Pelimoottorin hyödyntäminen simuloinnin visualisoinnissa

Modern game engines provide software developers with comprehensive toolsets for turning their visions into visually appealing 3D worlds. In addition to gaming industry, these frameworks can be used in creating visualizations for real-world processes. In this thesis, the concept of game engine based industrial process visualization is demonstrated in the context of automated container terminals. During the thesis project, a real-time 3D visualization tool was developed that can be used to visualize simulated terminals and actual systems. The work was commissioned by a Finnish client company, working in the cargo handling industry. The thesis document comprises of a background part and a solution part. In the background part, the most important concepts of container terminal operations are presented. The focus is then moved to the software systems that are used in the automated terminals provided by the client company. The background part contains also a review of the existing 3D applications in the container handling industry and a literature survey of various other projects, which are utilizing game engines for simulation purposes. For the practical part, a requirements analysis was performed for the visualization tool. The development platform was then chosen by comparing two of the most commonly used modern game engines: Unity and Unreal Engine. While both of the engines had their advantages and disadvantages, Unity was chosen as the development platform for several reasons: It allowed using the existing 3D models of the client company without doing any manual conversions to the files. The object model and scripting system of Unity was also regarded as intuitive and easy to use. Finally, the software framework used in Unity allowed easy integration with the software systems of the client company. The implemented application is configured by using similar XML files that are used in GUI applications of actual terminals. It communicates with the terminal automation system by using the common communication platform. Machine positions and container events are acquired real-time from the automation system. It was also proven, that the application can be extended to send messages back to the automation system. The solution was tested with a virtual container terminal, including 10,000 containers and 47 container handling machines. It was confirmed, that the application is able to handle large amount of concurrent movement without problems. However, the vast amount of objects in the terminal makes the visualization of the whole area a challenging task for a conventional PC. Further graphical optimization is required in order to provide sufficient frame rate and smooth animation in all situations

Access management for road hauliers and rail operators in intermodal freight terminals

A pivotal element in the transport industry, intermodal freight transport, is rather complex due to the numerous transport modes and actors involved. Terminal operators in intermodal freight transport face major challenges to provide seamless flows of containers via their terminals. Seamless flows are achievable by bridging gaps between large-scale transport operators (e.g. shipping lines) and small-scale transport operators (e.g. road hauliers and rail operators). Effective access processes can not only bridge those gaps but also contribute to decreasing turnaround times for trucks and trains. By applying the access processes, small-scale transport operators can receive access to specific resources in terminals. An effective access process can be achieved when transport resources (e.g. trucks and truck drivers) can be managed together with terminal resources (e.g. straddle carriers and straddle carrier drivers). In this thesis, such management is termed access management, defined as managing the process by which actors access resources at terminals. Guided by that concept, the thesis seeks to increase the understanding of how access management for road hauliers and rail operators in intermodal freight terminals can contribute to decreasing turnaround times for trucks and trains.The thesis is a compilation of five papers reporting studies that involved literature reviews, interviews, focus groups, participant observations and time measurements. Whereas the literature reviews focused on the topics of access management and information exchange, the collected data were analysed by implementing several analytical frameworks developed for the thesis. The results of using those frameworks clarified how effective access to resources at intermodal freight terminals can be managed, especially by explaining four dynamics: (1) how different information services can contribute to decreasing turnaround times for trucks and trains, (2) how those services can affect activity performance and resource utilisation, (3) how the required and most relevant attributes of information can be exchanged in real time among actors involved and (4) how and when such attributes need to be automatically collected and exchanged. Following from those results, the chief finding is that terminal operators can effectively manage transport and terminal processes, as well as decrease turnaround for trucks and trains, by using access management services that allow exchanging information in real time. From the empirical findings of the studies conducted, six propositions are formulated and justified

Proceedings, MSVSCC 2013

Proceedings of the 7th Annual Modeling, Simulation & Visualization Student Capstone Conference held on April 11, 2013 at VMASC in Suffolk, Virginia

Department of Defense Dictionary of Military and Associated Terms

The Joint Publication 1-02, Department of Defense Dictionary of Military and Associated Terms sets forth standard US military and associated terminology to encompass the joint activity of the Armed Forces of the United States. These military and associated terms, together with their definitions, constitute approved Department of Defense (DOD) terminology for general use by all DOD components

MODELLING CONTAINER LOGISTICS PROCESSES IN CONTAINER TERMINALS: A CASE STUDY IN ALEXANDRIA

This study aims to optimize the logistics processes of container terminals. Potentially powerful pipe-flow models of container terminal logistics processes have been neglected to date and modelling of terminals is rare. Because research which adopts a pipe flow and dynamic operational perspective is rare, a case application in Alexandria, Egypt collated empirical container and information flows using interviews and company records to describe its logistics processes and model container and information flows. The methodology used includes qualitative and quantitative methods and a descriptive methodology proceeds sequentially. Primary and secondary data were presented as a pipe flow model to show interrelations between the company’s resources and to identify bottlenecks. Simulation modelling used Simul8 software. Operational level modelling of both import and export flows simulated the actual inbound and outbound flows of containers from entry to exit. The import logistics process includes activities such as unloading vessels by quay cranes, moving containers by tractors to yard cranes to go for storage where customs procedures take place before exiting the terminal by customer’s truck. The export logistics process includes the activities associated with customers’ trucks, lifters, storage yards, tractors and quay cranes. The model takes into account the uncertainties in each activity. This study focuses on operational aspects rather than cost issues, and considers container flows rather than vessel flows. Although the simulated model was not generalized, implementation elsewhere is possible. Following successful validation of a base simulation model which reproduces the case company’s historical scenario, scenario testing empowered the case company to pro-actively design and test the impact of operational changes on the entire logistics process. The study evaluates a typical container terminal logistics system including both import and export containers in the presence of multiple uncertainties in terminal operations (e.g. quay crane operations, tractor operations, yard crane operations). Sensitivity testing and scenario analysis can empower terminal managers to make decisions to improve performance, and to guide terminal planners, managers, and operators in testing future investment scenarios before implementation.Arab Academy for Science, Technology and Maritime Transpor

Practices of Speculation: Modeling, Embodiment, Figuration

This volume offers innovative ways to think about speculation at a time when anticipation of catastrophe in an apocalyptic mode is the order of the day and shapes public discourse on a global scale. It maps an interdisciplinary field of investigation: the chapters interrogate hegemonic ways of shaping the present through investments in the future, while also looking at speculative practices that reveal transformative potential. The twelve contributions explore concrete instances of envisioning the open unknown and affirmative speculative potentials in history, literature, comics, computer games, mold research, ecosystem science and artistic practice

Practices of Speculation

This volume offers innovative ways to think about speculation at a time when anticipation of catastrophe in an apocalyptic mode is the order of the day and shapes public discourse on a global scale. It maps an interdisciplinary field of investigation: the chapters interrogate hegemonic ways of shaping the present through investments in the future, while also looking at speculative practices that reveal transformative potential. The twelve contributions explore concrete instances of envisioning the open unknown and affirmative speculative potentials in history, literature, comics, computer games, mold research, ecosystem science and artistic practice