Pub Date : 2008-11-01DOI: 10.1109/INFRA.2008.5439655
G. Verbong, F. Geels
This paper analyses sustainability transitions in the electricity sector. Using a Multi Level Perspective on transitions, three transition pathways are briefly elaborated and indications for the consequences for the infrastructure are given. The transformation pathway is characterised by a further hybridisation of the infrastructure; in the reconfiguration pathway, internationalisation and scale increase in renewable generation can lead to the emergence of a Supergrid. The de-alignment and re-alignment pathway is dominated by distributed generation and a focus on more local infrastructures. This pathway involves a major restrcuturing of the electricity system, but our conclusion is that this pathway is less likely than the other two. The de-alignment and re-alignment pathway is therefore more dependent on external developments and/or strong policy interventions. However, in all pathways major investments in infrastructure and innovative technologies are needed.
{"title":"Pathways for sustainability transitions in the electricity sector: Multi-level analysis and empirical illustration","authors":"G. Verbong, F. Geels","doi":"10.1109/INFRA.2008.5439655","DOIUrl":"https://doi.org/10.1109/INFRA.2008.5439655","url":null,"abstract":"This paper analyses sustainability transitions in the electricity sector. Using a Multi Level Perspective on transitions, three transition pathways are briefly elaborated and indications for the consequences for the infrastructure are given. The transformation pathway is characterised by a further hybridisation of the infrastructure; in the reconfiguration pathway, internationalisation and scale increase in renewable generation can lead to the emergence of a Supergrid. The de-alignment and re-alignment pathway is dominated by distributed generation and a focus on more local infrastructures. This pathway involves a major restrcuturing of the electricity system, but our conclusion is that this pathway is less likely than the other two. The de-alignment and re-alignment pathway is therefore more dependent on external developments and/or strong policy interventions. However, in all pathways major investments in infrastructure and innovative technologies are needed.","PeriodicalId":207041,"journal":{"name":"2008 First International Conference on Infrastructure Systems and Services: Building Networks for a Brighter Future (INFRA)","volume":"261 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123362418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-11-01DOI: 10.1109/INFRA.2008.5439645
M. Snelder, B. Immers, H. V. van Zuylen
In this paper the importance of alternative routes for the robustness of a road network is examined. A case study for the area of Rotterdam in the Netherlands showed that if nobody is informed about an incident on the motorways and/or nobody has the opportunity to change their routes, delays of more than one hour can easily occur. Furthermore, it was demonstrated that it is beneficial to have at least 1 route alternative, but that multiple route alternatives are not strictly.
{"title":"The importance of alternative routes for the robustness of a road network","authors":"M. Snelder, B. Immers, H. V. van Zuylen","doi":"10.1109/INFRA.2008.5439645","DOIUrl":"https://doi.org/10.1109/INFRA.2008.5439645","url":null,"abstract":"In this paper the importance of alternative routes for the robustness of a road network is examined. A case study for the area of Rotterdam in the Netherlands showed that if nobody is informed about an incident on the motorways and/or nobody has the opportunity to change their routes, delays of more than one hour can easily occur. Furthermore, it was demonstrated that it is beneficial to have at least 1 route alternative, but that multiple route alternatives are not strictly.","PeriodicalId":207041,"journal":{"name":"2008 First International Conference on Infrastructure Systems and Services: Building Networks for a Brighter Future (INFRA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130031526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-11-01DOI: 10.1109/INFRA.2008.5439636
W. Lemstra
From research into the co-evolution of technology and institutions in the electricity sector system functions and coordination mechanisms have been identified as essential for the overall system integrity. When intervention in the autonomous development of the sector is being considered, e.g., through liberalization, their execution needs to be assured through institutional and/or technological means. Hence, a certain degree of coherence between technological and institutional arrangements needs to be safeguarded. In this contribution we report in summary form on the applicability of the coherence hypothesis for the electronic communications sector. We explore the co-evolution of the voice network (PSTN) and the data network (Internet), and assess the implications of the Telecom Reform as an deliberate intervention in the development process. We conclude that for the sector the coherence hypothesis can neither be accepted, nor rejected. What appears to distinguish the sectors are the attributes of the products/services provided, and the characteristics of the design regime applied. Identifiers are categorized as being coordination critical.
