This paper presents a hybrid transport modal choice model in which the genetic algorithm is appli... more This paper presents a hybrid transport modal choice model in which the genetic algorithm is applied for estimating parameters of a Multinomial Logit Model. The model has a simple decision structure which requires relatively modest computational capabilities and time to ...
The Resilient Organisations research programme aims to improve the resilience of New Zealand orga... more The Resilient Organisations research programme aims to improve the resilience of New Zealand organisations to major hazard events. Organisations manage, maintain and operate our infrastructure, create our economy and contribute to our society. The ability of organisations to respond effectively following a hazard event will have a large influence on the length of time that essential services are unavailable, and ultimately how well our communities cope with major disaster. Particular aspects of organisational response and recovery focused on by the research team include: how organisations plan for hazard events, their ability to direct resources effectively during crises, and the legal and contractual frameworks within which they will need to operate.
Understanding individual modal choice decisions is fundamental when developing and planning trans... more Understanding individual modal choice decisions is fundamental when developing and planning transportation systems. Developing precise travel behavior models and testing their forecasting capabilities also have an important role. This study provides empirical ...
Developing precise travel behavior models and testing its forecasting capability are essential wh... more Developing precise travel behavior models and testing its forecasting capability are essential when planning transportation systems. However, emphasis is observed in estimating while forecasting still needs to be better understood. This study examines the temporal transferability of a Multinomial Logit Model and a hybrid Neuro-Fuzzy Multinomial Logit model, which differ primarily by including linear and non-linear utilities. Geographic Information System is successfully used during the forecasting process. Overall, the hybrid model presents better performance, even though both models do not show satisfactory behavior when directly transferred to the application context. Small sample model results show good behavior of the hybrid model. Accordingly, a sensitivity analysis suggests this model is able to capture travelers' sensitivity to parking cost variations, which is not well described by the classical model. Travelers' behavior could be better explained by the hybrid mod...
This paper presents findings from a six-year research programme underway in New Zealand to develo... more This paper presents findings from a six-year research programme underway in New Zealand to develop strategies for improving the resilience of organisations to major crisis events. The research takes a systems view of organisations, recognising that there are multiple interdependencies within and between different organisations that influence their abilities to respond and recover. This means that effective resilience management for any one organisation must look beyond that single organisation and consider the resilience of other organisations that it depends on.
Journal of business continuity & emergency planning, 2008
This paper presents findings from a six-year research programme underway in New Zealand to develo... more This paper presents findings from a six-year research programme underway in New Zealand to develop strategies for improving the resilience of organisations to major crisis events. The research takes a systems view of organisations, recognising that there are multiple interdependencies within and between different organisations that influence their abilities to respond and recover. This means that effective resilience management for any one organisation must look beyond that single organisation and consider the resilience of other organisations on which it depends. Particular aspects of organisational resilience focused on by the research team include: how individual organisations are positioned to respond to and recover from major crises; their ability to communicate and share information in order to direct resources effectively during crises; and the legal and contractual frameworks within which they will need to operate during crisis response and recovery. None of these issues can...
This paper presents findings from a six-year research programme underway in New Zealand to develo... more This paper presents findings from a six-year research programme underway in New Zealand to develop strategies for improving the resilience of organisations to major crisis events. The research takes a systems view of organisations, recognising that there are ...
This paper presents findings from a six-year research programme underway in New Zealand to develo... more This paper presents findings from a six-year research programme underway in New Zealand to develop strategies for improving the resilience of organisations to major crisis events. The research takes a systems view of organisations, recognising that there are multiple ...
in recent years (3-7). Nevertheless, after studying various implementations of GIS in emergencies... more in recent years (3-7). Nevertheless, after studying various implementations of GIS in emergencies, Zerger and Smith (8) concluded that most case studies do not have a real-time capability and require events to be premodeled. According to the National Research Council, "experience has shown that it is critical, in applying IT to disaster management, to start with real problems faced by real end users, to find solutions, and then to work back from there to overarching themes. Starting with overarching themes will lead to dead-ends, and unimplemented and un-implementable technology" (9). This paper takes an end user-centric approach rather than a platform-centric approach in the design of an information-sharing framework for New Zealand road organizations. In the light of information management concepts and principles, the framework is the result of conducting comprehensive analyses of the nature and background of involved organizations, the characteristics of their involvement, their data and information needs, their data-and information-sharing needs, and how organizations could and should share data and information.
