Montasir Abbas's research while affiliated with Virginia Tech (Virginia Polytechnic Institute and State University) and other places

Publications (28)

Preprint
Full-text available
Accurate representation of observed driving behavior is critical for effectively evaluating safety and performance interventions in simulation modeling. In this study, we implement and evaluate a safety-based Optimal Velocity Model (OVM) to provide a high-fidelity replication of safety-critical behavior in microscopic simulation and showcase its im...
Article
Full-text available
Modeling safety-critical driver behavior at signalized intersections needs to account for the driver’s planned decision process, where a driver executes a plan to avoid collision in multiple time steps. Such a process can be embedded in the Optimal Velocity Model (OVM) that traditionally assumes that drivers base their “mental intention” on a dista...
Article
In this study, we assess a cooperative bus-holding transit signal priority strategy (C-BHTSP) in a connected and automated vehicles (CAV) environment. The research objectives of this study are to quantify the benefits of C-BHTSP to transit, its impact on opposing non-transit traffic, and the CAV market penetration rate required to neutralize that i...
Article
Full-text available
As largely documented in the literature, the stark restrictions enforced worldwide in 2020 to curb the COVID-19 pandemic also curtailed the production of air pollutants to some extent. This study investigates the perception of the air pollution as assessed by individuals located in ten countries: Australia, Brazil, China, Ghana, India, Iran, Italy,...
Preprint
In a previous study, we presented VT-Lane, a three-step framework for real-time vehicle detection, tracking, and turn movement classification at urban intersections. In this study, we present a case study incorporating the highly accurate trajectories and movement classification obtained via VT-Lane for the purpose of speed estimation and driver be...
Article
Full-text available
The restrictive measures implemented in response to the COVID-19 pandemic have triggered sudden massive changes to travel behaviors of people all around the world. This study examines the individual mobility patterns for all transport modes (walk, bicycle, motorcycle, car driven alone, car driven in company, bus, subway, tram, train, airplane) befo...
Article
Full-text available
COVID-19 pandemic has heavily impacted the global community. To curb the viral transmission, travel restrictions have been enforced across the world. The dataset documents the mobility disruptions and the modal shifts that have occurred as a consequence of the restrictive measures implemented in ten countries: Australia, Brazil, China, Ghana, India...
Preprint
Over the past decades, the intense emphasis has been placed on the understanding of car-following behavior and the factors that affect it. The car-following process, however, still remains a very complex field of study in spite of all the efforts. This paper focuses on the study of the effect that the class of the vehicle, leading heavy vehicles in...
Article
Full-text available
The dataset deals with the air quality perceived by citizens before and during the enforcement of COVID-19 restrictions in ten countries around the world: Australia, Brazil, China, Ghana, Italy, India, Iran, Norway, South Africa and the United States. An online survey conveniently translated into Chinese, English, Italian, Norwegian, Persian, Portu...
Article
Full-text available
The use of coral sand prepared from cement-stabilized materials can significantly reduce the cost, construction period, and damage to the environment caused by stone mining. The choice of water in mixing and curing the cement-stabilized materials on islands should be considered. Cement-stabilized coral sand was tested in three different preparation...
Conference Paper
Development of integrated mobility and traffic management strategies is an important aspect of the ongoing transition of urban mobility systems. Extending from existing credit schemes, this research presents a system design and evaluation of a framework based on the principle of Universal Basic Mobility. In particular, using premises of long-term c...
Article
Green splits are one of the three important types of control parameter in a modern traffic controller. Few studies have been done on coordinated optimal splits control under the National Electrical Manufacturing Association (NEMA) Standards. We proposed a virtual phase-link concept and used this concept to model urban traffic control under the NEMA...
Article
This paper presents the gamification of transportation engineering education. We identified what the authors deemed to be the key hard concepts in the taught course and designed five web‐games targeting five areas within transportation engineering. The developed games were tested with undergraduate students. The results show that the games can enha...
Article
The semi-actuated coordinated operation mode is a type of signal control where minor approaches are placed with detectors to develop actuated phasing while major movements are coordinated without using detection systems. The objective of this study is to propose a cost-effective approach for reducing delay in the semi-actuated coordinated signal op...
Article
Car-following models, as the essential part of traffic microscopic simulations, have been utilized to analyze and estimate longitudinal drivers' behavior since sixty years ago. The conventional car following models use mathematical formulas to replicate human behavior in the car-following phenomenon. Incapability of these approaches to capturing th...
Conference Paper
Full-text available
The semi-actuated coordinated operation mode is a type of signal control where minor approaches are placed with detectors to develop actuated phasing while major movements are coordinated without using detection systems. The objective of this study is to propose a cost-effective approach for reducing delay in the semi-actuated coordinated signal op...
Conference Paper
Full-text available
Car-following models, as the essential part of traffic microscopic simulations, have been utilized to analyze and estimate longitudinal drivers’ behavior since sixty years ago. The conventional car following models use mathematical formulas to replicate human behavior in the car-following phenomenon. Incapability of these approaches to capturing th...
Conference Paper
Full-text available
Today, a wide range of commercial signal optimization tools have been developed for optimizing traffic signal timing plans. However, incapability of such programs to consider the stochastic variations in traffic conditions calls for integrating optimization techniques with a microscopic simulation environment. In this study, the Particle Swarm Opti...
Conference Paper
Game-based education in transportation has been explored over the past 10 years. Previous research proved that game-based education is an effective way to deliver transportation engineering concepts. However, past research also found that effective education games are difficult to develop. In this work, we used a game engine to develop a multi-leve...

