Elias Choueiri - Academia.edu (original) (raw)
Papers by Elias Choueiri
Transportation Research Record, 1990
Rail Engineering International, 1996
... RAIL ENGINEERING INTERNATIONAL, V. 25, NO. 2 (1996), P. 12-15: ILL., MAPS. Files: TLIB. Autho... more ... RAIL ENGINEERING INTERNATIONAL, V. 25, NO. 2 (1996), P. 12-15: ILL., MAPS. Files: TLIB. Authors: Choueiri, Elias M. Publication Date: 1996. Serial: Rail Engineering International Publisher: De Rooi Publications ISSN: 0141-4615 OCLC: 9675046. Availability: ...
Technology has a potentially rich, but largely unre alised, role in teaching and learning. This r... more Technology has a potentially rich, but largely unre alised, role in teaching and learning. This role is defined variously by what the teacher has available, has had time to learn, or can find an appropriate use for, and by what studen ts have access to, are familiar with, and are willing to use. In all of these ways, techn ology usually plays an adjunct role to others, more traditional modalities for teaching an d learning, including lecture, laboratory, library, textbook, tutorial, and practi cum. Researchers perceive problems arising from the sign ificant cultural and organisational differences affecting the management and leadership environment of the modern higher education institutions integrating technology in re lation to traditional higher education institutions. This present study describes and anal yzes the culture effects in higher education organisations that are challenging the fu ture pre-eminence of the use of technological tools in teaching in higher education . This...
Technology has a potentially rich, but largely unrealised, role in teaching and learning. This ro... more Technology has a potentially rich, but largely unrealised, role in teaching and learning. This role is defined variously by what the teacher has available, has had time to learn, or can find an appropriate use for, and by what students have access to, are familiar with, and are willing to use. In all of these ways, technology usually plays an adjunct role to others, more traditional modalities for teaching and learning, including lecture, laboratory, library, textbook, tutorial, and practicum. Researchers perceive problems arising from the significant cultural and organisational differences affecting the management and leadership environment of the modern higher education institutions integrating technology in relation to traditional higher education institutions. This present study describes and analyzes the culture effects in higher education organisation that are challenging the future pre-eminence of the use of technological tools in teaching in higher education. This study trie...
A ccording to estimations by the World Bank, 350,000 people are killed in automobile accidents in... more A ccording to estimations by the World Bank, 350,000 people are killed in automobile accidents in the developing world each year. Two-thirds of these accidents involve pedestrians, most of whom are children, and occur in cities or surrounding areas. As a result of the population surge in urban areas and the rise in vehicle ownership, the figures are still mounting. In fact, road accidents represent the second most important cause of death among 5-to 44-year-olds. As a result, accidents cost developing countries between 1.4billionand1.4 billion and 1.4billionand2 billion per year, or an estimated 1 percent to 2 percent of their annual gross national product. To make matters worse, a substantial part of this cost must be paid in foreign exchange. since most vehicles. spare parts and medicines have to be imported.’ This article addresses the road safety situation in Lebanon, a developing country in the Middle East, investigates the main aspects of traffic accidents, and suggests possible solutions to remedy t...
Transportation Research Record, 1985
The objective of this study was to assess the effectiveness of freeway lighting. To achieve this,... more The objective of this study was to assess the effectiveness of freeway lighting. To achieve this, a case study on traffic accident characteristics was conducted that utilized a suburban freeway area west of Frankfurt, Federal Republic of Germany, between 1972 and 1981. The study revealed that (a) the effects of lighting on suburban freeway accident rates was positive -- there was a reduction in accidents, and (b) these positive results of continuous freeway lighting were lost in the case of partial lighting, especially after switching off lights at night between 10:00 p.m. and 5:30 a.m. for the purpose of saving energy.
