# Decentralized Public Transport Management System Based on Blockchain Technology +
## 1 Introduction
The introduction of the GDEPZ method for optimizing data transmission via satellite communication, specifically designed for vehicles operating in remote areas with limited connectivity. These innovations collectively address the challenges of modern transportation system management, providing a foundation for autonomous vehicle maintenance decision making and efficient fleet management. While blockchain technology offers significant advantages for transportation systems, we acknowledge its common implementation challenges, such as latency, scalability, and energy consumption. Our approach addresses these challenges through the following three key design decisions: (1) utilizing a private blockchain architecture that significantly reduces computational overhead and energy costs compared to public networks, (2) implementing the GDEFZ method for data optimization that minimizes transmission latency, and (3) designing a scalable token-based system that can efficiently handle up to 1500 vehicles with a 25 TPS network capacity. These design choices enable practical implementation while maintaining the benefits of blockchain technology. To address the above research problems, this article proposes a model for organizing a maintenance and repair system for public transport vehicles based on Distributed Ledger Technology (DLT). The proposed system utilizes a token whose maximum value corresponds to the exploitation resource of a vehicle, i.e., 100%. This can further decrease or increase during certain operational or maintenance events. These correspond to the transactions of the actual transport vehicle's lifetime stages. The system is designed as a private blockchain, which could be integrated within an organization or into one geographical area, e.g., a city. Moreover, the proposed system can store the complete, immutable history of the maintenance and operation of the vehicle in DLT. This article offers a foundation for the future of unmanned transport. In an unmanned system, the importance of smart contracts increases many times, since there is no decision-making driver. This model allows one to manage the technical conditions of vehicles by taking into account only objective factors with which the vehicle operates--routes, stops, weather conditions, and passenger traffic. The model needs to take into account the current requirements of local legislation, which mandate daily inspections before going on the line. In addition to unmanned vehicle applications, there are problems with obtaining up-to-date data on technical conditions, for example, in hard-to-reach regions. In particular, for this purpose, the article suggests using satellite communications to improve the quality and stability of the system. The rest of the paper is organized as follows. Section 2 provides an overview of the blockchain application in the transportation segment. In Section 3, a model of the system operation and the data transmission mechanism are proposed. Section 4 presents the technical components of the model, and Section 5 elaborates on the direction of future research.