{"title":"Telecom and the Internet: Assessing the necessary degree of coherence between technology and institutions","authors":"W. Lemstra","doi":"10.1109/INFRA.2008.5439636","DOIUrl":"https://doi.org/10.1109/INFRA.2008.5439636","url":null,"abstract":"From research into the co-evolution of technology and institutions in the electricity sector system functions and coordination mechanisms have been identified as essential for the overall system integrity. When intervention in the autonomous development of the sector is being considered, e.g., through liberalization, their execution needs to be assured through institutional and/or technological means. Hence, a certain degree of coherence between technological and institutional arrangements needs to be safeguarded. In this contribution we report in summary form on the applicability of the coherence hypothesis for the electronic communications sector. We explore the co-evolution of the voice network (PSTN) and the data network (Internet), and assess the implications of the Telecom Reform as an deliberate intervention in the development process. We conclude that for the sector the coherence hypothesis can neither be accepted, nor rejected. What appears to distinguish the sectors are the attributes of the products/services provided, and the characteristics of the design regime applied. Identifiers are categorized as being coordination critical.","PeriodicalId":207041,"journal":{"name":"2008 First International Conference on Infrastructure Systems and Services: Building Networks for a Brighter Future (INFRA)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114053675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-11-01DOI: 10.1109/INFRA.2008.5439660
K. B. Salling, D. Banister
The scope of this paper is to present a newly developed decision support model to assess transport infrastructure projects: CBA-DK. The model makes use of conventional cost-benefit analysis resulting in aggregated single point estimates and quantitative risk analysis using Monte Carlo simulation resulting in interval results. The embedded uncertainties within traditional CBA such as ex-ante based investment costs and travel time savings are of particular concern. The methodological approach has been to apply suitable probability distribution functions on the uncertain parameters, thus resulting in feasibility risk assessment moving from point to interval results. Decision support as illustrated in this paper aims to provide assistance in the development and ultimately the choice of action while accounting for the uncertainties surrounding transport appraisal schemes. The modeling framework is illustrated by the use of a case study appraising airport and runway alternatives in the capital of Greenland - Nuuk. This study has been conducted in corporation with the Home Rule Authorities of Greenland.
{"title":"Assessment of large transport infrastructure projects: The CBA-DK model","authors":"K. B. Salling, D. Banister","doi":"10.1109/INFRA.2008.5439660","DOIUrl":"https://doi.org/10.1109/INFRA.2008.5439660","url":null,"abstract":"The scope of this paper is to present a newly developed decision support model to assess transport infrastructure projects: CBA-DK. The model makes use of conventional cost-benefit analysis resulting in aggregated single point estimates and quantitative risk analysis using Monte Carlo simulation resulting in interval results. The embedded uncertainties within traditional CBA such as ex-ante based investment costs and travel time savings are of particular concern. The methodological approach has been to apply suitable probability distribution functions on the uncertain parameters, thus resulting in feasibility risk assessment moving from point to interval results. Decision support as illustrated in this paper aims to provide assistance in the development and ultimately the choice of action while accounting for the uncertainties surrounding transport appraisal schemes. The modeling framework is illustrated by the use of a case study appraising airport and runway alternatives in the capital of Greenland - Nuuk. This study has been conducted in corporation with the Home Rule Authorities of Greenland.","PeriodicalId":207041,"journal":{"name":"2008 First International Conference on Infrastructure Systems and Services: Building Networks for a Brighter Future (INFRA)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116504104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-11-01DOI: 10.1109/INFRA.2008.5439671
R. Negenborn, B. de Schutter
Water networks are large-scale systems, consisting of many interacting components. They are currently typically operated by local decentralized controllers which receive setpoints from human operators. We discuss how communication among the local controllers can be included and in particular propose the use of distributed model predictive control for enabling the local controllers to determine setpoints autonomously using communication and coordination. We consider the control of a particular class of water networks, viz. irrigation canals. A simulation study on a 7-reach irrigation canal illustrates the potential of the proposed approach.
