2006 IEEE International Conference on Systems, Man and Cybernetics, 2006
This paper is about decision making in transport infrastructures, an area in which most often sev... more This paper is about decision making in transport infrastructures, an area in which most often several actors are involved, each with its own interests, in which decision making tries to optimize different and often conflicting criteria simultaneously, and in which decision making has to take place at different levels, distinguished by geographical extent and time scale. We distinguish several classes of solution methods. A number of cases illustrate how the solution methods are being applied in practice. There we see a tendency to combine methods and to support decision making by means of computer-based simulation, where the different levels are reflected in different simulation tools.
2008 First ITU-T Kaleidoscope Academic Conference - Innovations in NGN: Future Network and Services, 2008
Recent technological developments in the e-communications sector have lowered the threshold for u... more Recent technological developments in the e-communications sector have lowered the threshold for users of information and communication technology (ICT) to enter the virtual domains of the Internet and to start playing other roles in society. ICT users have shifted their role from passive receivers of information and media content towards an active role in becoming producers, like in user generated content, or owners of infrastructure components, like in WiFi hotspots. The end user is not 'just' end user anymore. The trend in technological innovations undoubtedly will encourage this role shifting even further. This raises policy issues such as for the governance of privately held components of publicly accessible infrastructures and such as issues of privacy and security in virtual worlds. These policy issues have a decentralized character that escapes formerly successful central policy arrangements. We claim that policy arrangements should explicitly include a role for end user participation and take the role for technology into account. Coordination mechanisms in Open Software Development are presented as a first starting point towards innovative policy arrangements.
2011 14th International IEEE Conference on Intelligent Transportation Systems (ITSC), 2011
In this study, a multi-phase time series prediction approaches is proposed for solving the motorw... more In this study, a multi-phase time series prediction approaches is proposed for solving the motorway flow forecasting problem. The schemes presented here is based on an extensive study of flow patterns that were collected from a densely used ring road of Amsterdam, The Netherlands. The new prediction approach proposed here is based on a multiphase information extraction whose ultimate goal is to forecast traffic states at the boundary points of a network. With its simple architecture that makes the proposed approach of interest of practical application, a significant improvement is achieved in comparison with existing models. In its general form, the proposed approach could handle the curse of dimensionality, a common problem associated with the number of dimensions of input space.
2010 IEEE International Conference on Systems, Man and Cybernetics, 2010
In the Netherlands, the common approach for road network traffic control is top-down control by a... more In the Netherlands, the common approach for road network traffic control is top-down control by applying so-called scenarios. However, when the number of scenarios are getting larger, operators are not able to handle. In this paper, we will present an approach to improve the scenario-based control from a bottom-up approach by using so-called scenario coordination module. The bottom-up approach introduces a set of agents called buildingblocks. A road network can be divided into several subnetworks and each subnetwork can be divided into several buildingblocks. The combination of buildingblocks can represent a scenario. Moreover, they can communicate with each other and try to resolve the conflicts by themselves. By using this approach, the scenario-based top-down control becomes more dynamic, flexible and more adaptive to the current traffic pattern. It improves the performance of the topdown control. This approach has been applied in the operational traffic control system for the Dutch city of Amsterdam. It was developed at the Dutch traffic management company Trinité Automation B.V.
The complexity of current software-intensive systems must be tackled during all phases of the sys... more The complexity of current software-intensive systems must be tackled during all phases of the system life cycle. Requirements Engineering is considered both by practitioners and researchers a crucial phase of software development. This article tackles requirements complexity by proposing a framework to document and analyze requirements at different levels of detail, inspired by the layered style of software architecture. Therefore, separation of concerns, an important concept used for software design, is applied in the context of requirements documentation and analysis. The framework has been applied in practice to design software-intensive systems in many domains. Specifically for this article, the proposal is to apply the framework to document and to analyze requirements for road traffic management systems.
