The main goal of this paper is the upgrading of classic economic analyses of optimal concept selection of small hydro development. Techno

City transport causes the biggest part of road transport emissions. Besides, by engaging mainly fossil fuels in the city transport, we are responsible for air pollution in urban areas. On the other hand, passengers transport (private and public, individual and mass) may contribute substantially to reduce the negative impact on the environment by application of alternative fuels and declining of the use of fossil fuels. The main alternative fuels for drive systems in transport are the following: electricity, hydrogen, and biofuels. Synthetic fuels are option as a technology. Some of them are very effective but too expensive technologies. Another way is introduction of flexible transport (from door to door, on demand, etc.) which application enables to decrease the number of cars in urban centers to avoid congestions and the negative impact on the environment. This paper points out that public transport has a special role in the process of decreasing fossil fuel dependence, and the necessity for rapid alternative technology implementation, as well as development of the public transport system itself. Proposed is the introduction of public passenger transport from door to door that offers a comfort comparable to personal cars (specifically for handicapped persons) and helps to lowering congestions on the roads.

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