فهرست مطالب

نشریه مهندسی ترافیک
پیاپی 52 (بهار 1392)

72 صفحه، بهای روی جلد: 10,000ريال
تاریخ انتشار: 1392/02/10
تعداد عناوین: 11

فارسی
English

انتخاب همه

Classification of Recent Approaches in Road Safety Research

Mahmoud Saffarzadeh, Sina Sahebi*, Mohsen Fallah Zavareh Page 5

Large number of road crashes and casualties in Iran indicates that the numerous road safety researches undertaken so far have not been effectively applicable. To achieve creditable progress in road safety in practice, a broad revision in orientation towards research on road safety is required. Traffic safety is a multidisciplinary subject and research field on road safety consists of a wide range of contexts. Therefore, road safety researcher should have a decent thinking order in the early stages of the project when research scope and limitations are proposed. This study aims to classify recent approaches used in research works reported in international peer-reviewed journals. Exploring the literature, the authors have classified the recent research works on road safety into four categories, namely crash data analysis, non-crash data analysis, road safety evaluation and road safety surveillance. The fourfold intellectual model presented in this paper readily enables the researchers to appraise their orientation properly towards the road safety problem they are dealing with, in order to find appropriate potential justifications. The model can also offer an examination tool to measure the level of correspondence between the problem and the proposed methodology by the researcher. Finally, the model provides the researchers with appropriate means to find the study scopes and limits.
Keywords: road crash, road safety modeling, classification

Abstract View Paper Original: Persian
Investigating the effect of the manner of parking pricing on the demand for vehicles use (Case study: Ahwaz)

Hojjatollah Soleimani, Mahdi Ostad Jafari, Hamed Amini Shirazi, Mahmood Karamroodi Page 11

The annual increment of owning and utilizing vehicles has intensified environmental problems and has led to new challenges in the area of traffic, specifically the management of the side parking and its pricing. In recent years, various and temporary policies have led to the bewilderment of the users and reduction of the efficiency of side parking management. Purpose of this research is to investigate the effect of the manner of parking pricing on the demand for the use of vehicles. Two scenarios of pricing with fixed rate and progressive manner have been taken into account and implemented on three major streets in Ahwaz for a period of 45 days. After collecting data in different hours and analyzing them, the effect of pricing scenarios on the ratio of parking demand to parking supply has been studied and reduction of stopping time has been calculated. The results of the analysis demonstrate the significant effect of the management of side parking with progressive price on reduction of stopping time on the streets having high demand of parking.

Keywords: side parking, pricing, Scenario, Ahwaz

Abstract View Paper Original: Persian
Analyzing the Effect of Training on Taxi Driver's Traffic Knowledge and Efficiency (Case Study of Tehran City)

Babak Mirbaha*, Kamran Rahimi, Shahab Hasanpour Page 18

The growing population in cities and increasing demand for transportation has made public transportation a very favorite mode of transportation. Managing the operation of taxis as a paratransit mode of transportation is one of the most effective methods of mitigating congestion and traffic flow pauses. Taxi drivers, as the most important members of this mode of transportation, play a vital role. Qualified drivers who are acquainted with technical and social techniques improve the advantages of this mode of transportation in addition to enhancement of passenger safety. The Municipality of Tehran has developed relevant training courses in different regions in Tehran. In this research, the effect of these courses on drivers’ knowledge has been evaluated based on random samples collected from the taxi drivers. Also, correlation and effect of different parameters on drivers training level have been evaluated.
Keywords: Training, Evaluation, Taxi Drivers

Abstract View Paper Original: Persian
A Multi-class Paired Combinatorial Logit Traffic Assignment Model for Assessing Benefits of Travelers Information Systems in Transportation Networks

Milad Haghani*, Hedayat. Z. Aashtian Page 22

Limited capacity of transportation infrastructures for development of new facilities and expansion of the capacity of the current facilities, in addition to the high cost of so many supply management policies, whether in the supplier’s or the transportation services user’s view, suggest to the transportation planners the fundamental necessity of referring to demand management policies. The growing rate of implementing travel time information systems, in order to enhance the performance and level of service within transportation networks, has stimulated planners to generate more sensitive models with capability of quantitatively assessing the benefits of introducing traveler information systems. A superiority of stochastic approach of traffic assignment is its higher flexibility in modeling commute behaviors than a deterministic model provides. In order to demonstrate this potential flexibility, we have suggested a multi-class version of stochastic traffic assignment with paired combinatorial logit route choice kernel—one of the most advanced discrete choice models applied in network analysis—being able to evaluate benefits of serving transportation networks by traveler information systems.