ABSTRACT A considerable amount of research efforts have been dedicated to conceive forecasting mo... more ABSTRACT A considerable amount of research efforts have been dedicated to conceive forecasting models for predicting urban development and travel demand. Mainly originating from the application of economic theory, urban development models were initially conceived to explain the configuration and evolution of urban structures (Chapin, 1957). According to Ross (1988), these models are used to predict how future activities will be allocated, assuming that the land uses are determined by the location, the availability of services and proximity to other types of land uses. Based on these pioneer initiatives, Wegener (2003) identified and analyzed 20 integrated land use-transport models, which incorporated the most important spatial processes of development in conjunction with travel demand forecasting. Most part of them predicts land use separately to travel demand forecasting, i.e. each element (land use or transport) is modeled independently using its outputs for subsequent steps of the modelling process. Traditionally, planners have used these models to estimate future land use patterns and from them travel demand is estimated (Miller and Demestky, 1999), which is subsequently used to estimate traffic flows, congestion and pollution.
A framework for analyzing impacts of transport infrastructure policies under a holistic approach ... more A framework for analyzing impacts of transport infrastructure policies under a holistic approach is presented. This framework incorporates the time dimension of dynamic interactions between transportation and activity systems and linkages and implications to socio-economic and environmental changes due to transport infrastructure policies. Using a time-series database, the impacts of transportation policies were examined in a case study. It is argued that in New Zealand the framework could be employed to add new information about short, medium and long-term impacts. This would help in achieving objective/goals of the Land Transport Strategy.
Roading organizations are involved in a wide range of emergency response and recovery activities ... more Roading organizations are involved in a wide range of emergency response and recovery activities that requires information sharing. This paper presents an information sharing framework for roading organizations. The framework is applied to a desktop case study in the South Island of New Zealand to establish the approximate magnitude of potential benefits. Results show that a potential reduction in time and cost of emergency response activities could be reached if the conceptual framework was implemented through reduced response times, fast access to relevant information and therefore enhanced decision making.
This paper summarises the findings of a comprehensive study of the effects of road network bendin... more This paper summarises the findings of a comprehensive study of the effects of road network bendiness on traffic crashes that used GIS (geographical information system) analysis . The study was based on previous research that examined the effect of road network bendiness on crash occurrence at a TLA level of aggregation . It was assumed that the bendiness measures used by Haynes et al (2007b) would be more appropriate for predicting crash occurrence, and more useful from a traffic engineering viewpoint, when applied to localised regions. Thus a more appropriate method is presented and illustrated by a case study of New Zealand fatal traffic crashes.
This paper presents a hybrid transport modal choice model in which the genetic algorithm is appli... more This paper presents a hybrid transport modal choice model in which the genetic algorithm is applied for estimating parameters of a Multinomial Logit Model. The model has a simple decision structure which requires relatively modest computational capabilities and time to ...
The Resilient Organisations research programme aims to improve the resilience of New Zealand orga... more The Resilient Organisations research programme aims to improve the resilience of New Zealand organisations to major hazard events. Organisations manage, maintain and operate our infrastructure, create our economy and contribute to our society. The ability of organisations to respond effectively following a hazard event will have a large influence on the length of time that essential services are unavailable, and ultimately how well our communities cope with major disaster. Particular aspects of organisational response and recovery focused on by the research team include: how organisations plan for hazard events, their ability to direct resources effectively during crises, and the legal and contractual frameworks within which they will need to operate.
Understanding individual modal choice decisions is fundamental when developing and planning trans... more Understanding individual modal choice decisions is fundamental when developing and planning transportation systems. Developing precise travel behavior models and testing their forecasting capabilities also have an important role. This study provides empirical ...
Developing precise travel behavior models and testing its forecasting capability are essential wh... more Developing precise travel behavior models and testing its forecasting capability are essential when planning transportation systems. However, emphasis is observed in estimating while forecasting still needs to be better understood. This study examines the temporal transferability of a Multinomial Logit Model and a hybrid Neuro-Fuzzy Multinomial Logit model, which differ primarily by including linear and non-linear utilities. Geographic Information System is successfully used during the forecasting process. Overall, the hybrid model presents better performance, even though both models do not show satisfactory behavior when directly transferred to the application context. Small sample model results show good behavior of the hybrid model. Accordingly, a sensitivity analysis suggests this model is able to capture travelers' sensitivity to parking cost variations, which is not well described by the classical model. Travelers' behavior could be better explained by the hybrid mod...
This paper presents findings from a six-year research programme underway in New Zealand to develo... more This paper presents findings from a six-year research programme underway in New Zealand to develop strategies for improving the resilience of organisations to major crisis events. The research takes a systems view of organisations, recognising that there are multiple interdependencies within and between different organisations that influence their abilities to respond and recover. This means that effective resilience management for any one organisation must look beyond that single organisation and consider the resilience of other organisations that it depends on.
