Papers by Hussin A.M Yahia
Jurnal Teknologi, 2014
Traffic Network Study Tool Version 7F software (TRANSYT-7F) is one of the traffic programs used i... more Traffic Network Study Tool Version 7F software (TRANSYT-7F) is one of the traffic programs used in analyzing and evaluating the performance of road junction networks based on simulation and signal timing optimization. This paper describes the study conducted during evening peak periods in two cities in Malaysia: Shah Alam and Petaling Jaya. The main objectives of this study are to evaluate and compare the performance of road junction networks in Petaling Jaya and Shah Alam cities using TRANSYT-7F software, the performance of road networks such as; Total Travel Times (TTT), Average Delays (AVD), System Wide Travelling Speed (SWTS), Operating Cost (OPC), Level Of Service (LOS), Fuel Consumption (FUC) and Performance Index (PI). The results obtained have shown a clear indication that the software is able to improve the performance of road junction networks in Shah Alam and Petaling Jaya. TRANSYT-7F had increased the SWS in rush hours in various study fields, where the percentage of improvement in the Shah Alam city is up to 23% as well as the Petaling Jaya city is up to 41%. On the other hand, TRANSYT-7F had reduced the FUC up to 33% in Shah Alam and 54% in Petaling Jaya. Moreover, a reduction of PI is nearly 16% and 33% in both cities respectively. Keywords: TRANSYT-7F; average delays; level of service; travelling speed; fuel consumption and performance index
The sudden increase in the use of private vehicles contributed to the increase in traffic congest... more The sudden increase in the use of private vehicles contributed to the increase in traffic congestion, road accidents and pollution. The rise in ownership of private vehicles is caused by, among others, the problem of public transports being unable to fulfil the public’s needs. This made the commuters prefer to use their own vehicles rather than public transports. Based on this scenario, a study has been conducted particularly in UKM (Universiti Kebangsaan Malaysia), to study the factors that can diminish the problem of traffic congestion. The main objective of this study is to form a model of shifts of transportation modes from private vehicles to public transports (buses) based on the ‘fuel price increase’ factor (Malaysian Ringgit) to see the change in vehicle preference. This study has succesfully produced a model that relates the fuel price to modes of transportation shift by obtaining a correlation exceeding 0.9. The test of sensitivity for the model showed that the rate of fuel price hike influenced at least 88% of private vehicle users to shift to public transports if the fuel price reached RM2.75. From this study, it can also be concluded that the effects of fuel price increase influenced the shift of preference from private to public transports with the types of vehicles and the rate of price increase as variables.
Delays represent one of the indirect costs in terms of frustration, loss of time and discomfort t... more Delays represent one of the indirect costs in terms of frustration, loss of time and discomfort to the drivers. On the other hand, it represents a direct cost in terms of fuel consumption/wastage on road networks during idleness and inactivity. Extreme delay at signalized intersections reflects the incompetence in the signal timing because of consecutive signalized intersections on the particular site. The traffic parameters performance is not a feasible method or practice. Furthermore, one of the significant ways to improve the performance of the network is by coordinating traffic signal in intersections. This study was done to highlight the ability of improving the level of service (LOS) of four intersections; two of them with four legs and two with three legs as well as two roundabouts in Kuala Lumpur and Petaling Jaya using SIDRA software version 4.0. In addition, the study aims to compare the results between each peak hour in terms of percentage of change in the variables and the delay. Moreover, consideration of geometric delay should be taken into account when comparing delays in peak hours in the morning and the evening peak hours. The results obtained show that the morning period is better than the evening period for the value of delay, queue, journey time and speed that was obtained from practical measuring in the study area. The average reduction of delay in the study area before and after optimization of SIDRA software is from 3489 Sec to 1571 Sec in the morning period as well as 5093 Sec to 1663 Sec in the evening period. The percentage of reduction was about 45% and 33% -respectively.
