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This study explores the approaches used by airlines in setting flight times. It highlights the need to balance operational and strategic factors, such as optimizing the use of resources - including aircraft, crew, and fuel - and managing…

综合经济学 · 经济学 2024-02-21 Ana B. R. Eufrásio , Alessandro V. M. Oliveira

A statistical analysis is performed for a random unrestricted local crew scheduling problem, expressed in terms of pairing arrivals with departures. The analysis is aimed at understanding the structure of similar problems with global…

无序系统与神经网络 · 物理学 2020-12-23 M. Lagerholm , C. Peterson , B. Söderberg

To enhance the evacuation efficiency in partially observable asymmetric-exit evacuation under guidance, a general framework of the dynamic guiding assistant system is presented to investigate the effect of density control. In this…

物理与社会 · 物理学 2021-11-16 Fengqiang Gao , Yuyue Yan , Zhihao Chen , Linxiao Zheng , Huan Ren

To investigate the evacuation behaviors of pedestrians considering action of the guard and develop an effective evacuation strategy in the artificial attack, an extended floor field model was proposed. In this model, the assault on…

元胞自动机与格子气 · 物理学 2019-02-20 Chang-kun Chen , Yun-he Tong

The issues in air traffic control have so far been addressed with the intent to improve resource utilization and achieve an optimized solution with respect to fuel comsumption of aircrafts, efficient usage of the available airspace with…

多智能体系统 · 计算机科学 2011-10-03 Sarvesh Nikumbh , Joeprakash Nathaman , Rahul Vartak

Two major problems in modern cities are air contamination and road congestion. They are closely related and present a similar origin: traffic flow. To face these problems, local governments impose traffic restrictions to prevent the entry…

最优化与控制 · 数学 2021-05-10 N. García-Chan , L. J. Alvarez-Vázquez , A. Martínez , M. E. Vázquez-Méndez

In the upstream of the exit ramp of the expressway, the speed limit difference leads to a significant deceleration of the vehicle in the area adjacent to the off-ramp. The friction coefficient of the road surface decreases under rainy…

系统与控制 · 电气工程与系统科学 2024-03-22 Boyao Peng , Lexing Zhang , Enkai Li

Extreme weather poses significant threats to air transportation systems, causing flight rerouting and cancellations, as well as passenger travel delays. With the growing frequency of extreme weather hazards, it is essential to understand…

物理与社会 · 物理学 2023-04-25 Chia-Wei Hsu , Chenyue Liu , Zhewei Liu , Ali Mostafavi

Ensuring safe separation between aircraft is a critical challenge in air traffic management, particularly in urban air mobility (UAM) environments where high traffic density and low altitudes require precise control. In these environments,…

多智能体系统 · 计算机科学 2025-01-16 Surya Murthy , Tyler Ingebrand , Sophia Smith , Ufuk Topcu , Peng Wei , Natasha Neogi

An airport runway and taxiway (airside) area is a highly dynamic and complex environment featuring interactions between different types of vehicles (speed and dimension), under varying visibility and traffic conditions. Airport ground…

计算机视觉与模式识别 · 计算机科学 2021-07-22 Phat Thai , Sameer Alam , Nimrod Lilith , Phu N. Tran , Binh Nguyen Thanh

Target tracking is an important issue of social security. In order to track a target, traditionally a large amount of surveillance video data need to be uploaded into the cloud for processing and analysis, which put stremendous bandwidth…

信号处理 · 电气工程与系统科学 2019-02-05 Yajun Liu , Congxu Zhu , Xiaoheng Deng , Peiyuan Guan , Zhiwen Wan , Jie Luo , Enlu Liu , Honggang Zhang

In light of the rapid expansion of civil aviation, addressing the delays and congestion phenomena in the vicinity of metroplex caused by the imbalance between air traffic flow and capacity is crucial. This paper first proposes a bi-level…

神经与进化计算 · 计算机科学 2025-02-21 Tonghe li , Jixin Liu , Hao Jiang , Weili Zeng , Lei Yang

This paper considers networks where user traffic is regulated through deterministic traffic profiles, e.g., token buckets, and requires hard delay bounds. The network's goal is to minimize the resources it needs to meet those bounds. The…

网络与互联网体系结构 · 计算机科学 2024-04-16 Jiaming Qiu , Jiayi Son , Roch Guerin , Henry Sariowan

Urban traffic congestion significantly impacts regional air quality and contributes substantially to pollutant emissions. Suburban freeway corridors are a major source of traffic-related emissions, particularly nitrogen oxides (NOx) and…

最优化与控制 · 数学 2025-06-17 Alexander Hammerl , Ravi Seshadri , Thomas Kjær Rasmussen , Otto Anker Nielsen

The objective of this paper is to develop a model and a minimization method to provide flight path optimums reducing aircraft noise in the vicinity of airports. Optimization algorithm has solved a complex optimal control problem, and…

最优化与控制 · 数学 2008-12-18 Lina Abdallah , Mounir Haddou , Salah Khardi

Taxi services are an integral part of urban transport and are a major contributor to air pollution and traffic congestion, which adversely affect human life and health. Sharing taxi rides is one way to reduce the unfavorable effects of cab…

物理与社会 · 物理学 2023-09-15 Maximilian Kaufmann , Jan Nagler

In autonomous mobility-on-demand systems, effectively managing vehicle flows to mitigate induced congestion and ensure efficient operations is imperative for system performance and positive customer experience. Against this background, we…

最优化与控制 · 数学 2025-06-25 Antonio Coppola , Gerhard Hiermann , Dario Paccagnan , Maximilian Schiffer

The rapid growth of population in urban areas is jeopardizing the mobility and air quality worldwide. One of the most notable problems arising is that of traffic congestion which in turn affects air pollution. With the advent of…

物理与社会 · 物理学 2018-04-27 Albert Solé-Ribalta , Sergio Gómez , Alex Arenas

We consider a stochastic, dynamic runway scheduling problem involving aircraft landings on a single runway. Sequencing decisions are made with knowledge of the estimated arrival times (ETAs) of all aircraft due to arrive at the airport, and…

最优化与控制 · 数学 2022-11-16 Rob Shone , Kevin Glazebrook , Konstantinos G. Zografos

We apply Bayesian Linear Regression to estimate the response rate of drivers to variable message signs at Seattle-Tacoma International Airport, or SeaTac. Our approach uses vehicle speed and flow data measured at the entrances of the…

最优化与控制 · 数学 2022-09-09 Soumya Vasisht , Shushman Choudhury , Nawaf Nazir , Stephen Zoepf , Chase Dowling