## 3 Results
### Descriptive Analysis: Publication Development
#### 3.1.2 Leading Journals, Authoritative Conferences, and Top Specialists  
A total of 168 sources contributed to the publication of whole papers in the studied field. It was listed among the top 10 journals and conferences, as shown in Figure 3. These relevant sources have a total of 377 papers, including 217 journal articles and 60 conference papers, which is about 56.19% of the publications in our sample. Figure 4 also shows the top 10 journals and conferences, such as _Computer-Aided Civil and Infrastructure Engineering, Transportation Research Procedia, IEEE Transactions on Intelligent Transportation Systems, The Journal of Advanced Transportation, The China Journal of Highway and Transport, The Transportation Research Record_, The COTA International Conference of Transporta \begin{table}
\begin{tabular}{l l l l l} \hline \hline
**Main Information about Data** & **Document Contents** & & **Document Types** & \\ \hline Timespan & 2008:2022 & Keywords Plus (ID) & 1477 & Article & 73 \\ Sources & 79 & Author’s Keywords (DE) & 952 & Book chapter & 48 \\ Documents & 287 & Authors & 804 & Conference paper & 147 \\ Annual growth rate \% & 23.41 & Authors of single-authored docs & 37 & Review & 13 \\ Doc average age & 2.62 & Single-authored docs & 44 & & \\ Average citations per doc & 8.564 & Co-authors per doc & 3.33 & & \\ References & 8097 & International co-authorships \% & 12.5 & & \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Main information of Scopus’s publications. \begin{table}
\begin{tabular}{l l l l l} \hline \hline
**Main Information about Data** & **Document Contents** & & **Document Types** & \\ \hline Timespan & 2011:2022 & Keywords Plus (ID) & 226 & Article & 80 \\ Sources & 89 & Author’s Keywords (DE) & 585 & Early access & 10 \\ Documents & 206 & Authors & 662 & Conference & 113 \\ Annual growth rate \% & 29.03 & Authors of single-authored docs & 14 & Review & 3 \\ Doc average age & 2.65 & Single-authored docs & 14 & & \\ Average citations per doc & 7.024 & Co-authors per doc & 3.67 & & \\ References & 5502 & International co-authorships \% & 23.3 & & \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Main information of Web of Science’s publications. tion Professionals, etc., directly focusing on the transportation field of study. The other sources are focused on sustainable cities, the built environment, and engineering infrastructure. We also list the top 15 most locally cited sources from all the reference lists. It was found that 18 journals or proceedings, as listed in Table 4, had been cited at least 50 times as of July 2022. _Energy and Buildings_ (Q1, CiteScore 11.5, impact factor 7.201), _Advanced Engineering Informatics_ (Q1, CiteScore 10.1, impact factor 7.862), and _Computer-Aided Civil and Infrastructure Engineering_ (Q1, CiteScore 17.2, impact factor 10.066) are the most popular journals for scholars related to BIM and DTs technologies. These journals especially focus on recent improvements in computer and information technologies. They also encourage the development and use of emerging computing paradigms and technologies, with a focus on knowledge and engineering applications. Table 5 shows the local impact of authorship. Within the top three, we find that the author [PERSON] from Italy has published seven scientific works related to BIM in road design [26] and modeling [27], railway design [28], and the expansion of