An Overview of Urban Transport in Sana'a (Yemen)

Self Cite

Nowadays, with the extension of travel distances and accessibility to the various commuting options, multimodal trip proposes as the most competent travelling strategy. However, with increasing in demand by using these options as well as metro, subway, buses, cycles and sidewalk, some problems arose. The import of this quantitative study is to sympathize with the significance of the multimodal as a novel factor in the transportation. In this study, we discussed about cost and time as two significant factors, which affect everybody's life. While improving these two factors have a meaningful effect on encouraging/discouraging private vehicle commuters to switch to public transport. The methodology of this study is an empirical research in which a survey was conducted among the students at The National University of Malaysia with a numeric sample. Hence, a case study based on areas around UKM campus is used to demonstrate the results. What were investigated in this study were the attributes of a reduction in either travel cost or time to promote people who use their own vehicles to shift toward public transportation. The results show that the two factors: time and cost made a significant contribution in motivating private vehicle users to switch public transport. However, the most important purpose of this study was determining the most effective factor (at least based on our condition) since it's not practically possible to have the travel time and cost reduction together.

Section: Introductionmentioning

confidence: 99%

The Comparison of Mode Choice Sensitivity to the Reduction of Travel Time and Cost in Multimodal Trip

Ganji¹,

Eftekhar²,

Shokri³

et al. 2013

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“…Moreover, the income growth makes people prone travel much more (Ismail et al, 2012;Shokri et al, 2009a). Both in developed and developing countries, congestion is a major problem in many urban regions (Altef et al, 2013;Shokri et al, 2010). Traffic congestion occurs when the supply does not meet the demand.…”

Section: Introductionmentioning

confidence: 99%

“…Due to these problems many cities have attempted to restrict the use of private cars in favour of public transport (Steg, 2003). Such polices exist in France (Harrison et al, 1998), Germany (Shokri et al, 2009b;FitzRoy and Smith, 1998), Britain (Altef et al, 2013;Shokri et al, 2012b;Sayed Sharafuddin and Ata Khan, 2000) Netherlands (Cheung andHoen, 1996), Romania (Marshal andMclellan,1998), Australia (Black, 1996) Asian countries and Canada.…”

Section: Introductionmentioning

confidence: 99%

Switching Model for Private Vehicles to Public Transportation System in Case of Sana'a

Altef¹,

Mokhtarian

Shokri³

et al. 2013

Self Cite

The latest statistical information of rapid increase in the use of the personal transport generally in Yemen and especially in Sana'a illustrate that 80% of the registered vehicles in the country are own cars and taxis which numbers have increased tremendously recently which is the cause of the increasing of the traffic congestion, accidents, inadequate parking space and air pollution, among other problems. Earlier studies in this subject, however, focused primarily on car safety issues rather than identifying factors influencing car use and car user mode choice behavior. Due to these problems, the objective of this study is focused on shifting car users to public transport mode transport and discussed the factors to encourage the traveler to shift towards public transport in order to increase road safety and enhance road environment. The data collected and demographic details are analysed like age, gender, educational level and travel behavior in regard to the transportation mode. For a description of the survey data, SPSS is used and logit model is applied. The questionnaire distributed in Yemen which is designed based on social or economic preference, trip characteristics and probability of shifting from private vehicles to public transportation mode. The obtained results reveal that the time and cost and convenient has a momentous role in encouraging the private vehicle users to switch to public transport.

An Overview of Interchanges and Ramps in Case of Sabzevar

Ismail¹,

Zourbakhsh

Eftekhar

et al. 2014

Due to increase of the urbanization and raising the number of the vehicles road traffic incident and delay time in traffic jam are the main concern of countries in all over the world. Due to this problem drivers face an elevated crash risk especially when drivers on freeway ramp interchanges compared with other sections of freeways. The definition of ramp was based on the type and number of lanes used by traffic to freeways. The vehicle accidents are prevalent on highway ramps because of over-speeding, related to the characteristics and circumstances of ramps. Site survey and observation has been done for each location to identify the road condition, adjacent environment and vehicle operations. SPSS is used to analysis the accidents that they are collected data from case study. Descriptive analyses are performed by output of the analyzing data of accident. Differences in accident rates are due to driver behavior, weather potential safety issues were identified at interchanges. Ramps are scheduled for auditing based on descending road speed limits.