Abstract: In this study, we address the trajectory tracking control problem for stratospheric airships, characterized by parameter uncertainties and external disturbances. Initially, a mathematical model of the airship is constructed, ...

Abstract: Crashes present different collision types at freeway diverge areas. The research reported in this paper applies the multivariate modeling technique to evaluate the crash risks by collision type. Three years crash data are ...

Abstract: The combined use of a public bicycle system (PBS) and transit is considered a green and efficient travel mode, yet few studies have focused on users’ perceptions of this integrated mode. This study investigated commuters ...

Abstract: A two-lane highway lane-closure work zone is a unique work-zone type because of its traffic impact. When one lane of traffic is blocked, it is necessary to implement a traffic control strategy to effectively serve bidirectional ...

Abstract: The combined use of a public bicycle system (PBS) and transit is considered a green and efficient travel mode, yet few studies have focused on users’ perceptions of this integrated mode. This study investigated commuters ...

Abstract: Reinforced concrete (RC) buildings constructed before introducing ductile design requirements may exhibit undesirable seismic behavior. One such vulnerability is the lack of confinement to end regions that may lead to ...

Abstract: This study investigates a novel retrofitting technique to prevent premature axial failure and collapse of RC walls during earthquakes, attributed to inadequate compressive strain capacity in boundary regions. The technique ...

Abstract: Bicycle passing maneuvers represent interferences between bicycle travelers and are important operational attributes of bicycle traffic. The number of bicycle passing maneuvers has been used to evaluate the level of service ...

Abstract: Vertical curve features on interstate highways greatly affect traffic operations and vehicle performance and, thus, could have an impact on the occurrence of traffic crashes. Most studies to date only considered linear ...

Abstract: In the framework of limit analysis, most previous studies of nonhomogeneous slopes have only involved the spatial variation of cohesion, whereas cases involving the spatially varying friction angle have rarely been studied. ...