Khaled A . Abbas | University of Suffolk (original) (raw)
Papers by Khaled A . Abbas
This paper presents a study of the characteristics of the trips of mobility handicapped people in... more This paper presents a study of the characteristics of the trips of mobility handicapped people in Cairo, and of possible policies and measures to improve their mobility. The study also aimed to identify the perceptions of mobility handicapped people about the severity of the problems that they encountered while using Cairo buses. The needs and perceptions of physically handicapped and visually handicapped people were investigated, using a survey with a revealed preference questionnaire, comprising both ranking and choice questions. The most common trip purpose for both types of person was travel to and from work, and the most common mode that they both used was public buses. Very few of the physically handicapped people had driving licences. The transport problems encountered by both types were analysed; restricted use of travel passes on all bus routes was the main problem for each type. Detailed tables and charts of the survey's results are included. The many policies and meas...
This research is concerned with developing passenger demand models for international aviation fro... more This research is concerned with developing passenger demand models for international aviation from/to Egypt. In this context, the aviation sector in Egypt is represented by the biggest airport, Cairo Airport, as well as by the main Egyptian international air carrier, Egyptair. The developed models utilize two variables to represent aviation demand, namely the total number of international flights originating from and attracted to Cairo Airport as well as total number of passengers using Egyptair international flights originating from and attracted to Cairo Airport. Such demand variables were related, using different functional forms, to several explanatory variables including population, gross domestic product and number of foreign tourists. Finally, two models were selected based on their logical acceptability, best fit and statistical significance. To demonstrate the usefulness of the models, they were used to forecast future demand patterns.
This paper reviews and compares the main strategies adopted for relieving traffic congestion and ... more This paper reviews and compares the main strategies adopted for relieving traffic congestion and in particular the various traffic demand management (TDM) policies and measures. It presents the results of an attitudinal questionnaire survey that was conducted with a sample of car-users in Cairo. The questionnaire was meant to recognize the work trip characteristics, patterns of parking of car users in Cairo and determinants affecting their mode choice to use the private car. The first main objective of the questionnaire was to expose car users to three main potential TDM alternatives, namely the introduction of a new premium bus transit service, an organised carpooling service, and the possibility for teleworking with the intention of identifying car users' acceptability of these measures and their perception towards possible modal shift and use of these services. The second main objective of the questionnaire was to assess the potentiality, in terms of acceptability, applicabil...
This paper presents the results of a questionnaire survey, that was specially designed to identif... more This paper presents the results of a questionnaire survey, that was specially designed to identify mobility handicapped people's perception of the pedestrian environment problems that they face in the streets of Cairo, Egypt. The study aimed to: (1) identify the most severe problems and difficulties that the mobility handicapped face, while walking on sidewalks and crossing streets in Cairo; and (2) suggest a set of policies and measures, intended to improve their pedestrian environment. 172 physically handicapped and 142 visually impaired people completed the questionnaire. The mobility needs for both groups of people are tabulated. Most of the physically handicapped need a crutch or stick to assist their movement, and most of the visually impaired need to be accompanied by other people while travelling. The most significant problems found were: (1) the unevenness of sidewalks; and (2) the inadequate provision of pedestrian crossings. Twelve specific policies and measures are s...
Journal of Transportation Technologies, 2017
Bus transport organisations need to conduct network reviews on periodical basis. This is meant to... more Bus transport organisations need to conduct network reviews on periodical basis. This is meant to identify those bus routes that are weak performers as well as those that do not add significant value to the overall bus network. This research develops & adopts the slogan MISS TS which is an abbreviation for Multimodal Integrated Smart Sustainable Transport System, a transport system that is multimodal, integrated, seamless, smart and sustainable. Towards this end the research develops an innovative generic methodology that attempts to achieve an optimum bus network by taking into account all previously stated dimensions in assessing and rationalizing the performance of bus routes. The methodology starts by first categorizing the bus network into market segments i.e. CBD, Feeder, Express, Airport, Neighborhood etc. This is then followed by compiling operational and financial data on a route by route basis. Data includes operational costs, operational revenues, passengers, kilometers, ...