Citations

... This study aims to showcase the improvements that can be achieved in VISSIM simulation of safety-critical behavior utilizing real-time, safety-based driver behavior modeling. The real-time safety-based Optimal Velocity Model, which was proposed in a recent study (2) is calibrated for the site of study using vehicle trajectories extracted from a roadside camera and implemented in VISSIM as an external driver model. We compare the performance of our model to the default VISSIM model in terms of replicating the existing safety-critical behavior at the area of study. ...
... Albeit being proposed since the early 1990s (24), the rapid evolution of Convolutional Neural Networks (CNNs) in the past decade helped establish their place as the undisputed backbone for innumerable architectures that conduct the various aspects of computer vision tasks. Those CV-based methods have been widely adopted for a variety of applications in the transportation field, including traffic speed, turn count, and density estimation (25)(26)(27), safety (28)(29)(30), and autonomous driving (31). The use of CV in transit applications remains extremely rare, with few applications in railway intrusion detection (32), and a recent study by Sipetas et al. (33) who utilized a CV-based video processing component as a part of a larger framework to estimate left-behind subway passengers. ...
... Hu et al. analysed the results of bus delay and person-based delay with TSP and connected vehicle technology [11]. Abdelhalim and Abbas proposed a cooperative bus-holding TSP strategy with consideration of the impact of bus stop and signalized intersection [12]. Emami et al. did a comprehensive review of the development of real-world connected vehicle testbeds around the world [13]. ...
... Table 1 reports the concentration of pollutants in Iran in 2019 and 2020. 35 The average concentration of some main air pollutants (PM2.5, PM10, SO 2 , CO, and NO 2 ) from 2016 to 2020 was investigated in the capital of Iran, Tehran. The results showed that PM10 reduced more than other pollutants. ...
... People gave infection-related J o u r n a l P r e -p r o o f factors priority when choosing transportation modes during the pandemic. The concerns about local infections caused public transit, in which contact with strangers is inevitable, to be considered the riskiest among the intra-city transportation modes (Abdullah et al., 2020;Shamshiripour et al., 2020;Barbieri et al., 2021;Eisenmann et al., 2021;Kamplimath et al., 2021;Przybylowski et al., 2021). The negative perception of public transit during the pandemic hinders vibrant public transit usage. ...
... In a recent study (2), we utilized an extended VT-Lane framework to obtain the trajectories and calibrate a data-driven safety-based driver behavior model for the area of study. Previous works detail the implementation and evaluation of the computer-vision-based trajectory tracking framework (18)(19)(20). Figure 1 shows the area of this study from the perspective of the roadside camera used to obtain the video data, illustrating the NEMA movement enumeration for the site. The traffic volumes and speed distributions obtained from the inference of 1-hour PM traffic footage were modeled in VISSIM alongside the existing on-site signal timing plan illustrated in Figure 2. ...
... To avoid crowded regions, social distance is crucial; consequently, the availability of various transit choices within the country might assist tourists in deciding where to visit (Orîndaru et al., 2021). According to another study the transportation network is subject to disruption due to movement limitations (Barbieri et al., 2020). However, taking public transportation increases the risk of COVID-19 infection. ...
... Emerging evidence suggests that the COVID-19 lockdowns have led to a temporary reduction in traffic volume and created a new form of "traffic calming", which has served to substantially reduce noise (Aletta et al., 2020;Barbieri et al., 2020;Derryberry et al., 2020;Parker et al., 2020). Soundscapes, defined as the relationship between a landscape and the composition of its sounds (Pijanowski et al., 2011), have become dominated by human-produced sounds radiating from a variety of sources, such as machines, sirens, and the friction of tyres rotating on pavement, especially in urban areas (Barber et al., 2010). ...
... In a recent study (2), we utilized an extended VT-Lane framework to obtain the trajectories and calibrate a data-driven safety-based driver behavior model for the area of study. Previous works detail the implementation and evaluation of the computer-vision-based trajectory tracking framework (18)(19)(20). Figure 1 shows the area of this study from the perspective of the roadside camera used to obtain the video data, illustrating the NEMA movement enumeration for the site. The traffic volumes and speed distributions obtained from the inference of 1-hour PM traffic footage were modeled in VISSIM alongside the existing on-site signal timing plan illustrated in Figure 2. ...
... Additionally, the CS has a greater depth below the road surface and its temperature change is relatively low, which results in a relatively slower cement hydration reaction. The backcalculated modulus can better reflect the mechanical properties of the CBG and CS illustrated in the previous research (Chen et al. 2020). ...