In order to meet the needs and requirements of visitors in tourist destinations related to modes of transport, the offer in tourist destinations must satisfy travel habits. The introduction of the MaaS (Mobility as a Service) concept is reflected in the reduction of dependence on private cars. The main objectives of this paper are (1) to explore the MaaS concept, awareness about the concept, its importance and benefits in general and related to tourism in the Republic of Croatia; and (2) to explore the connection between a multimodal mindset about mobility concepts on the very concept of MaaS under the influence of satisfaction using mobility-related applications in tourism. The results of the research confirm a statistically significant relationship between a multimodal mindset (way of thinking) and the MaaS service in the function of tourism, and that relationship is mediated by the satisfaction with the use of mobility-related applications, but also the lack of awareness about the concept itself.

Urban transport system planning has been moving towards sustainability in recent years, and the concept of urban freight logistics is an integral part of this planning. Urban freight logistics involves many stakeholders that participate in its operation and should be considered in the system planning process. The paper presents one of the approaches to the methodology for the selection of key indicators suitable for the evaluation and monitoring of a sustainable system of urban freight logistics in such a way that it reflects as much as possible the needs of all involved stakeholders. This is done by applying the selected method of multi-criteria analysis with the involvement of various urban freight logistics stakeholders. Based on the proposed methodology, the paper defines significant indicators that can be considered for further evaluation of the level of a sustainable urban freight logistics system. In addition to the possibilities of further development of this methodology, the application of determined significant indicators for calculating the proposed index of sustainable urban freight logistics is discussed. The proposed procedure can be implemented in the preparatory steps in the framework of the creation of sustainable urban logistics plans (SULPs).

Multiplier effects play a major role in determining importance of a sector of interest to the national economy. In order to determine the significance of Croatian transport sectors, in this paper input-output analysis was applied. A comparative analysis of type I and type II output, gross value added and employment multipliers based on input-output tables for Croatian economy for the year 2010 and 2015 was performed. Type I multipliers were calculated based on the open IO model. Closed IO model was used in type II multipliers determination. Results indicate that sector code H49—Land transport services and transport services via pipelines and sector code H50—Water transport services in the year 2015 recorded lower type I and type II output, gross value added and employment multipliers compared to the year 2010. For sector code H51—Air transport services, significant growth in terms of all three economic indicators was detected, especially when interest is focused on type I and type II employment multipliers. Results presented in this paper could be valuable for academia and general public because they reflect multipliers estimation of transport sectors in Republic of Croatia for the first time based on sound macroeconomic analysis tool.

Discussions about the future of energy sources and environmental sustainability are becoming critical on a global scale. The energy sector plays a central role in the economy, as the availability and cost of energy influence the competitiveness of economies, while the level of energy consumption impacts the standard of living for individuals. This paper aims to examine environmental challenges and steps for a sustainable transition towards a hydrogen economy, focusing on its potential as an alternative to fossil fuels and the importance of developing the hydrogen paradigm. The research methodology is based on a combination of qualitative and quantitative methods, including an analysis of global and regional trends in the energy transition, the impact of various forms of hydrogen production (green, blue, gray hydrogen) on greenhouse gas emissions, and a comparison of existing policies and strategies in different countries transitioning to a sustainable hydrogen economy. Research results show that green hydrogen, produced via electrolysis using renewable energy sources, holds the greatest potential for reducing greenhouse gas emissions, while gray and blue hydrogen can serve as transitional options. The development of the hydrogen paradigm, rooted in innovative technologies, renewable energy sources, and international cooperation, is crucial for decarbonization and the creation of a sustainable global economy, despite challenges such as high costs and the need for global coordination. The hydrogen paradigm is becoming a cornerstone of these efforts, laying the foundation for a long-term, sustainable global economy. Currently, over 180 hydrogen transport projects, 60 distribution projects, 80 storage projects, 30 terminal and port projects, and more than 220 hydrogen production projects are under development worldwide. The global momentum of the hydrogen transition helps mitigate climate change and build a sustainable future.

Intelligent transport systems include the application of various technologies whose use seeks to increase the efficiency and safety of the transport system. They represent an upgrade of the classic transport system with new technologies in order to increase transport efficiency, increase the safety of all road users, reduce the harmful effects of transport on the environment and quality of life, and are based on efficient real-time information exchange. Fleet management is an important part of intelligent transport systems. Its primary purpose was to optimize the work and control of the vehicle fleet in transport companies. The subject of this paper is the application of Fleet Management system as part of ITS, and the use of tachographs as a mandatory system for monitoring vehicle and driver activities, and show the capabilities of Fleet Management systems and tachograph systems and compare the accuracy of recorded data.