# Decentralized Public Transport Management System Based on Blockchain Technology +
## 3 System Design and Implementation  
This section elaborates, in detail, on a model that allows for monitoring vehicle conditions and maintaining them in working condition.  
Understanding how various processes in the studied areas will be improved through blockchain technology or smart contracts is essential.  
We first highlight the main categories in the integration of blockchain technology and supply chain management, as follows: (1) accounting and administration, (2) trust, (3) data platform, (4) compatibility, and (5) interference elimination [38]. Working on these categories together may lead to comprehensive improvements in supply chain management.  
The study shows that the coexistence of these technologies strengthens component connections, decision rationalization, automation, and process integration. Considering the human factor in using new technologies in the supply chain is also necessary. A study on how managers make decisions about the use of blockchains in supply chains allows us to conclude that the problem of transparently calculating implementation efficiency results remains unresolved [39].  
Evidently, blockchains in supply chains reduce costs and increase the level of security, but at the same time, there is still a risk of cyber-attacks that is difficult to calculate and cannot be predictably managed [40]. Despite all the difficulties, the use of blockchains not only makes supply chains more efficient, but also increases their overall stability [41].  
Conclusions regarding positive expectations from blockchain technology can be drawn based on its introduction by Brazilian companies into the supply chain [42]. One can focus on pallet management by switching to the unit level in the company hierarchy. Using a blockchain to control operations in pallet logistics affects the sustainable development of the logistics industry [43]. Finally, while it is impossible to fully implement new technology into existing supply chains, it is permissible to turn to the Lean approach. Even with this approach, blockchains can increase the efficiency, reliability, and transparency of supply chains [44].  
\begin{table}
\begin{tabular}{c c c c} \hline \hline
**Application Domain** & **Key Features** & **Implementation Challenges** & **References** \\ \hline \multirow{3}{*}{Intelligent Transport Systems} & Security and data integrity & Scalability & ([PERSON] et al., 2022) [11] \\  & Real-time data exchange & Network latency & ([PERSON] et al., 2021) [12] \\  & Decentralized trust & & \\ \hline \multirow{3}{*}{Safety Management} & Transparent monitoring & Integration costs & ([PERSON] et al., 2022) [25] \\  & Secure data sharing & System complexity & ([PERSON] et al., 2021) [28] \\  & Fraud prevention & & \\ \hline \multirow{3}{*}{Supply Chain and Logistics} & Asset tracking & Implementation barriers & ([PERSON] et al., 2021) [19] \\  & Smart contracts & Technology adoption & ([PERSON] et al., 2021) [20] \\ \cline{1-1}  & Process automation & & \\ \hline \hline \end{tabular}
\end{table}
Table 1: Summary of blockchain applications in transportation systems.