Road traffic accidents is one of the most important problems facing developing countries; the dea... more Road traffic accidents is one of the most important problems facing developing countries; the death due to traffic accidents around the world is 1.2 million people and between 20 to 50 million people are injured each year. In the World Health Organization (WHO) report issued in 2008, revealed that 50 thousand people died in Libya on the public roads during the period of 1969 to 2009 Libya suffers from the concentration of population in major cities where the Libyan population comprised of 5.125 million people for an area of 1,760,000 square kilometres. The dense population in cities led to congestion and increase number of accidents inside the cities. The purpose of this study is to analysis road accidents in six major cities which recorded the highest number of accidents in recent years, to understand important factors causing accidents and to suggest possible solutions that may reduce traffic accidents.
More than 1.2 million people die in RTAs and between 20 and 50 million people are injured in thes... more More than 1.2 million people die in RTAs and between 20 and 50 million people are injured in these accidents every year around the world. Road traffic accidents are a menace to both developed and developing nations, particularly to the latter. In Libya 50,000 people died because of road accidents from 1966 to 2009. For Libya, road accidents not only represent a social problem in Tripoli, but also indicate an economic problem that costs the country significant amount of money. On the average, traffic accidents in the country have led to the death of six people per day. Thus, Libya has become one of the most affected countries. This number is considered too large for a state whose population does not exceed six million people. This paper examines road accident problems in Tripoli, Libya. The methodologies adopted include desk research and primary data collection that covers accidents, as well as possible preventive measures that can be taken by operators of road transportation systems in Tripoli. The present status of the planning and evaluation of road safety, the causes of accidents and the general preventive measures are also considered. Recommendations on the procedures and interventions that must be implemented by the government to reduce the risk of traffic accidents are presented.
Libya is a developing country aiming to achieve the states of developed nation by 2030. In recent... more Libya is a developing country aiming to achieve the states of developed nation by 2030. In recent years; the volume of vehicles on the road has increase rapidly (of different types and make) and a growing network of roads. This has led to the accidents on the road and costs government a lot of money every year. This study investigated age and gender related differences in driver's attitudes towards violations of traffic laws in Tripoli, Libya. This paper provides additional insight into drivers and knowledge their attitudes by using a survey on Libyan drivers.The results of the study showed that gender and age have significant influence on attitudes and knowledge towards violations and knowledge of traffic laws. Males had a better knowledge on traffic law compared with the female respondents, the women more respect to the rules and traffic signals than men. Explanations and drivers attitude towards road safety as well as knowledge of traffic laws are discussed. Suggestions for further research are also highlighted.
There is a great importance for knowledge and traffic regulations awareness in the reduction of r... more There is a great importance for knowledge and traffic regulations awareness in the reduction of road accidents and especially among young people. The study aims to assess the traffic regulations knowledge and awareness of drivers in city of Tripoli. The survey was distributed to drivers along the roads in the City of Tripoli. Data had shown that a relatively high number of drivers lacked the knowledge of traffic signs. In addition also a low percentage complied with traffic regulations and the use of seatbelts. The best method for promoting traffic awareness was TV programs. The internet and newspapers was considered the least effective method, In spite of the high usage of the internet by young people in Libya. In conclusion, this study showed that drivers in city of Tripoli had the knowledge of wrong driving practices, but they lacked it in traffic regulations and signs. Therefore, the study recommends that safety awareness and knowledge of traffic signals and instructions in an early stage and age should be emphasized with the increase of the enforcement of traffic regulations.
Keywords: Knowledge, traffic safety, traffic accidents and drivers
Traffic Network Study Tool Version 7F software (TRANSYT-7F) is one of the traffic programs used i... more Traffic Network Study Tool Version 7F software (TRANSYT-7F) is one of the traffic programs used in analyzing and evaluating the performance of road junction networks based on simulation and signal timing optimization. This paper describes the study conducted during evening peak periods in two cities in Malaysia: Shah Alam and Petaling Jaya. The main objectives of this study are to evaluate and compare the performance of road junction networks in Petaling Jaya and Shah Alam cities using TRANSYT-7F software, the performance of road networks such as; Total Travel Times (TTT), Average Delays (AVD), System Wide Travelling Speed (SWTS), Operating Cost (OPC), Level Of Service (LOS), Fuel Consumption (FUC) and Performance Index (PI). The results obtained have shown a clear indication that the software is able to improve the performance of road junction networks in Shah Alam and Petaling Jaya. TRANSYT-7F had increased the SWS in rush hours in various study fields, where the percentage of improvement in the Shah Alam city is up to 23% as well as the Petaling Jaya city is up to 41%. On the other hand, TRANSYT-7F had reduced the FUC up to 33% in Shah Alam and 54% in Petaling Jaya. Moreover, a reduction of PI is nearly 16% and 33% in both cities respectively.