Abstract View Paper Original: Persian
A RESEARCH ON THE KEY SUCCESS FACTORS OF URBAN TRAFFIC IN TEHRAN METROPOLIS-WITH THE CONCEPT OF Rules, Regulations and Organization's Interaction

Amir Ali Torbati* Page 29

In this Article, six key factors which grant success in achiving the goals of a human-based, strategic metropolitan development plan of Tehran metropolis with the concept of urban traffic management has been discussed.The key point is that ignoring these factors could deteriorate urban development indexes, influense human life and cause major damages to sustainable developement. A survey was done to find causes based on major traffic expert's opinions. The best practices available in literature have been reviewed and four key success factors have been found as objective problems, structural problems, environmental and social problems, behaivioral problems, and finally, ignoring principals of urban development whitch is known as a subcategory of behaivioral problems. Based on the outcomes, effect of environmental and social problems such as those related to developing social knowledge and culture in the related items in the field of traffic on fulfillment of goals has been proved. The research helps urban strategists with taking a better role to tackle traffic problems based on human points of view.

Abstract View Paper Original: Persian
Modeling mode choice in short trips to Tehran central: Investigating the role of transportation demand management policies on private car usage

Meeghat Habibian*, Samira Dibaj, Yalda Rahmati Page 41

Congestion due to the use of private cars is a common problem for large cities and imposes environmental and social costs. Transportation demand management (TDM), therefore, refers to an approach which directs to a more efficient use of urban transportation resources. Typically, reduction in private car use is the main goal of this approach. A major part of daily car usage in cities is due to commuters’ short trips which are more subjected to mode change because of having fewer constraints. This study focuses on managing the demand for short trips whose destinations are Tehran central. Two pull policies (i.e. transit time reduction and transit access improvement) and three push policies (i.e. increasing fuel cost, increasing parking cost, and cordon pricing) are investigated on 126 commuters whose workplaces are in Tehran central and their driving distance is less than eight kilometers. Adopting an approach, namely multi-instrumentality, design of this study is enhanced by considering interactions of TDM policies. By developing a behavioral mode choice model in the form of multinomial logit, significant transportation-related variables are discovered and interpreted, respectively. The application of model regarding the effect of cordon pricing policy on private car usage is also presented.
Keywords: transportation demand management policy, short trips, policy making, logit model

Abstract View Paper Original: Persian
Urban transportation system costs for Tehran in 2011

Morteza Khashaypoor*, Mahdi Abedini, Shervin Babaei Page 48

In order to achieve economical and social development, especially in the case of transportation systems, urban policy makers have the challenge of decision-making and the choice of economical and social projects to invest in. Every decision is made to generate the most profit for the city and eventually the country, through limited resources and investments. In order to facilitate the process of economical decision-making, 10 categorized costs, imposed in this study by transportation sector (including 10 transportation modes) for Tehran city in 2011, have been calculated per passenger-kilometer at peak and off-peak hours. Then, system costs due to each trip made with the designated mode have been specified. It has been concluded that private vehicles and minibuses are the most expensive modes whereas walking, biking and subway are the least expensive ones for making a trip in Tehran city in 2011 at peak and off-peak hours.
Keywords: trip system cost, travel time cost in peak, off peak hours, transportation modes

Abstract View Paper Original: Persian

علمی مصوب

نشریه مهندسی ترافیک

Journal of Traffic Engineering

فصلنامه فنی مهندسی

آخرین شماره | آرشیو

ISSN: 2322-1143

صاحب امتیاز:

سازمان حمل و نقل و ترافیک شهرداری تهران

مدیر مسئول:

دکتر سید مجتبی شفیعی

سردبیر:

دکتر افشین شریعت مهیمنی

تلفن نشریه: ۰۲۱-۸۲۸۸۳۳۸۶

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فهرست مطالب

نشریه مهندسی ترافیک پیاپی 52 (بهار 1392)

نشریه مهندسی ترافیک

Journal of Traffic Engineering

نشریه مهندسی ترافیک
پیاپی 52 (بهار 1392)