2006 IEEE International Conference on Systems, Man and Cybernetics, 2006
This paper is about decision making in transport infrastructures, an area in which most often sev... more This paper is about decision making in transport infrastructures, an area in which most often several actors are involved, each with its own interests, in which decision making tries to optimize different and often conflicting criteria simultaneously, and in which decision making has to take place at different levels, distinguished by geographical extent and time scale. We distinguish several classes of solution methods. A number of cases illustrate how the solution methods are being applied in practice. There we see a tendency to combine methods and to support decision making by means of computer-based simulation, where the different levels are reflected in different simulation tools.
2008 First ITU-T Kaleidoscope Academic Conference - Innovations in NGN: Future Network and Services, 2008
Recent technological developments in the e-communications sector have lowered the threshold for u... more Recent technological developments in the e-communications sector have lowered the threshold for users of information and communication technology (ICT) to enter the virtual domains of the Internet and to start playing other roles in society. ICT users have shifted their role from passive receivers of information and media content towards an active role in becoming producers, like in user generated content, or owners of infrastructure components, like in WiFi hotspots. The end user is not 'just' end user anymore. The trend in technological innovations undoubtedly will encourage this role shifting even further. This raises policy issues such as for the governance of privately held components of publicly accessible infrastructures and such as issues of privacy and security in virtual worlds. These policy issues have a decentralized character that escapes formerly successful central policy arrangements. We claim that policy arrangements should explicitly include a role for end user participation and take the role for technology into account. Coordination mechanisms in Open Software Development are presented as a first starting point towards innovative policy arrangements.
2011 14th International IEEE Conference on Intelligent Transportation Systems (ITSC), 2011
In this study, a multi-phase time series prediction approaches is proposed for solving the motorw... more In this study, a multi-phase time series prediction approaches is proposed for solving the motorway flow forecasting problem. The schemes presented here is based on an extensive study of flow patterns that were collected from a densely used ring road of Amsterdam, The Netherlands. The new prediction approach proposed here is based on a multiphase information extraction whose ultimate goal is to forecast traffic states at the boundary points of a network. With its simple architecture that makes the proposed approach of interest of practical application, a significant improvement is achieved in comparison with existing models. In its general form, the proposed approach could handle the curse of dimensionality, a common problem associated with the number of dimensions of input space.
2010 IEEE International Conference on Systems, Man and Cybernetics, 2010
In the Netherlands, the common approach for road network traffic control is top-down control by a... more In the Netherlands, the common approach for road network traffic control is top-down control by applying so-called scenarios. However, when the number of scenarios are getting larger, operators are not able to handle. In this paper, we will present an approach to improve the scenario-based control from a bottom-up approach by using so-called scenario coordination module. The bottom-up approach introduces a set of agents called buildingblocks. A road network can be divided into several subnetworks and each subnetwork can be divided into several buildingblocks. The combination of buildingblocks can represent a scenario. Moreover, they can communicate with each other and try to resolve the conflicts by themselves. By using this approach, the scenario-based top-down control becomes more dynamic, flexible and more adaptive to the current traffic pattern. It improves the performance of the topdown control. This approach has been applied in the operational traffic control system for the Dutch city of Amsterdam. It was developed at the Dutch traffic management company Trinité Automation B.V.
The complexity of current software-intensive systems must be tackled during all phases of the sys... more The complexity of current software-intensive systems must be tackled during all phases of the system life cycle. Requirements Engineering is considered both by practitioners and researchers a crucial phase of software development. This article tackles requirements complexity by proposing a framework to document and analyze requirements at different levels of detail, inspired by the layered style of software architecture. Therefore, separation of concerns, an important concept used for software design, is applied in the context of requirements documentation and analysis. The framework has been applied in practice to design software-intensive systems in many domains. Specifically for this article, the proposal is to apply the framework to document and to analyze requirements for road traffic management systems.
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Papers by Jos Vrancken