Fifty years of evolution of the transportation field is revisited at a macro scale using scientometric analysis of all publications in all 39 journals indexed in the category of Transportation by the Web of Science. The size of the literature is estimated to have reached 50,000 documents. At the highest level of aggregation, four major divisions of the literature are differentiated through these analyses, namely (i) network analysis and traffic flow, (ii) economics of transportation and logistics, (iii) travel behaviour, and (iv) road safety. Influential and emerging authors of each division are identified. Temporal trends in transportation research are also investigated via document co-citation analysis. This analysis identifies various major streams of transportation research while determining their approximate time of emergence and duration of activity. It documents topics that have been most trendy at any period of time during the last fifty years. Three clusters associated with the travel behaviour division (collectively embodying topics of land-use, active transportation, residential self-selection, traveller experience/satisfaction, social exclusion and transport/spatial equity), one cluster of statistical modelling of road accidents, and a cluster of network modelling linked predominantly to the notion of macroscopic fundamental diagram demonstrate characteristics of being current hot topics of the field. Three smaller clusters linked predominantly to electric mobility and autonomous/automated vehicles show characteristics of being emerging hot topics. A cluster labelled shared mobility is the youngest emerging cluster. Influential articles within each cluster of references are identified. Additional outcomes are the determination the influential outsiders of the transportation field.

中文翻译：

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交通文献的结构与时空演变

使用科学计量学分析所有 39 种期刊中所有出版物的科学计量分析，在宏观尺度上重新审视了交通领域 50 年的演变。文献规模估计已达到 50,000 篇。在汇总的最高层次上，通过这些分析区分了文献的四个主要部分，即 (i) 网络分析和交通流量，(ii) 运输和物流经济学，(iii) 旅行行为，以及 (iv) 道路安全. 确定了每个部门的有影响力的和新兴的作者。交通研究的时间趋势也通过文件共引分析进行调查。该分析确定了各种主要的交通研究流，同时确定了它们的大致出现时间和活动持续时间。它记录了过去五十年中任何时期最流行的话题。与出行行为划分相关的三个集群（共同体现土地使用、主动交通、住宅自我选择、旅行者体验/满意度、社会排斥和交通/空间公平等主题），一个道路事故统计模型集群，以及一个主要与宏观基本图概念相关的网络建模集群展示了该领域当前热门话题的特征。三个主要与电动汽车和自动驾驶/自动驾驶汽车相关的较小集群显示出成为新兴热门话题的特征。标记为共享移动性的集群是最年轻的新兴集群。识别每个参考文献群中的有影响力的文章。额外的结果是确定交通领域有影响力的局外人。