Meeghat Habibian

Amirkabir University of Technology | TUS · Department of Civil and Environmental Engineering

The COVID-19 pandemic has had an unprecedented impact on the transportation sector, with changes expected to last for a long time. Following the reopening phases, increased use of private vehicles and continued avoidance of exposure to the infectious virus in public transportation exacerbated urban traffic and environmental problems. The paper aims...

In order to improve public transit as a customer-oriented service, it is essential to evaluate service quality from the customers' perspective. Various groups of passengers perceive service quality differently based on their demographic and trip characteristics. In addition to a naïve market segmentation which is based on pre-defined groups, this s...

Service providers must understand customers’ preferences to improve public transportation market share. Indeed, most public transportation customer satisfaction literature has focused on developed countries, and there are considerable differences between the available modes and the expectations of public transportation users in developed and develo...

The main competitor of air transportation is High-Speed Railway (HSR). However, in an oil-exporting country with low fuel prices and strong car dependence, HSR can face fierce competition with private cars and even buses. There is little previous research that forecast modal share in this situation. The case study of this research is the Tehran-Ham...

One important research question related to walking for transportation is whether people like to walk more or not. Past research on walking-related travel behavior has mainly considered objective measures of walking, quantifying trips that were actually taken. This paper emphasized tendency to walk more (TWM) as a subjective measure of walking in tr...

Speeding -as the most frequent driving violation- has been the cause of 21% accidents in the first three months of 1398 in Tehran. Speeding behavior has roots in drivers’ attributes and attitudes toward driving, which has not been studied enough for drivers in Tehran. This study examined the association between speeding violation frequency and driv...

Nowadays, Transportation is a basic requirement for citizens which causes many traffic and health problems. According to a number of problems raising by motorized vehicle usage, transportation planners are trying to persuade people to use active transportation modes such as walking. Therefore, it is important to investigate the effective factors on...

Improving the public transportation system to compete with the private modes requires an understanding of passenger perceptions of the service quality (SQ). In the literature, various models have been developed to identify effective SQ attributes and to assess their relationship with passenger satisfaction. However, most of them either ignore the s...

This paper proposes a model to find the optimal location of autonomous vehicle lanes in a transportation network consisting of both Autonomous Vehicles (AVs) and Human-Driven Vehicles (HDVs) while accounting for the roadway capacity variation. The main contribution of the model is considering a generalized definition of capacity as a function of AV...

Studies on the quality of service thrive to quantify passenger satisfaction of public transport services which is a key factor in how these services are used. Service quality evaluation is performed by means of objective and subjective approaches. Considering that people are attracted to public transport services based on their own perception, subj...

The aim of this paper is to identify effective factors on motorcycle usage time in work-tours. To do so, a survey on motorcyclists whose workplaces are in the Central Business District (CBD) of Tehran is conducted. Due to the connected nature of daily activities, travel pattern usually has tour shape, so tour-based approach is employed in this stud...

Nowadays, promoting active transportation in form of walking attracts a lot of interest to attain sustainable transportation. Therefore, transportation planners are looking for factors affecting active travel mode choice, especially walking. Generally, the literature shows that factors affect walking choice behavior could be categorized in form of...

Reliable, efficient, and environmental transportation systems will greatly contribute to the development of eco-friendly economies around the world. Moreover, the railway has a key role in the transportation of any country because it can transport heavy traffic volumes with the least noise and air pollution. On the other hand, in the last few decad...

Since life is growing complex and time is a finite resource, the propensity of people to link several trips with different purposes increases. The sequence of these linked trips that starts and ends at home including a work stop is defined as a work tour. The number of stops in a tour introduces an index which is called tour complexity. The analysi...

Tehran, the capital city of Iran, is amongst many cities around the world which suffers from air pollution and the rapid growth of gasoline-powered motorcycles’ usage has considerably contributed to this increased air pollution in this city. To cope with this problem, changing the motorcyclists' travel behavior, by increasing their awareness, could...

Improving the public transportation system in order to compete with the private modes requires an understanding of passengers’ perceptions of the service quality (SQ). In this paper, an ordered logit model considering service quality latent variables is calibrated to model passengers’ satisfaction in Tehran metro line 3. The goal is to identify the...

این پروژه مربوط به ارزیابی معیارهای پیاده‌مداری شهر در مقیاس محلات می‌شد که با همکاری با دکتر حبیبیان و توسط ایشان در مرکز مطالعات و برنامه‌ریزی شهر تهران ارائه گردید.

