scholarly journals Air passenger travel forecasting model based on both dynamical individual behavior and social influence force

2019 ◽  
Vol 13 ◽  
pp. 174830261988139
Author(s):  
Jialiang Wang ◽  
Xiaoqing Liu ◽  
Jianli Ding

Air passenger travel forecasting is necessary and becomes very valuable for airline company, because accurately obtaining practical requirements of air passenger, which can not only help airline company to improve air passenger satisfaction degree and enhance user experience so as to gain huge revenue, but also can help air passengers discover suitable travel plan quickly. In order to generate the air passenger travel forecasting model, this paper aims to analyze the internal driving force and social affect factor simultaneously, which was based on dynamical personal behaviors and air passenger social relationship exactly. In particular, three aspects in terms of dynamical personal behaviors, effect of fellow air passenger, and influence of similar air passenger are all considered simultaneously, and then the data from these aspects are further trained so as to obtain weight allocation in many different scenarios. Besides, workday and non-workday are separately considered in order to make the forecasting model feasible and effective.

10.2172/97193 ◽  
1995 ◽  
Author(s):  
D.L. Greene ◽  
Shih-Miao Chin ◽  
R. Gibson

2018 ◽  
Vol 4 (4) ◽  
pp. 796 ◽  
Author(s):  
Tanay Datta Chowdhury ◽  
Muhammad Saif Uddin ◽  
Debolina Datta ◽  
Mohammad Azazul Kabir Taraz

Paratransit modes are familiar modes of transportation in Sylhet city and across Bangladesh. Field investigation marked the existence of motorized, non-motorized and battery driven paratransit modes across city. Though non-motorized vehicles such as rickshaws and easy bike were found in every survey location but people preferred motorized transportation. Young age range people mostly used this media as transportation. Students and service holders were most predominant type of users found from the survey. User satisfaction was used for measuring important characteristics of paratransit modes and the results indicated that about 70% people fall somewhere between satisfied to somewhat satisfied. A Multinomial and an Ordered Logit model were utilized to analyze passenger satisfaction and both of them agreed that female passengers were dissatisfied regarding present paratransit systems. Fitness and cleanliness were considered as influential features of the existing modes. Lack of flexible movement of paratransit modes especially motorized ones around city roads was the main driving force of making the mode unreliable to users. People showed positive attitude towards overall service, safety and security of paratransit vehicles operating in Sylhet city. The fare structure made this transport system popular, but operational shortcomings such as congestion make the prospect of existing modes questionable.


2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Zhiqiang Tian ◽  
Rui Zhang ◽  
Guofeng Sun ◽  
Di Cheng

In order to optimize the passenger train working diagram and improve the passenger satisfaction towards a coordinated optimization problem of departure time domains of multiple passenger trains at a station, the optimization model is designed to maximize the overall passenger travel satisfaction based on the quantification of the level of passenger travel satisfaction. The simulated annealing algorithm is then used to solve the model. Finally, 23 pairs of passenger trains from Chengdu Railway Station are selected as examples to verify the feasibility and effectiveness of the algorithm. The result shows that the model and algorithm proposed in this paper can realize the coordinated optimization of the departure time of multiple trains at a station while considering the passengers’ travel satisfaction, which can provide an effective reference for the compilation of passenger train working diagram.


Author(s):  
Thomas D. Fox ◽  
William Bowlby

Policy makers in many urban areas have begun to embrace the principles of transit-oriented development as a means to create more livable communities and of light rail transit as a means to address congestion and air-quality problems. A policy-oriented screening tool for applying rigorous technical analyses to transit-oriented development policies to give decision makers meaningful information about a wide range of potential land-use, transit service and financing, and parking management policies is described. The decision support tool (DST) uses a simplified version of the regional travel forecasting model and includes an air-quality analysis module. The DST was validated to the Memphis regional travel forecasting model, and enhancements were incorporated for studying the effects of specific land-use, transit, and parking-policy assumptions. DST provides policy-related output data such as percentage of development in the corridor; transit ridership; annual transit operating cost, revenue, deficit, and cost recovery ratio; annual transit capital cost; and air-quality benefits. A sample application of the model for the Poplar Corridor in Memphis, Tennessee, is presented.


Author(s):  
Tai D. Nguyen ◽  
Ronald Gronsky ◽  
Jeffrey B. Kortright

Nanometer period Ru/C multilayers are one of the prime candidates for normal incident reflecting mirrors at wavelengths < 10 nm. Superior performance, which requires uniform layers and smooth interfaces, and high stability of the layered structure under thermal loadings are some of the demands in practical applications. Previous studies however show that the Ru layers in the 2 nm period Ru/C multilayer agglomerate upon moderate annealing, and the layered structure is no longer retained. This agglomeration and crystallization of the Ru layers upon annealing to form almost spherical crystallites is a result of the reduction of surface or interfacial energy from die amorphous high energy non-equilibrium state of the as-prepared sample dirough diffusive arrangements of the atoms. Proposed models for mechanism of thin film agglomeration include one analogous to Rayleigh instability, and grain boundary grooving in polycrystalline films. These models however are not necessarily appropriate to explain for the agglomeration in the sub-nanometer amorphous Ru layers in Ru/C multilayers. The Ru-C phase diagram shows a wide miscible gap, which indicates the preference of phase separation between these two materials and provides an additional driving force for agglomeration. In this paper, we study the evolution of the microstructures and layered structure via in-situ Transmission Electron Microscopy (TEM), and attempt to determine the order of occurence of agglomeration and crystallization in the Ru layers by observing the diffraction patterns.


Author(s):  
P. J. Goodhew

Cavity nucleation and growth at grain and phase boundaries is of concern because it can lead to failure during creep and can lead to embrittlement as a result of radiation damage. Two major types of cavity are usually distinguished: The term bubble is applied to a cavity which contains gas at a pressure which is at least sufficient to support the surface tension (2g/r for a spherical bubble of radius r and surface energy g). The term void is generally applied to any cavity which contains less gas than this, but is not necessarily empty of gas. A void would therefore tend to shrink in the absence of any imposed driving force for growth, whereas a bubble would be stable or would tend to grow. It is widely considered that cavity nucleation always requires the presence of one or more gas atoms. However since it is extremely difficult to prepare experimental materials with a gas impurity concentration lower than their eventual cavity concentration there is little to be gained by debating this point.


2019 ◽  
Author(s):  
Yu Heng Kwan ◽  
Elenore Judy Uy ◽  
Dianne Carro Bautista ◽  
Xiaohui Xin ◽  
Yunshan Xiao ◽  
...  

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