Journal of Transportation Technologies, 2017
Journal of Transportation Technologies, 2017
This paper proposes concepts, ingredients and levels of sustainable traffic safety management. Al... more This paper proposes concepts, ingredients and levels of sustainable traffic safety management. Also presented is a review of the development of traffic safety approaches. The paper's focus was directed towards developing a conceptual proposal for a comprehensive and structured model encompassing all phases, functions, and activities that should be pursued to achieve a sustainable management of traffic safety. Activities involved within the developed approach include: design of accident reporting system; accident analysis and investigation system; diagnosis of direct, root and post causes of accidents; setting of safety objectives; identification of potential safety countermeasures; operation and implementation of a program of an integrated traffic safety package; dynamic monitoring and post program evaluation. The developed framework is thought to achieve and sustain improved traffic safety situations, leading to reduction of accident risks.
The main aim of this research is to develop a generic approach for the utilization of statistical... more The main aim of this research is to develop a generic approach for the utilization of statistical methods to conduct depth investigation of road accident characteristics and causes. This approach is applied in an effort to analyse the 1998 accident database for the main rural roads in Egypt. This database is composed of traffic accident data collected for 14 road sections representing nine major roads of the Egyptian rural road network. The proposed approach is composed of two main stages of analysis. Within each stage, several analytical steps are conducted. The first stage is mainly concerned with developing cluster bar charts, where different characteristics and causes of accidents are portrayed in relation to variations in the three main accident contributing factors, namely types of roads, vehicles and drivers. The second stage is concerned with conducting in-depth statistical analysis of the collected accident data. Within this stage, four levels of statistical investigations ...
J. Ubiquitous Syst. Pervasive Networks, 2016
Advances in transportation studies, 2004
This paper first presents a conceptualization of the road safety pyramid, its components, and rel... more This paper first presents a conceptualization of the road safety pyramid, its components, and related factors. It then develops a 3-step procedure to assess the road safety conditions in a developing country (Egypt). More than 40 criteria are identified and applied in order to semantically assess the road safety culture. Deaths/million vehicle km are obtained for Egypt, 3 other Middle Eastern countries, and 6 of the G-7 nations. These were compared to determine Egypt's road safety position. Accident records collected in 1998 for 5 main rural roads in Egypt are compiled and analyzed to identify accident causes. These are categorized as follows: driver related, pedestrian related, vehicle related, road related, environment related, and all other causes. The paper also develops an integrated road safety program comprised of 16 fields of action. Each contains a number of recommended policies, measures, and actions targeted to improve road safety in Egypt and other developing nations.
This research starts by developing a comprehensive inventory and categorization of demand and sup... more This research starts by developing a comprehensive inventory and categorization of demand and supply-based policies and measures that are aimed at relieving traffic problems in metropolitan cities. A set of generic criteria that can be used as a basis for the judgmental assessment of such policies and measures is identified and selected. An attitudinal questionnaire is then designed to elicit the judgment of transport, traffic and highway experts regarding potentiality (efficiency and effectiveness), public acceptability, applicability, perceived cost and priority of implementation of these policies and measures. Appropriate nonparametric statistical tests and techniques are selected and applied to conduct an in depth statistical analysis of gathered expert information. The main purpose of such analysis is to obtain judgment patterns of experts and degree of consensus among them. Statistical analysis is complemented by a weighting procedure to establish the potential achievement rat...
This paper is concerned with developing a detailed generic algorithm to assist in conducting a co... more This paper is concerned with developing a detailed generic algorithm to assist in conducting a comprehensive and structured financial feasibility assessment of private investment in road projects. The developed algorithm constitutes eight stages, namely defining the objectives of the project, traffic analysis, conducting Environmental Impact Assessments (EIA), estimation of potential costs, forecasting of project revenues, estimation of key financial criteria and comparing these with project financial objectives so as to determine project viability. Finally, the eighth stage is concerned with minimizing uncertainties and risk through a three level procedure of conducing scenario analysis, sensitivity tests and risk analysis. Several conclusions are deduced, the most important of which is the importance to forecast and analyze the development of traffic flows over the life of a BOT road project. This forecast should particularly run over the time period considered for evaluating the ...