Keywords: TRANSYT-7F; average delays; level of service; travelling speed; fuel consumption and performance index
Since the 1987 Brundtland Commission report brought global attention to sustainable development, ... more Since the 1987 Brundtland Commission report brought global attention to sustainable development, many scholars and professionals have worked to apply its principles, notions and strategies in the urban context to transportation. However, sustainable transportation (ST) is a complex and integrated issue. Therefore, explanation of strategies towards ST among educationalist may face several problems due to constraints of information, experience and expertise. Moreover, experienced preceptor may also face other constraints such as the time to deliver the information. However, experts are able to communicate better, determine the transportation impact, provide optimum solutions to transport problems and work towards ST. Transfer of expertise from experts to student and educationalist is difficult in the domain of education. Therefore, there is a need for a system in which experts could share their experience with students in educational field. If no such transfer of expertise and knowledge occurs, the students may get less information and may also face trouble in the future. Documentation, classification and computerization of the knowledge can be very helpful for them. This study describes the development of an expert system that can be used by transportation engineering students as well as novice engineers to implement sustainable urban transportation. The system can also be used as an instructional tool for interested town planner in transportation standpoint. In addition, the system can archive and organize raw knowledge from experts for use by all engineers who working in this field. Besides, domain experts can use the system to share experiences.
More than 1.2 million people die in road accidents
and between 20 and 50 million people get injur... more More than 1.2 million people die in road accidents
and between 20 and 50 million people get injured every year
around the globe. In Libya 50000 people died in road accidents
during the last forty years from 1969 to 2009. This unpleasant
fact was revealed recently in the Global Status Report on Road
Safety released in 2008 by the World Health Organization. In
Libya which is one of the richest and development countries
with only 6 million peoples, suffers from congestions and
increase number of cars and this was accompanied by the
incidents that led to heavy losses in the lives and damages. And
the road traffic accidents in Libya do not represent a social
problem only, but also an economic problem that cost the
country a lot of money, makes it one of the most affected
countries, especially from traffic accidents that lead to the
death of the equivalent to 6 people per day by (The Secretariat
of the Libyan justice). This number is considered too large for
a state that does not exceed the population of more than five
million people. The increasing of traffic accidents in Libya
dramatically might be 25 deaths per day by (The Libyan
Secretariat of Health) in the coming years unless the State
could take measures a real measure. This paper suggests some
solutions that could be take to reduce traffic accidents.
This study aimed to examine the knowledge of traffic rules and laws among a sample of drivers fro... more This study aimed to examine the knowledge of traffic rules and laws among a sample of drivers from the city of Tripoli and their behavior with respect to the same. A random sample of 416 drivers was selected from various regions for Tripoli, namely: Tajura, Abo Saleem, City Centre and Janzour and administered a questionnaire that would elicit and record their knowledge and behavior regarding road rules and regulations. The study revealed that traffic accidents are most affected by and positively, statistically correlated with certain key behavioral variables determinants such as: commitment to the speed limit, respect for traffic signals, compliance with seat belt use, use of mobile phones, driving under psychological stress or when sick and eating while driving. The study also found that 56% are no committed to the speed limit, only 41% were seat-belt compliant while driving and 71% of them used mobile phones while driving. Sixty nine percent of drivers opted financial penalty for mobile phone use during driving, this may be an indication that alternate traffic rules penalties may be enforced to deter drivers from repeat offenses. Thereto, a numbers of recommendations were presented for implementation by the relevant authorities. Overall, the study found that Tripoli drivers' knowledge of/on traffic laws and accident-risks didn't affect their behavior on the road.