{"title":"A distributed model predictive control approach for the control of irrigation canals","authors":"R. Negenborn, B. de Schutter","doi":"10.1109/INFRA.2008.5439671","DOIUrl":"https://doi.org/10.1109/INFRA.2008.5439671","url":null,"abstract":"Water networks are large-scale systems, consisting of many interacting components. They are currently typically operated by local decentralized controllers which receive setpoints from human operators. We discuss how communication among the local controllers can be included and in particular propose the use of distributed model predictive control for enabling the local controllers to determine setpoints autonomously using communication and coordination. We consider the control of a particular class of water networks, viz. irrigation canals. A simulation study on a 7-reach irrigation canal illustrates the potential of the proposed approach.","PeriodicalId":207041,"journal":{"name":"2008 First International Conference on Infrastructure Systems and Services: Building Networks for a Brighter Future (INFRA)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134446837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-11-01DOI: 10.1109/INFRA.2008.5439662
J. van den Top, B. Steenhuisen
Managers as well as researchers meet the same ambiguity in the traffic control practices inside ProRail. The rail system shows a high number of dynamic interdependencies. Operators respond to it with low structured and sometimes contradictory practices. In the meanwhile, myriads of tradeoffs occur for critical values among which safety and reliability. Current practices do not show a clear model that explains how operators cooperate. The efforts to manage, regulate and innovate traffic control practices should be found on a thorough understanding of the actual practices and problems. These problems, however, tend to be paradoxical. We reflect on `how to improve' after empirically making sense of the ambiguously structured practices at ProRail.
{"title":"Understanding ambiguously structured traffic control practices at ProRail","authors":"J. van den Top, B. Steenhuisen","doi":"10.1109/INFRA.2008.5439662","DOIUrl":"https://doi.org/10.1109/INFRA.2008.5439662","url":null,"abstract":"Managers as well as researchers meet the same ambiguity in the traffic control practices inside ProRail. The rail system shows a high number of dynamic interdependencies. Operators respond to it with low structured and sometimes contradictory practices. In the meanwhile, myriads of tradeoffs occur for critical values among which safety and reliability. Current practices do not show a clear model that explains how operators cooperate. The efforts to manage, regulate and innovate traffic control practices should be found on a thorough understanding of the actual practices and problems. These problems, however, tend to be paradoxical. We reflect on `how to improve' after empirically making sense of the ambiguously structured practices at ProRail.","PeriodicalId":207041,"journal":{"name":"2008 First International Conference on Infrastructure Systems and Services: Building Networks for a Brighter Future (INFRA)","volume":"23 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134053663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-11-01DOI: 10.1109/INFRA.2008.5439659
I. N. Fovino, M. Masera
Industry, in parallel with a pervasive use of information and communication technologies, has begun in the last years to take into consideration the use of public information infrastructures (including the Internet) for remotely monitoring, managing and maintaining their technical systems. Concurrently, private and public networks are used for interconnecting technical and business information systems. As a result, industry is increasingly exposed to internal and external cyber-threats, and the security of the ICT infrastructures assumes a predominant relevance. A security assessment methodology, tailored for ICT industrial systems, has been recently developed in order to address such problem. In this paper we present InSAW, a software tool we have developed to implement such methodology in order to help the analysts in modeling and analyze under a security perspective, complex critical systems.
{"title":"InSAW-Industrial Security Assessment Workbench","authors":"I. N. Fovino, M. Masera","doi":"10.1109/INFRA.2008.5439659","DOIUrl":"https://doi.org/10.1109/INFRA.2008.5439659","url":null,"abstract":"Industry, in parallel with a pervasive use of information and communication technologies, has begun in the last years to take into consideration the use of public information infrastructures (including the Internet) for remotely monitoring, managing and maintaining their technical systems. Concurrently, private and public networks are used for interconnecting technical and business information systems. As a result, industry is increasingly exposed to internal and external cyber-threats, and the security of the ICT infrastructures assumes a predominant relevance. A security assessment methodology, tailored for ICT industrial systems, has been recently developed in order to address such problem. In this paper we present InSAW, a software tool we have developed to implement such methodology in order to help the analysts in modeling and analyze under a security perspective, complex critical systems.","PeriodicalId":207041,"journal":{"name":"2008 First International Conference on Infrastructure Systems and Services: Building Networks for a Brighter Future (INFRA)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122284228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-11-01DOI: 10.1109/INFRA.2008.5439577
E. Pruyt, W. Thissen, I. Meijer
In this paper, a conceptual framework for integrated uncertainty analysis is developed. The goal of the framework is to help identify all sorts of uncertainties in an integrated way and to assist the development of strategies to deal with major uncertainties, acknowledging that a significant part of the uncertainties cannot easily be eliminated and that policy and management strategies need to be developed to explicitly take this into account. The framework is applied to the energy system in order to identify uncertainties related to the future development of the energy infrastructure system, and to analyse and assess the possible impact and importance of the various uncertainties, and to find strategies to deal with them.