Advances in transportation studies, 2010
This paper presents an innovative structured procedure for developing integrated traffic relieve ... more This paper presents an innovative structured procedure for developing integrated traffic relieve programs with immediate important practical implications. This is based on expert judgment. The paper starts by developing a comprehensive inventory and categorization of policies and measures that are aimed at relieving traffic problems in metropolitan cities. Generic criteria that can be used as basis for the judgmental assessment of such policies and measures are identified and selected. An attitudinal questionnaire was designed to elicit the judgment of transport, traffic and highway academics (experts) regarding potentiality (efficiency and effectiveness), public acceptability, applicability, perceived cost and priority of implementation of these policies and measures. Appropriate nonparametric statistical tests and techniques were selected and applied to conduct an in depth statistical analysis of the gathered expert information. The main purpose of such analysis is to obtain judgm...
The worldwide orientation towards globalization and free trade created strong competition among i... more The worldwide orientation towards globalization and free trade created strong competition among international container terminals to attract more demand for container handing. Container terminals across the world are striving to enhance their market competitiveness, through introducing improvements in their quality of services as well as developing their management style. Management of business as a logistics chain is currently gaining momentum. Logistics is the process of planning, implementing and controlling the efficient and effective flow and storage of raw materials, in process inventory, finished goods, services and related information from points of origin to points of consumption taking into consideration conforming to customer requirements. Essential principles of logistics and supply chain management can be applied to many different business processes across a wide range of industries, including service industries. This is meant to assist in simulating business activities...
This research attempts to identify the most profound mobility difficulties and traffic safety pro... more This research attempts to identify the most profound mobility difficulties and traffic safety problems that vulnerable road users (pedestrians, physically handicapped and visually impaired) face while walking on sidewalks and crossing roads in Cairo.
This paper is concerned with one of the three requirements of a sustainable transport system, nam... more This paper is concerned with one of the three requirements of a sustainable transport system, namely the environmental dimension. It starts by presenting components and interactions of the transport and traffic systems using causal diagrams. Generic traffic problems are identified and their causes categorized. A classification of demand and supply-based policies and measures that can be used in designing environmentally sustainable transport strategies is depicted. Such strategies are targeted towards minimizing the generic traffic problems encountered in metropolitan cities, i.e., traffic congestion, accidents, environmental degradation and energy inefficiencies. In this paper, Travel Demand and Land Use Management are considered as two of the basic pillars for designing environmentally sustainable transport strategies. Criteria for comparing demand versus supply-based policies are suggested. These are applied to assess the benefits and limitations of each policy, hence assisting d...
This paper presents a study of the characteristics of the trips of mobility handicapped people in... more This paper presents a study of the characteristics of the trips of mobility handicapped people in Cairo, and of possible policies and measures to improve their mobility. The study also aimed to identify the perceptions of mobility handicapped people about the severity of the problems that they encountered while using Cairo buses. The needs and perceptions of physically handicapped and visually handicapped people were investigated, using a survey with a revealed preference questionnaire, comprising both ranking and choice questions. The most common trip purpose for both types of person was travel to and from work, and the most common mode that they both used was public buses. Very few of the physically handicapped people had driving licences. The transport problems encountered by both types were analysed; restricted use of travel passes on all bus routes was the main problem for each type. Detailed tables and charts of the survey's results are included. The many policies and meas...
This research is concerned with developing passenger demand models for international aviation fro... more This research is concerned with developing passenger demand models for international aviation from/to Egypt. In this context, the aviation sector in Egypt is represented by the biggest airport, Cairo Airport, as well as by the main Egyptian international air carrier, Egyptair. The developed models utilize two variables to represent aviation demand, namely the total number of international flights originating from and attracted to Cairo Airport as well as total number of passengers using Egyptair international flights originating from and attracted to Cairo Airport. Such demand variables were related, using different functional forms, to several explanatory variables including population, gross domestic product and number of foreign tourists. Finally, two models were selected based on their logical acceptability, best fit and statistical significance. To demonstrate the usefulness of the models, they were used to forecast future demand patterns.
This paper reviews and compares the main strategies adopted for relieving traffic congestion and ... more This paper reviews and compares the main strategies adopted for relieving traffic congestion and in particular the various traffic demand management (TDM) policies and measures. It presents the results of an attitudinal questionnaire survey that was conducted with a sample of car-users in Cairo. The questionnaire was meant to recognize the work trip characteristics, patterns of parking of car users in Cairo and determinants affecting their mode choice to use the private car. The first main objective of the questionnaire was to expose car users to three main potential TDM alternatives, namely the introduction of a new premium bus transit service, an organised carpooling service, and the possibility for teleworking with the intention of identifying car users' acceptability of these measures and their perception towards possible modal shift and use of these services. The second main objective of the questionnaire was to assess the potentiality, in terms of acceptability, applicabil...