This study aims to explore the pattern of road traffic accidents and their causes in Libya compar... more This study aims to explore the pattern of road traffic accidents and their causes in Libya compared to some developed countries. In 2008, 13,725 Injured 2332 killed 13,352 accidents. The data was obtained from General Administration of Traffic and Authorizations in Libya. There was an increase in the number of registered cars as well as
the majority of the deaths comprised of young the people. In the last ten years, there were increase accidents, injuries, fatalities and has become an epidemic to the country. Strictly, application of the traffic lows as well as national media converge on traffic accident improvement comprise should be increased.
Abstract: Road accidents are one of the major challenges faced by most countries worldwide. It ha... more Abstract: Road accidents are one of the major challenges faced by most countries worldwide. It has been recognised as one of the major causes for human and economic losses both in developed and developing countries. Road accidents cause social and economic problems. This study investigated age and gender related differences in driver's attitudes towards violations of traffic laws in Tripoli-Libya. A total of 384 drivers were sampled for the study drawn from, work places as companies and banks in the city center and universities and other gatherings within Tripoli the metropolis. The results of the study showed that age and gender have significant influence on attitudes and knowledge of traffic laws, but not by a large margin. Males had a better knowledge on traffic law compared with the female respondents 74% of male and 61% of female. Implications and explanations for
knowledge of traffic laws as well as traffic safety campaigns and methodological issues are discussed, also
highlighted, suggestions for further research.
The increase in per capita income and low-priced in gasoline have resulted in vehicles easily acq... more The increase in per capita income and low-priced in gasoline have resulted in vehicles easily acquired by individuals in Tripoli, Libya. The increases in vehicles ownership and traffic congestion have caused traffic accidents, fatalities and injuries at alarming rate. Traffic accidents have contributed severe social and economic problem costing the country dearly and lead to the death of 6.5 people per day according to statistics 2010. In Libya having population not exceeding 6 million people, the number of deaths is considered too large. Efforts should be intensify the awareness among drivers and specifically youths because youths are the most vulnerable group and are more prone to accidents due to their well-known inclination and especially in the age group of 25 to 35 Accident involvement rate for male was 49%, but for female 38%. In the coming years if government could not take serious measures to reduce of traffic accidents it may increase to 25 deaths daily.
Abstract: The Economic growth in Libya in recent decades also led to a stunning growth in the num... more Abstract: The Economic growth in Libya in recent decades also led to a stunning growth in the number of vehicles on Libyan roads, which is easily the key factor responsible for an alarming increase in the incidence of traffic accidents. Population congestion and increasing numbers of motor vehicles, which is accompanied by consequent traffic accidents that lead to the loss of life and property. Traffic
accidents in Libya are economic and social problem, burden and loss implied to the country, making Libya one of the worst affected countries in the world with respect to Traffic accidents and injuries that
lead to the death 6.5 people in day - an astounding statistic, given the small population. The dramatic rates of increase in traffic accidents and injuries in Libya Will lead to the deaths of 25 people per day
in the coming years if the government takes appropriate and effective for reduce road traffic accidents. This paper suggests some solutions thereto.
Books by Hussin A.M Yahia
Traffic network study tool, version 7F, TRANSYT-7F is a computer programmer that used to improve ... more Traffic network study tool, version 7F, TRANSYT-7F is a computer programmer that used to improve the traffic flow within an area. It optimises the signal timing for a network of junctions with traffic lights which controlled by fixed-time controller. TRANSYT-7F optimises the degree of saturation, congestion time, fuel consumption, total stops, operating cost, total travel, total delay, average delay and system speed. TRANSYT-7F uses the hill-climbing technique to optimize the traffic flow. TRANSYT-7F optimises the signal timing to give the minimum value of PI. Performance index (PI) represents the system-wide performance that derived from these performance measures known as the Measurement of Effectiveness (MOEs). In This study determines the coordination system pattern of traffic signal for thirteen intersections in Malacca city in Malaysia. Data for vehicles movement were collected using video camera during the evening peak hour. In This study determines the coordination system pattern of traffic signal for thirteen intersections in Malacca city in Malaysia. Data for vehicles movement were collected using video camera during the evening peak hour. In this study had successfully reduced total travel time, veh -hr/hr from 6490 to 1798.
