Highway Planning Trends: A Bibliometric Analysis

Abstract

An efficient highway infrastructure network is a determining factor in promoting the socio-economic development of countries and regions. Highway planning activities are highly important because their results ensure that projects are delivered within budget, schedule, and scope. Therefore, academics and professionals have promoted various methodological and technological advances focused on improving highway planning processes, evidenced by many scientific documents that address the topic. Despite progress, few studies have focused on analyzing the state of the knowledge structure and the technological and methodological trends of the highway planning topic. Considering this gap, this study presents trends in highway planning and its knowledge structure based on a bibliometric analysis from January 2015 to September 2021. The research method is based on a bibliometric analysis composed of five main stages: (1) scope definition, (2) selection of bibliometric analysis techniques, (3) data collection, (4) bibliometric analysis execution, and (5) evidence analysis and synthesis. Information from 1703 journal papers was collected and analyzed. The findings show that the main trends of highway planning focus on life cycle analysis, computational tools, smart cities, sustainability issues, construction processes, new equipment and materials, and multi-objective optimization, among others. Thus, the findings of this study allow the reader to identify the methodological and technological trends in highway planning and their knowledge gaps to guide future studies in the field.

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“…In addition, compared to other construction projects, highway projects are often recognized as high-risk projects because they are essential to a country's economy, social development, and politics. Therefore, governments worldwide prioritize significant financial investments to develop new highway projects and maintain existing highway networks (Kachhawah & Deulkar, 2022); (Castañeda, Sánchez, Herrera, & Mejía, 2022).…”

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“…It is estimated that the total length of paved roads will increase by 25 million km by 2050, which is done to meet population growth and from the transition of global population collision. The cause of regional development is to cause the addition and expansion of social and transportation facilities and infrastructure to serve the needs of its population (Castañeda, Sánchez, Herrera, & Mejía, 2022); (Strano, et al, 2017); (Rifai, Surgiarti, Isradi, & Mufhidin, 2021).…”

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“…The highway project is vital because it will be people's access to health, education, housing, trade, and so on. Therefore, governments around the world prioritize significant financial investments to develop new highway projects and maintain existing highways (Suprayoga, Witte, & Spit, 2020); (Li, Ding, & Zhong, 2019); (Castañeda, Sánchez, Herrera, & Mejía, 2022).…”