Journal of business continuity & emergency planning, 2008
This paper presents findings from a six-year research programme underway in New Zealand to develo... more This paper presents findings from a six-year research programme underway in New Zealand to develop strategies for improving the resilience of organisations to major crisis events. The research takes a systems view of organisations, recognising that there are multiple interdependencies within and between different organisations that influence their abilities to respond and recover. This means that effective resilience management for any one organisation must look beyond that single organisation and consider the resilience of other organisations on which it depends. Particular aspects of organisational resilience focused on by the research team include: how individual organisations are positioned to respond to and recover from major crises; their ability to communicate and share information in order to direct resources effectively during crises; and the legal and contractual frameworks within which they will need to operate during crisis response and recovery. None of these issues can...
This paper presents findings from a six-year research programme underway in New Zealand to develo... more This paper presents findings from a six-year research programme underway in New Zealand to develop strategies for improving the resilience of organisations to major crisis events. The research takes a systems view of organisations, recognising that there are ...
This paper presents findings from a six-year research programme underway in New Zealand to develo... more This paper presents findings from a six-year research programme underway in New Zealand to develop strategies for improving the resilience of organisations to major crisis events. The research takes a systems view of organisations, recognising that there are multiple ...
in recent years (3-7). Nevertheless, after studying various implementations of GIS in emergencies... more in recent years (3-7). Nevertheless, after studying various implementations of GIS in emergencies, Zerger and Smith (8) concluded that most case studies do not have a real-time capability and require events to be premodeled. According to the National Research Council, "experience has shown that it is critical, in applying IT to disaster management, to start with real problems faced by real end users, to find solutions, and then to work back from there to overarching themes. Starting with overarching themes will lead to dead-ends, and unimplemented and un-implementable technology" (9). This paper takes an end user-centric approach rather than a platform-centric approach in the design of an information-sharing framework for New Zealand road organizations. In the light of information management concepts and principles, the framework is the result of conducting comprehensive analyses of the nature and background of involved organizations, the characteristics of their involvement, their data and information needs, their data-and information-sharing needs, and how organizations could and should share data and information.
ABSTRACT A considerable amount of research efforts have been dedicated to conceive forecasting mo... more ABSTRACT A considerable amount of research efforts have been dedicated to conceive forecasting models for predicting urban development and travel demand. Mainly originating from the application of economic theory, urban development models were initially conceived to explain the configuration and evolution of urban structures (Chapin, 1957). According to Ross (1988), these models are used to predict how future activities will be allocated, assuming that the land uses are determined by the location, the availability of services and proximity to other types of land uses. Based on these pioneer initiatives, Wegener (2003) identified and analyzed 20 integrated land use-transport models, which incorporated the most important spatial processes of development in conjunction with travel demand forecasting. Most part of them predicts land use separately to travel demand forecasting, i.e. each element (land use or transport) is modeled independently using its outputs for subsequent steps of the modelling process. Traditionally, planners have used these models to estimate future land use patterns and from them travel demand is estimated (Miller and Demestky, 1999), which is subsequently used to estimate traffic flows, congestion and pollution.
A framework for analyzing impacts of transport infrastructure policies under a holistic approach ... more A framework for analyzing impacts of transport infrastructure policies under a holistic approach is presented. This framework incorporates the time dimension of dynamic interactions between transportation and activity systems and linkages and implications to socio-economic and environmental changes due to transport infrastructure policies. Using a time-series database, the impacts of transportation policies were examined in a case study. It is argued that in New Zealand the framework could be employed to add new information about short, medium and long-term impacts. This would help in achieving objective/goals of the Land Transport Strategy.
Roading organizations are involved in a wide range of emergency response and recovery activities ... more Roading organizations are involved in a wide range of emergency response and recovery activities that requires information sharing. This paper presents an information sharing framework for roading organizations. The framework is applied to a desktop case study in the South Island of New Zealand to establish the approximate magnitude of potential benefits. Results show that a potential reduction in time and cost of emergency response activities could be reached if the conceptual framework was implemented through reduced response times, fast access to relevant information and therefore enhanced decision making.
This paper summarises the findings of a comprehensive study of the effects of road network bendin... more This paper summarises the findings of a comprehensive study of the effects of road network bendiness on traffic crashes that used GIS (geographical information system) analysis . The study was based on previous research that examined the effect of road network bendiness on crash occurrence at a TLA level of aggregation . It was assumed that the bendiness measures used by Haynes et al (2007b) would be more appropriate for predicting crash occurrence, and more useful from a traffic engineering viewpoint, when applied to localised regions. Thus a more appropriate method is presented and illustrated by a case study of New Zealand fatal traffic crashes.
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Papers by Andre Dantas