{"title":"Integrated uncertainty analysis for dealing with uncertainties in sustainability-led energy infrastructure transitions","authors":"E. Pruyt, W. Thissen, I. Meijer","doi":"10.1109/INFRA.2008.5439577","DOIUrl":"https://doi.org/10.1109/INFRA.2008.5439577","url":null,"abstract":"In this paper, a conceptual framework for integrated uncertainty analysis is developed. The goal of the framework is to help identify all sorts of uncertainties in an integrated way and to assist the development of strategies to deal with major uncertainties, acknowledging that a significant part of the uncertainties cannot easily be eliminated and that policy and management strategies need to be developed to explicitly take this into account. The framework is applied to the energy system in order to identify uncertainties related to the future development of the energy infrastructure system, and to analyse and assess the possible impact and importance of the various uncertainties, and to find strategies to deal with them.","PeriodicalId":207041,"journal":{"name":"2008 First International Conference on Infrastructure Systems and Services: Building Networks for a Brighter Future (INFRA)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130056389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-11-01DOI: 10.1109/INFRA.2008.5439594
M. Fijnvandraat
In the process of upgrading of broadband networks, operators are confronted with several risks and uncertainties. In this paper, we will map risks and uncertainties in broadband decision-making and classify the risks and uncertainties to nature, level, and source. Classification into nature and level are measured by means of quantitative research, comprising an international survey among 87 experts, originating from fourteen countries worldwide. To manage these risk and uncertainties several methods can be applied. The preference of operators for risk and uncertainty decreasing methods are also investigated in our research.
{"title":"How to deal with risk and uncertainty in the decision-making process on broadband roll out","authors":"M. Fijnvandraat","doi":"10.1109/INFRA.2008.5439594","DOIUrl":"https://doi.org/10.1109/INFRA.2008.5439594","url":null,"abstract":"In the process of upgrading of broadband networks, operators are confronted with several risks and uncertainties. In this paper, we will map risks and uncertainties in broadband decision-making and classify the risks and uncertainties to nature, level, and source. Classification into nature and level are measured by means of quantitative research, comprising an international survey among 87 experts, originating from fourteen countries worldwide. To manage these risk and uncertainties several methods can be applied. The preference of operators for risk and uncertainty decreasing methods are also investigated in our research.","PeriodicalId":207041,"journal":{"name":"2008 First International Conference on Infrastructure Systems and Services: Building Networks for a Brighter Future (INFRA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126312237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-11-01DOI: 10.1109/INFRA.2008.5439680
S. Tahmasseby, N. V. Oort, R. Nes
This research deals with a public transport network design methodology that accounts for reliability and robustness of urban public transport service networks by considering impacts of stochastic events on networks. The study shows the role of infrastructures such as bypasses to improve public transport network robustness. This methodology is applied in a case study: the tram network in city of The Hague. Results show a sensible improvement in network connectivity reliability as well as travel costs.
{"title":"The role of infrastructures on public transport service reliability","authors":"S. Tahmasseby, N. V. Oort, R. Nes","doi":"10.1109/INFRA.2008.5439680","DOIUrl":"https://doi.org/10.1109/INFRA.2008.5439680","url":null,"abstract":"This research deals with a public transport network design methodology that accounts for reliability and robustness of urban public transport service networks by considering impacts of stochastic events on networks. The study shows the role of infrastructures such as bypasses to improve public transport network robustness. This methodology is applied in a case study: the tram network in city of The Hague. Results show a sensible improvement in network connectivity reliability as well as travel costs.","PeriodicalId":207041,"journal":{"name":"2008 First International Conference on Infrastructure Systems and Services: Building Networks for a Brighter Future (INFRA)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121262299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：