As the available reports and studies indicate, the market for two or three wheeled motor vehicles (Power Two- and Three-Wheelers) in Poland in the first decade of the 21st century recorded high growth. This was the result of both increasing the purchasing power and the changes in legal conditions. An important factor influencing the popularity of two-wheelers are also changes in communication preferences of Poles, caused by the increase of mobility needs and growing communication problems in cities. The changes in the number of PTW vehicles and their structure are clearly differentiated spatially compared to the country. This is mainly due to socio-economic and cultural conditions. The market for PTW vehicles is different in urban areas, where motorcycles dominate with a relatively low number of vehicles per number of inhabitants. In rural areas, saturation with PTW vehicles is higher than in cities, with the majority of mopeds and motorcycles of smaller capacity. The aim of the article is to present the changes of the PTW market in the years 2000-2017 in districts. The research was based on the data from the central register of vehicles and drivers (CEPIK), the Central Statistical Office and the Polish Automotive Industry Association.

The article discusses the problem of appraisal of the location of electric car charging stations. The article is focused on identifying potential criteria for assessing the network of charging points. It was assumed that the determination of the value of these criteria should be possible by using publicly available data sources in Poland, e.g. those that were made available by the Central Statistical Office of Poland, Head Office of Geodesy and Cartography or as part of Urban Atlas or OpenStreetMap projects. Finally, a set of evaluation criteria was proposed, which were classified to six categories and covered the aspects of: cost, the share of high power charging stations, spatial accessibility as well as the integration of electric car charger network with the public transport system. The set was used to assess the network of charging stations in Poznan for the present state and three forecasting variants developed by the authors, which meet the requirements of the Act on electromobility and alternative fuels.

The aim of the article is to present current transformations of the city transport that serve to improve the quality of their residents’ lives. They result from various determinants that form the background for these transformations. A substantial number of these conditions is destructive, in particular: an increase in the number of passenger cars in the world, significant pollution from passenger car traffic and no decrease in this emission despite a growing number of low-emission cars and problems with congestion. However, some of these determinants are constructive, particularly: noting by the authorities that the quality of life in the city is essential, changes in thinking about transport in the city – especially two ground-breaking publications – Jane Jacobs’s book The Death and Life of Great American Cities and Buchanan’s report, as well as a decrease in the number of passenger cars in large cities of developed countries. In this context, urban transport transformations aiming to improve the quality of life are presented in terms of: street planning, traffic flow, slowing down and reducing car traffic, bicycle transportation, Personal Mobility Devices transportation, as well as the rank, integration, accessibility and attractiveness of public transport.

The article shows some problems with interpretation of Warsaw Barometer opinion pools results about frequency of use of different means of transport on example of seasonal differences. This issue is important as assessment of passenger traffic is done usually much less frequently than Warsaw Barometer research. In the same time Warsaw Barometer research, may allow for passenger traffic assessment, but with use of data acquired with different method and is done since 2004 regularly at least 2 times a year. The Warsaw Barometer asks city inhabitants from the very beginning about frequency of use of different modes of transport during 3 months from the answer. More frequent assessment of changes in use of different means of transport by city inhabitants would allow for faster reactions in transport policy to changes in travel behaviour.

Political and economic changes in Central and Eastern Europe have had dramatic influence on air transportation market and its growth. In new European Union member countries liberalization of the market was the crucial factor, but in the eastern part of Germany, previously German Democratic Republic, the process of reunification of the country was the most important and hence, major changes and growths were of an earlier date. The implementation of the Third Liberalization Package in Western Europe, which occurred afterwards, was not so visible. The expansion of low cost carriers brought changes at almost all regional airports. Nowadays LCCs have a dominant position or even monopoly in smaller airports. Regional airports boomed especially in Poland and Romania, the most successful ones being Kraków, Gdańsk, Katowice, Wrocław, Cluj-Napoca, Timişoara and Iaşi. In the case of smaller countries the number of passengers increased significantly in Kaunas, Palanga and Debrecen. Not all airports have developed according to the forecasts. Substantial investments in infrastructure of some airports can be perceived as misguided.

The research carried out by the author on the topic of transport exclusion in the poviats of the Low Beskids and the Bieszczady Mountains highlighted the problem of the lack of complete and reliable sources enabling not only to track changes in suburban bus transport network, but even to recognize its current offer. It was observed in the time of research, that the situation over the last nearly 30 years has dramatically deteriorated due to the significant dispersion of the information on bus timetables. Therefore, gathering the expected research material was much more time-consuming than the author assumed. This prompted him to discuss in one place the barriers that researchers could meet in researching of the public transport networks. He devotes a lot of space for the discussing from the researcher’s perspective the effects of the division of competences in the approval of timetables between individual transport organizers. Other threats to the researchers involved in researching this topic are also indicated. The article is summed up with the recommendations aimed to improve not only scientific research, but also to facilitate the daily lives of the passengers of the suburban public transport.