长江中下游江海直达运输的现状及发展前景

近年来,随着中国经济的快速发展,能源与建设运输需求与日俱增,为江海直达运输提供了充足货源。文中从长江中下游江海直达运输现状入手,从货源、航道与港口、船型方面分析了长江中下游发展江海直达的条件,结论是长江中下游江海直达运输有广阔的发展前景。     

公交移动电视传播内容的研究

本文主要是对近年来新兴的公交移动电视的节目定位和传播内容进行研究,并结合地方特点给出改进的方案。     

轨道交通对中国城市化的意义

目前中国正处在快速城市化的进程中,需要增加城市的数量和人口、经济规模,并大力发展城市群和城市带,同时需要减小地区间的发展差距.因此构筑一个从城市轨道交通、城际轨道交通到跨区域的高速铁路这一不同层次的结构完善的覆盖全国的轨道交通体系,将有利于促进城市化,为全国广大人民群众提供快捷、舒适、准时、安全的交通保障,并为在全国范围内建设和谐社会做出重大贡献.     

天然气输气场站基础管理思路探讨

阐述了天然气输气场站的重要性，指出了天然气输气场站当前存在的困难和不足，提出了完善基础管理制度，场站管理工作标准化、规范化等七条基础管理思路。     

山东省旅游交通碳排放量估算及结果分析

旅游交通是旅游碳排放最主要的来源,对旅游交通碳排放问题的研究具有重要意义。使用“自下而上法”估算了2000—2013年山东省旅游交通碳排放量。结果表明,2000—2013年间山东省旅游交通碳排放量逐年上升,游客人均旅游交通碳排放量总体呈下降趋势,航空交通和公路交通是旅游交通碳排放量的主要来源,并提出从征收碳税,加大技术研发投入,推广清洁能源,倡导绿色旅游等方面降低山东省旅游交通碳排放的对策建议。     

COVID-19 pandemic and air transportation: Successfully navigating the paper hurricane

This paper aims to analyze and understand the impact of the corona virus disease (COVID-19) on aviation and also the role aviation played in the spread of COVID-19, by reviewing the recent scientific literature. We have collected 110 papers on the subject published in the year 2020 and grouped them according to their major application domain, leading to the following categories: Analysis of the global air transportation system during COVID-19, the impacts on the passenger-centric flight experience, and the long-term impacts on broad aviation. Based on the aggregated reported findings in the literature, this paper concludes with a set of recommendations for future scientific directions; hopefully helping aviation to prepare for a post-COVID-19 world.     

唐山市交通运行现状分析与治理对策研究

唐山城市交通综合治理方案对于促进唐山市城市发展建设具有重要意义,采用对比分析法和案例分析法进行研究。首先对比唐山、石家庄、北京、香港四座城市的交通出行需求和交通设施供给数据指标,分析总结唐山城市交通系统特征;接着,对比分析唐山城市交通系统运行现状,探究唐山城市交通问题的形成机理;最后,针对唐山市交通系统现有问题,借鉴国内外其他地区或城市的成功经验,提出城市交通治理的对策建议。     

Do your neighbors affect your bicycling choice? A spatial probit model for bicycling to The Ohio State University

Neighborhood social effects have recently become a focus of interest in transportation research, whereby transportation mode choice is not only affected by an individual’s characteristics and transportation system conditions, but also by the mode choices of that individual’s social neighbors. This study supports the neighborhood social effects argument, using a spatial econometrics approach and data from The Ohio State University (OSU) 2012 Campus Transportation Survey. A spatial probit model of commuters’ mode choices (bicycling versus non-bicycling) is estimated, accounting for spatial autocorrelation. The results show that the more OSU-affiliated bicycle riders are residing around an individual OSU commuter, the more attractive bicycling becomes, controlling for other factors such as gender, status, proximity to campus, bicycle infrastructure and attitudes. The results indicate that students and males are more likely to commute by bicycles. The probability of choosing bicycles decreases with distance from campus. In addition, proximity to bicycle infrastructure and physical environment both encourage respondents to bicycle. Feeling of safety, travel cost and concern for the environment also affect bicycling choice.     

How air transport connects the world – A new metric of air connectivity and its evolution between 1990 and 2012

To understand as to how scheduled air services link a region to other markets, we develop connectivity and hub centrality metrics. These metrics measure the quality of all scheduled air services in terms of frequency, detours, layover time and destination quality using a valuation scale being derived from observed passenger behavior. By computing yearly scores for 1990 to 2012, we analyze the geography of and trends in worldwide connectivity and hub centrality. While we observe significant growth of aggregate connectivity, the trends are heterogeneous with regard to the type of connectivity as well as time and location.     

Evolution of the international air transportation country network from 2002 to 2013

In this research, we analyze the evolution of the international air transportation country network from 2002 to 2013 with two perspectives: The network’s physical topology and the functional network with traffic information. Our analysis shows that the network is scale-free and has the small-world property. The evolution of triadic properties suggests that the network gears towards symmetric, transitive closure. We find that United States, Great Britain, and France are critical from both perspectives; Surprisingly, South Africa is particularly critical from topological point of view. Furthermore, topological and functional criticality are highly correlated to the GDP of a country.