Conference Presentations by Hussin A.M Yahia
More than 1.2 million people die in RTAs and between 20 and 50 million people are injured in thes... more More than 1.2 million people die in RTAs and between 20 and 50 million people are injured in these accidents every year around the world. Road traffic accidents are a menace to both developed and developing nations, particularly to the latter. In Libya 50,000 people died because of road accidents from 1966 to 2009. For Libya, road accidents not only represent a social problem in Tripoli, but also indicate an economic problem that costs the country significant amount of money. On the average, traffic accidents in the country have led to the death of six people per day. Thus, Libya has become one of the most affected countries. This number is considered too large for a state whose population does not exceed six million people. This paper examines road accident problems in Tripoli, Libya. The methodologies adopted include desk research and primary data collection that covers accidents, as well as possible preventive measures that can be taken by operators of road
transportation systems in Tripoli. The present status of the planning and evaluation of road safety, the causes of accidents and the general preventive measures are also considered. Recommendations on the procedures and interventions that must be implemented by the government to reduce the risk
of traffic accidents are presented.
Libya is a developing country aiming to achieve the states of developed nation by 2030. In recent... more Libya is a developing country aiming to achieve the states of developed nation by 2030. In recent
years; the volume of vehicles on the road has increase rapidly (of different types and make) and a
growing network of roads. This has led to the accidents on the road and costs government a lot of
money every year. This study investigated age and gender related differences in driver's attitudes
towards violations of traffic laws in Tripoli, Libya. This paper provides additional insight into
drivers and knowledge their attitudes by using a survey on Libyan drivers.The results of the study
showed that gender and age have significant influence on attitudes and knowledge towards
violations and knowledge of traffic laws. Males had a better knowledge on traffic law compared
with the female respondents, the women more respect to the rules and traffic signals than men.
Explanations and drivers attitude towards road safety as well as knowledge of traffic laws are
discussed. Suggestions for further research are also highlighted.
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Papers by Hussin A.M Yahia
Keywords: Knowledge, traffic safety, traffic accidents and drivers
Keywords: TRANSYT-7F; average delays; level of service; travelling speed; fuel consumption and performance index
and between 20 and 50 million people get injured every year
around the globe. In Libya 50000 people died in road accidents
during the last forty years from 1969 to 2009. This unpleasant
fact was revealed recently in the Global Status Report on Road
Safety released in 2008 by the World Health Organization. In
Libya which is one of the richest and development countries
with only 6 million peoples, suffers from congestions and
increase number of cars and this was accompanied by the
incidents that led to heavy losses in the lives and damages. And
the road traffic accidents in Libya do not represent a social
problem only, but also an economic problem that cost the
country a lot of money, makes it one of the most affected
countries, especially from traffic accidents that lead to the
death of the equivalent to 6 people per day by (The Secretariat
of the Libyan justice). This number is considered too large for
a state that does not exceed the population of more than five
million people. The increasing of traffic accidents in Libya
dramatically might be 25 deaths per day by (The Libyan
Secretariat of Health) in the coming years unless the State
could take measures a real measure. This paper suggests some
solutions that could be take to reduce traffic accidents.
the majority of the deaths comprised of young the people. In the last ten years, there were increase accidents, injuries, fatalities and has become an epidemic to the country. Strictly, application of the traffic lows as well as national media converge on traffic accident improvement comprise should be increased.
knowledge of traffic laws as well as traffic safety campaigns and methodological issues are discussed, also
highlighted, suggestions for further research.
accidents in Libya are economic and social problem, burden and loss implied to the country, making Libya one of the worst affected countries in the world with respect to Traffic accidents and injuries that
lead to the death 6.5 people in day - an astounding statistic, given the small population. The dramatic rates of increase in traffic accidents and injuries in Libya Will lead to the deaths of 25 people per day
in the coming years if the government takes appropriate and effective for reduce road traffic accidents. This paper suggests some solutions thereto.