The second half of the research project was mainly concerned with the practical application of a ... more The second half of the research project was mainly concerned with the practical application of a proposed design procedure to promote design consistency, harmonize operating speed and design speed, and evaluate the effect of lane widening projects on two-lane rural highways. The effect of "tangent length" on operating speeds between successive curves is addresses for the first time in the present design procedure. A methodology is presented for measuring the consistency of horizontal design as defined by operating speed and accident expectations. Operating speeds and accident rates can be predicted for various lane widths based upon degree of curve and posted recommended speeds. Guidelines for changes in operating speeds and acceptable accident rates are suggested and various nomographs developed to evaluate consistency or inconsistency of roadway sections based upon their design parameters.
An estimated 1.2 million people worldwide are estimated to be killed and 50 million injured in ro... more An estimated 1.2 million people worldwide are estimated to be killed and 50 million injured in road traffic accidents each year. Statistics reveal that every 3 minutes a child is killed on the world’s roads, and more than 80% of road deaths occur in low and middle income countries. According to some estimates, it is expected that, in the year 2020: 1) road deaths will increase by 80%; 2) road traffic deaths and injuries will rise by 65%; 3) road traffic deaths and injuries will see a reduction of 28% in high income countries, compared to an increase of road traffic deaths and injuries in low and middle income countries due to escalating motorization. There is a growing international recognition of this major public health challenge, and perhaps nowhere more so than in Lebanon, a developing country in the Mediterranean region. This article looks at the land transport sector in Lebanon, and briefly discusses its negative consequences. It then looks at the road traffic accident situati...
Int. Arab. J. e Technol., 2013
Transportation Research Record, 1990
A fundamental scale is presented for evaluating appropriate levels of tangential and side frictio... more A fundamental scale is presented for evaluating appropriate levels of tangential and side friction factors with respect to design speed for new designs, redesigns, and rehabilitation strategies. The friction data used were obtained from the geometric highway design guidelines of the United States and several Western European countries, and from actual pavement friction inventories in New York State and in the Federal Republic of Germany (FRG). From the friction data of the countries in this study, relationships were developed between tangential or side friction factors and speed. The curves resulting from these relationships were then compared with percentile level distribution curves obtained from the actual pavement friction inventories. Analyses indicated that (a) the friction factors produced by the overall regression curves coincided with those obtained from the 90th-percentile level distribution curve of New York State, and with those derived from the 30th-percentile level dis...
An overview of various public transportation infrastructure project financing aspects is given in... more An overview of various public transportation infrastructure project financing aspects is given in this article. In recent years, there has been a dramatic global increase in private sector involvement in public transportation facilities and services development and financing, ranging from new infrastructure full greenfeld development to existing operation management contracts. Due mainly to governmental budgetary constraint and governmental recognition of private sector capabilities in regard to project management and implementation, rapid growth is expected in privately financed infrastructure projects. In order to attract additional capital in order to relieve government budgets and borrowing, shelter infrastructure from excessive political involvement, control skills in private management, and achieve commercial discipline, there needs to be more research for private funding.
Three safety criteria for evaluating curved roadway sections including transition sections were a... more Three safety criteria for evaluating curved roadway sections including transition sections were analyzed in order to address these important target areas for reducing accident frequency and severity. These criteria are (a) achieving consistency between successive design elements ; (b) harmonizing design speed and operating speed, especially on wet pavements ; and (c) providing adequate dynamic safety of driving. The above safety criteria constitute the core of the overall safety module proposed in this study for classifying road networks or roadway sections (or both), existing or planned, as good, fair, or poor designs. The evaluation process of the safety module, encompassing separate evaluation processes for each of the above safety criteria as well as for the combination of all three criteria, can be done manually by using the Geographic Information System known as SPANS. By using discriminating colors or symbols with SPANS, the resulting separate or combined design safety levels...