Women’s perceptions of service quality in transit: A case study of Tehran Metro

Most walking-related travel behaviour studies have defined walking behaviour using a single measure of travel and have almost focused on single trips actually taken rather than entire tour. These studies usually neglect the mediating role and the indirect effect of explanatory factors on walking behaviour. This paper tries to understand the walking...

Achieving the lowest emission rate of urban air pollutants, requires an effective management of mobile air polluting sources. To address this type of management, not only high quality vehicles should be recruited but also the quality of transportation such as amount, slope, and traffic patterns (i.e., steady vs. interrupted flow) should be consider...

Nowadays, a number of Iranian cities are facing major air pollution problems. In several metropolises such as Tehran, Isfahan, and Karaj, Air Quality Index (AQI) is sometimes determined higher than 150 which is reported as extremely unhealthy to dangerous. Old locomotives which are serving intercity rail passengers are the main source of air pollut...

Nowadays, a number of Iranian cities are facing major air pollution problems. In several metropolises such as Tehran, Isfahan, and Karaj, Air Quality Index (AQI) is sometimes determined higher than 150 which is reported as extremely unhealthy to dangerous. Old locomotives which are serving intercity rail passengers are the main source of air pollut...

Pedestrian destination choice models are among the issues that have not been adequately addressed by transportation researchers. Several issues should be considered in order to develop a pedestrian destination choice model, including the method used to generate destination choice sets as well as the specification of different environmental variable...

Exploring the factors affecting walking behavior has become an interesting issue among sustainable transportation researchers. However, walking studies which have examined gender in relation to trip purpose are limited. This research investigated and compared walking behaviors across genders for two different trip purposes, work and shopping trips...

By the growing demand for transportation, and the paucity of appropriate infrastructures of public transit, the Gasoline-powered Motorcycle (GM) has become a popular choice due to its maneuverability in narrow and congested streets and low out-of-pocket costs. However, this two-wheeled mode of transportation has exacerbated air pollution, highlight...

Buses in the most cities of Iran are a main source of air pollution due to the high age and the fuel type of them (mainly diesel fuel) and the amount of emission produced by them can have a significant impact on the air quality of these cities. Therefore, in the present study, the bus transit system of the Karaj metropolitan area has been considere...

By the escalation of dilemmas caused by motorcycles such as air and noise pollution, congestion, and crash injuries, which result in adverse impacts on physical and mental health of citizens, most of the studies in transportation scope have focused on the ownership of motorcycles. However, it seems that these studies have ignored this fact that som...

Development of non-motorized modes of transportation has recently become a common trait among urban planners toward sustainable transportation, and walkability has been introduced as one of the most interesting concepts in the past two decades. A number of researchers put efforts to develop walkability indices (WIs) to show the status of walkabilit...

Traffic management in cities necessitates the implementation of comprehensive strategies and correct scheduling of demand management in order to reach sustainable development goals. Transportation is the main contributor to urban air pollution imposing high cost to communities. Emission from mobile sources in Tehran is responsible for 85 percent of...

Nowadays, there is a growing interest in applying the concept of sustainable transportation around the world. However, measuring the level of sustainability of transportation for a particular territory is an issue which is not well addressed due to several numbers of various indicators. Sustainable transportation encompasses environmental, social a...

Promoting transit services requires a deep understanding of service quality and in turn factors that affect passenger satisfaction. There are objective and subjective means to evaluate service quality. Since people are attracted to transit services based on their own subjective perception, the judgment provided by transit users is what matters. How...

Educational trips are one of the main parts of urban trips. It includes school and university trips. University students are a social group with complicated and unique travel behaviour. They have variable class schedules and considerable freedom in the campus environment. Therefore, planning university students’ trip is a vital part of urban planni...

Due to an increase in motorized trips and a decline in individuals’ physical activity, studying factors that increase active transportation modes in school trips have captured significant attention in recent years. However, research on walking mode choice behavior across different age groups remains limited. The main objective in this study was to...

Nowadays; cycling is considered as a solution to address traffic congestion problem and its consequences, especially air pollution. However, this mode requires suitable facilities including bicycle paths. This paper discusses prioritizing of five bicycle paths in district 1 of the city of Shiraz, Iran, regarding "Safety", "Appeal" and "Mobility" cr...

Because of the important role of Iran railway network in in-land freight transportation, appropriate freight-wagon grouping and train scheduling can significantly reduce the amount of emissions as well as fuel consumption. This paper evaluates the impact of different freight-wagon grouping and different train scheduling policies by using a simulati...

