## 3 Dataset Analysis
### Analysis of Literature
#### 3.4.3 Words Analysis  
Words hold significant importance in a bibliometric analysis, as they provide insights into the practical applications of papers and the focal points of research. Within our dataset represented by keywords plus, the term'simulation' emerged as the most frequently occurring word, with 148 instances. It was closely followed by \"model\" with 129 occurrences, \"behavior\" with 94 occurrences, \"systems\" with 61 appearances, \"dynamics\" with 60 occurrences, \"impact\" with 59 appearances, \"optimization\" with 55 occurrences, \"framework\" with 45 occurrences, \"management\" with 43 appearances, and \"time\" with 43 appearances. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**No.**} & **Paper (First Author, Year,** & \multirow{2}{*}{**Title**} & \multicolumn{2}{c}{**Transportation**} & \multirow{2}{*}{**Data**} & \multirow{2}{*}{**Purpose**} \\  & **Journal, Reference)** & & & & \\ \hline \multirow{4}{*}{1} & [PERSON], 2008, & Understanding & & 100,000 persons & To better understand \\  & Nature, [61] & individual human & All & tracked for a & the human mobility \\  & & mobility patterns & & 6-month period & patterns that can be \\  & & & & 6-month period & included in various \\  & & & & & analyses, including \\  & & & & & agent-based models. \\ \hline \multirow{4}{*}{2} & Fagnant, D.J., 2014, & The travel and & & & \\  & & environment & & & \\  & Transportation Research & implications of & & & \\  & Part C: Emerging & & & & \\  & Technologies, [85] & & & & \\  & & & & & \\  & & & & & \\  & & & & & \\ \hline \multirow{4}{*}{3} & Bagstad, K.J., 2013, & & & & \\  & Ecosystem Services, [86] & & & & \\  & & & & & \\ \cline{1-1}  & & & & & \\ \cline{1-1}  & & & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Brief summary of the content of top three most globally cited documents. Notably, the top 10 most frequent words identified in Table 8 are indicative of their integral role within the transportation and ABM domains, underscoring their prevalence and relevance in the field. Table 9 provides a comprehensive overview of the ten most frequently occurring keywords authored by researchers. These keywords reflect the specific focus of their studies within the transportation domain and ABM. Notably, the top three keywords--\"agent-based model\" (214 occurrences), \"agent-based modeling\" (208 occurrences), and \"agent-based modelling\" (119 occurrences)--underscore the prominence of ABMs in the research. Additionally, the term \"simulation\" (59 occurrences) plays a significant role in these studies. Furthermore, \"electric vehicles\" (46 occurrences), \"agent-based simulation\" (41 occurrences), \"agent-based models\" (28 occurrences), \"multi-agent systems\" (18 occurrences), \"COVID-19\" (17 occurrences), and \"airplane boarding\" (15 occurrences) round out the list, each indicative of their relevance and alignment with the transportation domain and ABM. These keywords offer valuable insights into the key areas of interest and expertise within scholarly discourse. Figure 16 provides a comprehensive visualization of the top 50 most frequently used words derived from both keywords plus and authors' keywords. The visualization is segmented into two clusters: Cluster A, which emphasizes keywords plus, and Cluster B, which centers on authors' keywords. In Cluster A, focusing on keywords plus, we observe a Word Cloud wherein the most representative words include \"simulation\", \"model\", \"behavior\", \"system\", \"dynamics\", \"impact\", \"optimization\", \"framework\", and \"management\". These terms encapsulate the predominant themes and concepts associated with the research in this domain. \begin{table}
\begin{tabular}{l r} \hline \hline  & **Words** & **Occurrences** \\ \hline simulation & 148 \\ model & 129 \\ behavior & 94 \\ systems & 61 \\ dynamics & 60 \\ impact & 59 \\ optimization & 55 \\ framework & 45 \\ management & 43 \\ time & 43 \\ \hline \hline \end{tabular}
\end{table} 
Table 8: Top 10 most frequent words in keywords plus.