European design guidelines explicitly address horizontal design consistency for two-lane, rural r... more European design guidelines explicitly address horizontal design consistency for two-lane, rural roads in an attempt to promote smooth operating speed profiles and, in turn, safe operation. U.S. practice qualitatively advocates consistent alignment but provides little objective guidance to assure that consistency is achieved. This paper presents a procedure for measuring the consistency of horizontal design as defined by operating speed and accidents expected. Operating speeds and accident rates can be predicted for various lane widths based on degree of curve and posted recommended speeds, as derived from measurement of 261 sites in New York state. Guidelines for changes in operating speeds and acceptable accident rates for good, fair, and poor designs are suggested, and various nomographs are developed to evaluate roadway sections based on design parameters. In addition, an example application is provided to illustrate the case of fair design practices. It is concluded that such a ...
Technology has a potentially rich, but largely unrealised, role in teaching and learning. This ro... more Technology has a potentially rich, but largely unrealised, role in teaching and learning. This role is defined variously by what the teacher has available, has had time to learn, or can find an appropriate use for, and by what students have access to, are familiar with, and are willing to use. In all of these ways, technology usually plays an adjunct role to others, more traditional modalities for teaching and learning, including lecture, laboratory, library, textbook, tutorial, and practicum. Researchers perceive problems arising from the significant cultural and organisational differences affecting the management and leadership environment of the modern higher education institutions integrating technology in relation to traditional higher education institutions. This present study describes and analyzes the culture effects in higher education organisations that are challenging the future pre-eminence of the use of technological tools in teaching in higher education. This study tri...
This study analyzes and identifies unique factors that affect the traffic safety in the United St... more This study analyzes and identifies unique factors that affect the traffic safety in the United States and Western European countries. The emphasis is on: 1) identifying and isolating major problem areas in traffic safety, 2) understanding underlying causal factors and their relationships to the problem areas, and 3) recommending potential countermeasures that may be effective in alleviating the safety problems. To achieve the objectives stated previously, this study includes: 1) the identification of the similarities and dissimilarities among the subject countries, and showing quantitatively the changes in fatalities and fatality rates as experienced from 1970 through 1980 by each country, and 2) the determination of the specific safety improvement needs for each of the subject countries. To accomplish this, t-tests are conducted to determine whether there are real changes in the accident trends. These changes are analyzed respectively for the road user groups and age groups for the...
Transportation Research Record, 1990
Rail Engineering International, 1996
... RAIL ENGINEERING INTERNATIONAL, V. 25, NO. 2 (1996), P. 12-15: ILL., MAPS. Files: TLIB. Autho... more ... RAIL ENGINEERING INTERNATIONAL, V. 25, NO. 2 (1996), P. 12-15: ILL., MAPS. Files: TLIB. Authors: Choueiri, Elias M. Publication Date: 1996. Serial: Rail Engineering International Publisher: De Rooi Publications ISSN: 0141-4615 OCLC: 9675046. Availability: ...
Technology has a potentially rich, but largely unre alised, role in teaching and learning. This r... more Technology has a potentially rich, but largely unre alised, role in teaching and learning. This role is defined variously by what the teacher has available, has had time to learn, or can find an appropriate use for, and by what studen ts have access to, are familiar with, and are willing to use. In all of these ways, techn ology usually plays an adjunct role to others, more traditional modalities for teaching an d learning, including lecture, laboratory, library, textbook, tutorial, and practi cum. Researchers perceive problems arising from the sign ificant cultural and organisational differences affecting the management and leadership environment of the modern higher education institutions integrating technology in re lation to traditional higher education institutions. This present study describes and anal yzes the culture effects in higher education organisations that are challenging the fu ture pre-eminence of the use of technological tools in teaching in higher education . This...
Technology has a potentially rich, but largely unrealised, role in teaching and learning. This ro... more Technology has a potentially rich, but largely unrealised, role in teaching and learning. This role is defined variously by what the teacher has available, has had time to learn, or can find an appropriate use for, and by what students have access to, are familiar with, and are willing to use. In all of these ways, technology usually plays an adjunct role to others, more traditional modalities for teaching and learning, including lecture, laboratory, library, textbook, tutorial, and practicum. Researchers perceive problems arising from the significant cultural and organisational differences affecting the management and leadership environment of the modern higher education institutions integrating technology in relation to traditional higher education institutions. This present study describes and analyzes the culture effects in higher education organisation that are challenging the future pre-eminence of the use of technological tools in teaching in higher education. This study trie...