Modeling commuters’ choice behavior in response to transportation demand management (TDM) helps in predicting the consequences of TDM policies. Although research looking at choice behavior has evolved to investigate preference heterogeneity in response to factors influencing mode choice, as far as we know, no study has considered taste variation ac...

Although walking behavior in school trips has been the subject of debate in developed countries in recent years, much remains to be learned about this subject in developing countries. Moreover, despite exploring effects of various factors, research on walking mode choice behavior across genders remains quite limited. The main purpose of this study...

Although walking behavior has been the subject of debate in developed countries, much remains to be learned about this subject in developing countries. Furthermore, it seems likely that the effect of different factors on choosing walking as a commute mode varies across different job groups. Therefore, this research investigated and compared walking...

Nowadays, there is a growing interest in federal governments to evaluate and measure performance of states transportation systems in order to budget allocation. In this study, 89 measures belonging to five elements of a transportation system (i.e., input, output, utility, market and environment) are investigated. Combining the elements, a transport...

Many cities around the world suffer from air pollution but Tehran is among the worst. Tehran suffers severely from congestion and air pollution, which is caused primarily by private vehicles. To mitigate these problems, Transportation Demand Management (TDM) policies should be instituted across the city to reduce private car usage. However, the acc...

A simple work-tour is a sequence of two trips that starts and ends at home including a stop at workplace. Therefore, transportation demand management (TDM) policies are expected to be more effective for car commuters with simple work-tours due to its lower constraints. In this research, the impacts of five TDM policies are assessed on car commuters...

Nowadays, while there are a number of definitions have been introduced for the concept of zoning, there is no general consensus due to different disciplines adopt this term. In the field of planning, the zoning is a conscious and contemplative process to detect homogenous areas by an authority to allocate certain kinds of resources to them. Therefo...

Traffic congestion as a source of daily delays, degradation of environmental quality, and nonrenewable energy consumption is said to be a major trouble in most of the world’s cities. Being discontent about traffic congestion usually persuades transportation policymakers to propose measures to reduce it. Many studies have shown that individuals’ res...

In this paper, the influence of traffic ethics on driving is investigated and modeled from sociological perspective. The model is developed based on the survey results of 215 drivers who received driving tickets in Tehran, Iran. In this paper, the traffic ethics is considered as a criterion of drivers’ obligation to obey traffic rules. To evaluate...

Increases in motorized trips and declines in individuals' physical activity have become major challenges for many communities. Many studies have investigated the public health, economic, environmental, transportation, and other benefits or promoting nonmotorizcd modes of transportation. Studies have suggested a range of policies to be considered by...

Crash data availability is a significant requirement for identifying hazardous roads. However, for roads with poor data sets or no crash record, a method is needed to find and rank road segments independent of the crash records. In this paper, an auditing based methodology is proposed to determine the hazardous locations. A Rural road is investigat...

—In this paper, the influence of traffic ethics on driving violations is investigated and modeled from sociological perspective. The driving violation of male and female drivers is separately analyzed in this research. The models are developed based on the survey results of 215 drivers who received driving tickets in Tehran. In this paper, the traf...

Many studies have shown that individuals' responses to urban traffic congestion, as usually assumed by policymakers, are significantly different from their respected actual behavior. This paper adopts a behavioral approach to examine this difference, using the design of experiment principles and binary logit models. In this approach, five transport...

This paper examines the role of transportation demand management (TDM) policies on commuters’ mode choice in the city of Tehran. The analysis is based on the results of a stated preferences survey developed through the design of experiments approach. Five policies covering increasing parking cost, increasing fuel cost, cordon pricing, transit time...

Today, a transportation demand management (TDM) approach favoring efficient use of transportation resources has been implemented among many cities of the world. Although the majority of TDM policies are justified at the time of implementation, they have become part of cities' long-term regulations due to a lack of innovative and alternative approac...

Traffic engineers select at-grade intersection design alternatives on the basis of operational measures such as delay, safety indices, and costs. In the cases of highways and major arterial roadways, the cost of constructing interchanges (grade separated intersections) is often not justified; yet the operational delays associated with signalized in...

The integration of Transportation Demand Management (TDM) policies is a challenging issue in urban policy studies. Interactions between policies that are not addressed broadly in the integration context play a main role in the outcome of TDM policy packages. However, different individual daily trip purposes, city development, variations in land use...