This paper presents the results of a questionnaire survey, that was specially designed to identif... more This paper presents the results of a questionnaire survey, that was specially designed to identify mobility handicapped people's perception of the pedestrian environment problems that they face in the streets of Cairo, Egypt. The study aimed to: (1) identify the most severe problems and difficulties that the mobility handicapped face, while walking on sidewalks and crossing streets in Cairo; and (2) suggest a set of policies and measures, intended to improve their pedestrian environment. 172 physically handicapped and 142 visually impaired people completed the questionnaire. The mobility needs for both groups of people are tabulated. Most of the physically handicapped need a crutch or stick to assist their movement, and most of the visually impaired need to be accompanied by other people while travelling. The most significant problems found were: (1) the unevenness of sidewalks; and (2) the inadequate provision of pedestrian crossings. Twelve specific policies and measures are s...
Journal of Transportation Technologies, 2017
Bus transport organisations need to conduct network reviews on periodical basis. This is meant to... more Bus transport organisations need to conduct network reviews on periodical basis. This is meant to identify those bus routes that are weak performers as well as those that do not add significant value to the overall bus network. This research develops & adopts the slogan MISS TS which is an abbreviation for Multimodal Integrated Smart Sustainable Transport System, a transport system that is multimodal, integrated, seamless, smart and sustainable. Towards this end the research develops an innovative generic methodology that attempts to achieve an optimum bus network by taking into account all previously stated dimensions in assessing and rationalizing the performance of bus routes. The methodology starts by first categorizing the bus network into market segments i.e. CBD, Feeder, Express, Airport, Neighborhood etc. This is then followed by compiling operational and financial data on a route by route basis. Data includes operational costs, operational revenues, passengers, kilometers, ...
Journal of Transportation Technologies, 2017
Journal of Transportation Technologies, 2017
This paper proposes concepts, ingredients and levels of sustainable traffic safety management. Al... more This paper proposes concepts, ingredients and levels of sustainable traffic safety management. Also presented is a review of the development of traffic safety approaches. The paper's focus was directed towards developing a conceptual proposal for a comprehensive and structured model encompassing all phases, functions, and activities that should be pursued to achieve a sustainable management of traffic safety. Activities involved within the developed approach include: design of accident reporting system; accident analysis and investigation system; diagnosis of direct, root and post causes of accidents; setting of safety objectives; identification of potential safety countermeasures; operation and implementation of a program of an integrated traffic safety package; dynamic monitoring and post program evaluation. The developed framework is thought to achieve and sustain improved traffic safety situations, leading to reduction of accident risks.
The main aim of this research is to develop a generic approach for the utilization of statistical... more The main aim of this research is to develop a generic approach for the utilization of statistical methods to conduct depth investigation of road accident characteristics and causes. This approach is applied in an effort to analyse the 1998 accident database for the main rural roads in Egypt. This database is composed of traffic accident data collected for 14 road sections representing nine major roads of the Egyptian rural road network. The proposed approach is composed of two main stages of analysis. Within each stage, several analytical steps are conducted. The first stage is mainly concerned with developing cluster bar charts, where different characteristics and causes of accidents are portrayed in relation to variations in the three main accident contributing factors, namely types of roads, vehicles and drivers. The second stage is concerned with conducting in-depth statistical analysis of the collected accident data. Within this stage, four levels of statistical investigations ...
J. Ubiquitous Syst. Pervasive Networks, 2016
Advances in transportation studies, 2004
This paper first presents a conceptualization of the road safety pyramid, its components, and rel... more This paper first presents a conceptualization of the road safety pyramid, its components, and related factors. It then develops a 3-step procedure to assess the road safety conditions in a developing country (Egypt). More than 40 criteria are identified and applied in order to semantically assess the road safety culture. Deaths/million vehicle km are obtained for Egypt, 3 other Middle Eastern countries, and 6 of the G-7 nations. These were compared to determine Egypt's road safety position. Accident records collected in 1998 for 5 main rural roads in Egypt are compiled and analyzed to identify accident causes. These are categorized as follows: driver related, pedestrian related, vehicle related, road related, environment related, and all other causes. The paper also develops an integrated road safety program comprised of 16 fields of action. Each contains a number of recommended policies, measures, and actions targeted to improve road safety in Egypt and other developing nations.