A ccording to estimations by the World Bank, 350,000 people are killed in automobile accidents in... more A ccording to estimations by the World Bank, 350,000 people are killed in automobile accidents in the developing world each year. Two-thirds of these accidents involve pedestrians, most of whom are children, and occur in cities or surrounding areas. As a result of the population surge in urban areas and the rise in vehicle ownership, the figures are still mounting. In fact, road accidents represent the second most important cause of death among 5-to 44-year-olds. As a result, accidents cost developing countries between 1.4billionand1.4 billion and 1.4billionand2 billion per year, or an estimated 1 percent to 2 percent of their annual gross national product. To make matters worse, a substantial part of this cost must be paid in foreign exchange. since most vehicles. spare parts and medicines have to be imported.’ This article addresses the road safety situation in Lebanon, a developing country in the Middle East, investigates the main aspects of traffic accidents, and suggests possible solutions to remedy t...
Transportation Research Record, 1985
The objective of this study was to assess the effectiveness of freeway lighting. To achieve this,... more The objective of this study was to assess the effectiveness of freeway lighting. To achieve this, a case study on traffic accident characteristics was conducted that utilized a suburban freeway area west of Frankfurt, Federal Republic of Germany, between 1972 and 1981. The study revealed that (a) the effects of lighting on suburban freeway accident rates was positive -- there was a reduction in accidents, and (b) these positive results of continuous freeway lighting were lost in the case of partial lighting, especially after switching off lights at night between 10:00 p.m. and 5:30 a.m. for the purpose of saving energy.
The second half of the research project was mainly concerned with the practical application of a ... more The second half of the research project was mainly concerned with the practical application of a proposed design procedure to promote design consistency, harmonize operating speed and design speed, and evaluate the effect of lane widening projects on two-lane rural highways. The effect of "tangent length" on operating speeds between successive curves is addresses for the first time in the present design procedure. A methodology is presented for measuring the consistency of horizontal design as defined by operating speed and accident expectations. Operating speeds and accident rates can be predicted for various lane widths based upon degree of curve and posted recommended speeds. Guidelines for changes in operating speeds and acceptable accident rates are suggested and various nomographs developed to evaluate consistency or inconsistency of roadway sections based upon their design parameters.
An estimated 1.2 million people worldwide are estimated to be killed and 50 million injured in ro... more An estimated 1.2 million people worldwide are estimated to be killed and 50 million injured in road traffic accidents each year. Statistics reveal that every 3 minutes a child is killed on the world’s roads, and more than 80% of road deaths occur in low and middle income countries. According to some estimates, it is expected that, in the year 2020: 1) road deaths will increase by 80%; 2) road traffic deaths and injuries will rise by 65%; 3) road traffic deaths and injuries will see a reduction of 28% in high income countries, compared to an increase of road traffic deaths and injuries in low and middle income countries due to escalating motorization. There is a growing international recognition of this major public health challenge, and perhaps nowhere more so than in Lebanon, a developing country in the Mediterranean region. This article looks at the land transport sector in Lebanon, and briefly discusses its negative consequences. It then looks at the road traffic accident situati...
Int. Arab. J. e Technol., 2013
Transportation Research Record, 1990
A fundamental scale is presented for evaluating appropriate levels of tangential and side frictio... more A fundamental scale is presented for evaluating appropriate levels of tangential and side friction factors with respect to design speed for new designs, redesigns, and rehabilitation strategies. The friction data used were obtained from the geometric highway design guidelines of the United States and several Western European countries, and from actual pavement friction inventories in New York State and in the Federal Republic of Germany (FRG). From the friction data of the countries in this study, relationships were developed between tangential or side friction factors and speed. The curves resulting from these relationships were then compared with percentile level distribution curves obtained from the actual pavement friction inventories. Analyses indicated that (a) the friction factors produced by the overall regression curves coincided with those obtained from the 90th-percentile level distribution curve of New York State, and with those derived from the 30th-percentile level dis...
