Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 17

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last
Wyniki wyszukiwania
Wyszukiwano:
w słowach kluczowych:  transport geography
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
PL
O liniach kolei dużych prędkości (KDP) w Polsce mówi się od początku lat 90. ubiegłego wieku. Na świecie KDP funkcjonuje znacznie dłużej, bo już w latach 60. XX w. w Japonii zaczęto eksploatować pierwsze pociągi, które mogły poruszać się osiągając prędkość powyżej 200 km/h. W poniższej pracy za cel główny przyjęto określenie zmian dostępności w indywidualnym transporcie samochodowym na skutek budowy KDP w województwie łódzkim. Na potrzeby oszacowania zmian dostępności potencjałowej gmin przed i po oddaniu do użytku nowych lub zmodernizowanych odcinków linii kolejowych niezbędne było wygenerowanie punktów centralnych gmin w  województwie i  przypisanie im liczby mieszkańców. Otrzymane wyniki dowodzą, że każdy z siedmiu wariantów przebiegu tras przyczyni się do spadku dostępności potencjałowej w województwie łódzkim.
EN
There have been talk of high-speed rail (HSR) lines in Poland since the beginning of the 1990s. High-speed railways have been in operation in the world for much longer, because already in the 1960s in Japan the first trains that could move at speeds above 200 km / h began to be operated. In the study below, the main goal was to determine the changes in accessibility in individual car transport as a result of the construction of high-speed rail in the Łódź Province. In order to estimate changes in the potential accessibility of settlement units before and after the commissioning of new or modernized sections of railway lines, it was necessary to generate focal points of communes in the voivodship and assign them the number of inhabitants. The obtained results prove that each of the seven variants will contribute to a decrease in potential accessibility in the Łódź Province.
EN
This article contains results of studies on the applicability of data from Intelligent Transportation Systems (ITS) for the purposes of geographical studies regarding the spatial mobility of inhabitants within a big city. The article focuses on the option of applying two types of sub-systems – induction loops and automatic number-plate recognition (ANPR) – and includes examples of analyses based on the resulting data, which can serve as a basis for mobility studies. The area on the example of which the capabilities of application of ITS data have been presented is Lodz – a large city in central Poland. The conducted research shows that ITS systems offer an enormous potential in providing data for spatial mobility studies. In order to fully exploit its worth, however, it is imperative to expand the research procedure by including, for instance, the results of qualitative research. Also, the interpretation of results obtained on the basis of ITS data ought to be performed with an awareness of numerous significant preliminary and simplifying assumptions.
EN
The purpose of this article is to present the authors' own software for predicting changes in the density and directions of traffic flows and to compare overall results of research on transport accessibility with the results returned in the study of transport accessibility conducted with the software (isochronic accessibility). Developed for research purposes, the authors' application is based on Dijkstra's algorithm, which is classified as one of the greedy ones and does not always return optimum results, even though it is considered to be generally accurate. In the course of the research, it was stated that the implementation of Dijkstra's algorithm in the RoadLoad tool is suitable for studying and prognosing phenomena, under the assumption that there are detailed data on the point of departure and destination for each trip. The tool enables us to research a spatial (cumulated values of network load) as well as time-spatial (network load at virtually any time) dimension of the phenomenon. It cannot be applied, however, without the knowledge of the transport behavior characteristics of the users of the road system.
EN
The article deals with the geographic and transport position that Leningrad – St. Petersburg takes in the passenger transportation system, which differs to a great extent from its position in the system of freight transportation and undergoes considerable changes with time. The time period under analysis is from the 1950s to the 1960s and to the present moment. The transformation of Leningrad – St. Petersburg position in the system of airline passenger transportation is studied by means of 1) the coefficient of transportation connectivity method (the CTC method) developed by the author of the article and 2) passenger transportation zoning covering those territories which are connected with the city by airline and railway transportation facilities. The greatest attention is paid to the transportation zoning of the former Soviet Union, and this let us to rely on the obtained data in studying other cities’ airline connections through the coefficient of transportation connectivity method. The undertaken comparing of passenger airline destinations through decades shows which transportation destinations ensured the maximum growth in passenger transportation in Leningrad – St. Petersburg in the late 1980s and which ones provided for the sharp decline or decrease in the 1990s. It can also be noted that Pulkovo airport passenger transportation is currently increasing mostly due to the western destinations than the eastern ones.
PL
Niniejszy artykuł ma na celu usystematyzowanie wiedzy w zakresie przestrzennego i ilościowego zróżnicowania czynnych parowozów w Polsce, jako przykładów zagospodarowania zabytków techniki w formie „żywego eksponatu”. Stanowią one najwyższą formę organizacyjną zabytków techniki kolejowej. Turystyka kolejowa oparta na eksploatacji lokomotyw parowych jako „żywych eksponatów” wpisuje się w ogólny trend rozwoju turystyki kulturowej. Postępująca modernizacja trakcji dotykała Europy zachodniej od lat 50. XX wieku. Zostały jednak zabezpieczone przed pocięciem na złom i reaktywowane przez społeczności miłośników kolei, począwszy od lat 50. XX wieku. Od tamtej pory na świecie pojawiało się coraz więcej inicjatyw mających na celu ochronę zabytków kolejnictwa. Można przyjąć, że ze względu na różnorodność warunków, które muszą być spełnione, liczba czynnych parowozów w danym kraju pozwala ocenić stan jego kultury technicznej. Niestety poziom poszanowania dla zabytków techniki wciąż odbiega w Polsce od europejskiej normy, czego najlepszym wyznacznikiem jest wyjątkowo niska liczba czynnych parowozów, co w kraju o najbarwniejszych dziejach kolejnictwa spośród krajów Europy środkowej wydaje się co najmniej niezrozumiałe.
EN
The main issue of this article is to systematise current knowledge about the spatial and specific differentation of location steam engines in Poland. They are uniqe examples of historical vehicles run as tourist attraction. These engines are often called “living machines” and represent the highest organizational form of preserving technical heritage. Rail tourism based on the use of steam locomotives as “live exhibits” is part of the general trend in contemporary cultural tourism development. The ongoing modernization of traction has affected Western Europe since the 1950s. However, some of these old vehicles were protected from scrapping and reactivated by railroad enthusiasts, firstly in Great Britain and then all over the Europe. Due to the number of active steam engines in a given country allows for assessing the state of its technical culture. To maintain working steam locomotive needs a lot of conditions including capital, “know-how” and crews with rare skills. Unfortunately, the level of maintaining technical monuments still differs in Poland from the European norm. The main barrier in the heritage railway are chronic lack of funds from local and national authorities. This may be the main cause of the exceptionally low number of active steam engines in Poland. That case seems to be at least incomprehensible, especially in Poland, which have one of the most colorful railway history from central european countries.
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.