited use of simulation in planning construction operations due to the unavailability of appropriate visual communication tools that can provide users with a m...

The planning of construction operations is a complicated activity involving abstraction of construction activities from the drawings, choosing of suitable plants and falseworks, allocation of resources on site, planning of safe working place for labourers, and the scheduling of activities sequence. The increasing competition among contractors demands them to adopt innovative construction method...