An overview of various public transportation infrastructure project financing aspects is given in... more An overview of various public transportation infrastructure project financing aspects is given in this article. In recent years, there has been a dramatic global increase in private sector involvement in public transportation facilities and services development and financing, ranging from new infrastructure full greenfeld development to existing operation management contracts. Due mainly to governmental budgetary constraint and governmental recognition of private sector capabilities in regard to project management and implementation, rapid growth is expected in privately financed infrastructure projects. In order to attract additional capital in order to relieve government budgets and borrowing, shelter infrastructure from excessive political involvement, control skills in private management, and achieve commercial discipline, there needs to be more research for private funding.
Three safety criteria for evaluating curved roadway sections including transition sections were a... more Three safety criteria for evaluating curved roadway sections including transition sections were analyzed in order to address these important target areas for reducing accident frequency and severity. These criteria are (a) achieving consistency between successive design elements ; (b) harmonizing design speed and operating speed, especially on wet pavements ; and (c) providing adequate dynamic safety of driving. The above safety criteria constitute the core of the overall safety module proposed in this study for classifying road networks or roadway sections (or both), existing or planned, as good, fair, or poor designs. The evaluation process of the safety module, encompassing separate evaluation processes for each of the above safety criteria as well as for the combination of all three criteria, can be done manually by using the Geographic Information System known as SPANS. By using discriminating colors or symbols with SPANS, the resulting separate or combined design safety levels...
European design guidelines explicitly address horizontal design consistency for two-lane, rural r... more European design guidelines explicitly address horizontal design consistency for two-lane, rural roads in an attempt to promote smooth operating speed profiles and, in turn, safe operation. U.S. practice qualitatively advocates consistent alignment but provides little objective guidance to assure that consistency is achieved. This paper presents a procedure for measuring the consistency of horizontal design as defined by operating speed and accidents expected. Operating speeds and accident rates can be predicted for various lane widths based on degree of curve and posted recommended speeds, as derived from measurement of 261 sites in New York state. Guidelines for changes in operating speeds and acceptable accident rates for good, fair, and poor designs are suggested, and various nomographs are developed to evaluate roadway sections based on design parameters. In addition, an example application is provided to illustrate the case of fair design practices. It is concluded that such a ...
Technology has a potentially rich, but largely unrealised, role in teaching and learning. This ro... more Technology has a potentially rich, but largely unrealised, role in teaching and learning. This role is defined variously by what the teacher has available, has had time to learn, or can find an appropriate use for, and by what students have access to, are familiar with, and are willing to use. In all of these ways, technology usually plays an adjunct role to others, more traditional modalities for teaching and learning, including lecture, laboratory, library, textbook, tutorial, and practicum. Researchers perceive problems arising from the significant cultural and organisational differences affecting the management and leadership environment of the modern higher education institutions integrating technology in relation to traditional higher education institutions. This present study describes and analyzes the culture effects in higher education organisations that are challenging the future pre-eminence of the use of technological tools in teaching in higher education. This study tri...
This study analyzes and identifies unique factors that affect the traffic safety in the United St... more This study analyzes and identifies unique factors that affect the traffic safety in the United States and Western European countries. The emphasis is on: 1) identifying and isolating major problem areas in traffic safety, 2) understanding underlying causal factors and their relationships to the problem areas, and 3) recommending potential countermeasures that may be effective in alleviating the safety problems. To achieve the objectives stated previously, this study includes: 1) the identification of the similarities and dissimilarities among the subject countries, and showing quantitatively the changes in fatalities and fatality rates as experienced from 1970 through 1980 by each country, and 2) the determination of the specific safety improvement needs for each of the subject countries. To accomplish this, t-tests are conducted to determine whether there are real changes in the accident trends. These changes are analyzed respectively for the road user groups and age groups for the...