This research starts by developing a comprehensive inventory and categorization of demand and sup... more This research starts by developing a comprehensive inventory and categorization of demand and supply-based policies and measures that are aimed at relieving traffic problems in metropolitan cities. A set of generic criteria that can be used as a basis for the judgmental assessment of such policies and measures is identified and selected. An attitudinal questionnaire is then designed to elicit the judgment of transport, traffic and highway experts regarding potentiality (efficiency and effectiveness), public acceptability, applicability, perceived cost and priority of implementation of these policies and measures. Appropriate nonparametric statistical tests and techniques are selected and applied to conduct an in depth statistical analysis of gathered expert information. The main purpose of such analysis is to obtain judgment patterns of experts and degree of consensus among them. Statistical analysis is complemented by a weighting procedure to establish the potential achievement rat...
This paper is concerned with developing a detailed generic algorithm to assist in conducting a co... more This paper is concerned with developing a detailed generic algorithm to assist in conducting a comprehensive and structured financial feasibility assessment of private investment in road projects. The developed algorithm constitutes eight stages, namely defining the objectives of the project, traffic analysis, conducting Environmental Impact Assessments (EIA), estimation of potential costs, forecasting of project revenues, estimation of key financial criteria and comparing these with project financial objectives so as to determine project viability. Finally, the eighth stage is concerned with minimizing uncertainties and risk through a three level procedure of conducing scenario analysis, sensitivity tests and risk analysis. Several conclusions are deduced, the most important of which is the importance to forecast and analyze the development of traffic flows over the life of a BOT road project. This forecast should particularly run over the time period considered for evaluating the ...
Advances in transportation studies, 2010
This paper presents an innovative structured procedure for developing integrated traffic relieve ... more This paper presents an innovative structured procedure for developing integrated traffic relieve programs with immediate important practical implications. This is based on expert judgment. The paper starts by developing a comprehensive inventory and categorization of policies and measures that are aimed at relieving traffic problems in metropolitan cities. Generic criteria that can be used as basis for the judgmental assessment of such policies and measures are identified and selected. An attitudinal questionnaire was designed to elicit the judgment of transport, traffic and highway academics (experts) regarding potentiality (efficiency and effectiveness), public acceptability, applicability, perceived cost and priority of implementation of these policies and measures. Appropriate nonparametric statistical tests and techniques were selected and applied to conduct an in depth statistical analysis of the gathered expert information. The main purpose of such analysis is to obtain judgm...
The worldwide orientation towards globalization and free trade created strong competition among i... more The worldwide orientation towards globalization and free trade created strong competition among international container terminals to attract more demand for container handing. Container terminals across the world are striving to enhance their market competitiveness, through introducing improvements in their quality of services as well as developing their management style. Management of business as a logistics chain is currently gaining momentum. Logistics is the process of planning, implementing and controlling the efficient and effective flow and storage of raw materials, in process inventory, finished goods, services and related information from points of origin to points of consumption taking into consideration conforming to customer requirements. Essential principles of logistics and supply chain management can be applied to many different business processes across a wide range of industries, including service industries. This is meant to assist in simulating business activities...
This research attempts to identify the most profound mobility difficulties and traffic safety pro... more This research attempts to identify the most profound mobility difficulties and traffic safety problems that vulnerable road users (pedestrians, physically handicapped and visually impaired) face while walking on sidewalks and crossing roads in Cairo.
This paper is concerned with one of the three requirements of a sustainable transport system, nam... more This paper is concerned with one of the three requirements of a sustainable transport system, namely the environmental dimension. It starts by presenting components and interactions of the transport and traffic systems using causal diagrams. Generic traffic problems are identified and their causes categorized. A classification of demand and supply-based policies and measures that can be used in designing environmentally sustainable transport strategies is depicted. Such strategies are targeted towards minimizing the generic traffic problems encountered in metropolitan cities, i.e., traffic congestion, accidents, environmental degradation and energy inefficiencies. In this paper, Travel Demand and Land Use Management are considered as two of the basic pillars for designing environmentally sustainable transport strategies. Criteria for comparing demand versus supply-based policies are suggested. These are applied to assess the benefits and limitations of each policy, hence assisting d...