Books by Hussin A.M Yahia
Conference Presentations by Hussin A.M Yahia
transportation systems in Tripoli. The present status of the planning and evaluation of road safety, the causes of accidents and the general preventive measures are also considered. Recommendations on the procedures and interventions that must be implemented by the government to reduce the risk
of traffic accidents are presented.
years; the volume of vehicles on the road has increase rapidly (of different types and make) and a
growing network of roads. This has led to the accidents on the road and costs government a lot of
money every year. This study investigated age and gender related differences in driver's attitudes
towards violations of traffic laws in Tripoli, Libya. This paper provides additional insight into
drivers and knowledge their attitudes by using a survey on Libyan drivers.The results of the study
showed that gender and age have significant influence on attitudes and knowledge towards
violations and knowledge of traffic laws. Males had a better knowledge on traffic law compared
with the female respondents, the women more respect to the rules and traffic signals than men.
Explanations and drivers attitude towards road safety as well as knowledge of traffic laws are
discussed. Suggestions for further research are also highlighted.
Keywords: Knowledge, traffic safety, traffic accidents and drivers
Keywords: TRANSYT-7F; average delays; level of service; travelling speed; fuel consumption and performance index
and between 20 and 50 million people get injured every year
around the globe. In Libya 50000 people died in road accidents
during the last forty years from 1969 to 2009. This unpleasant
fact was revealed recently in the Global Status Report on Road
Safety released in 2008 by the World Health Organization. In
Libya which is one of the richest and development countries
with only 6 million peoples, suffers from congestions and
increase number of cars and this was accompanied by the
incidents that led to heavy losses in the lives and damages. And
the road traffic accidents in Libya do not represent a social
problem only, but also an economic problem that cost the
country a lot of money, makes it one of the most affected
countries, especially from traffic accidents that lead to the
death of the equivalent to 6 people per day by (The Secretariat
of the Libyan justice). This number is considered too large for
a state that does not exceed the population of more than five
million people. The increasing of traffic accidents in Libya
dramatically might be 25 deaths per day by (The Libyan
Secretariat of Health) in the coming years unless the State
could take measures a real measure. This paper suggests some
solutions that could be take to reduce traffic accidents.
the majority of the deaths comprised of young the people. In the last ten years, there were increase accidents, injuries, fatalities and has become an epidemic to the country. Strictly, application of the traffic lows as well as national media converge on traffic accident improvement comprise should be increased.
knowledge of traffic laws as well as traffic safety campaigns and methodological issues are discussed, also
highlighted, suggestions for further research.
accidents in Libya are economic and social problem, burden and loss implied to the country, making Libya one of the worst affected countries in the world with respect to Traffic accidents and injuries that
lead to the death 6.5 people in day - an astounding statistic, given the small population. The dramatic rates of increase in traffic accidents and injuries in Libya Will lead to the deaths of 25 people per day
in the coming years if the government takes appropriate and effective for reduce road traffic accidents. This paper suggests some solutions thereto.
transportation systems in Tripoli. The present status of the planning and evaluation of road safety, the causes of accidents and the general preventive measures are also considered. Recommendations on the procedures and interventions that must be implemented by the government to reduce the risk
of traffic accidents are presented.
years; the volume of vehicles on the road has increase rapidly (of different types and make) and a
growing network of roads. This has led to the accidents on the road and costs government a lot of
money every year. This study investigated age and gender related differences in driver's attitudes
towards violations of traffic laws in Tripoli, Libya. This paper provides additional insight into
drivers and knowledge their attitudes by using a survey on Libyan drivers.The results of the study
showed that gender and age have significant influence on attitudes and knowledge towards
violations and knowledge of traffic laws. Males had a better knowledge on traffic law compared
with the female respondents, the women more respect to the rules and traffic signals than men.
Explanations and drivers attitude towards road safety as well as knowledge of traffic laws are
discussed. Suggestions for further research are also highlighted.