Piotr Rosik

The impact of selected planned motorways and expressways on the potential accessibility of the Polish-Slovak borderland with respect to tourism development

Abstract Further tourism development in the Polish-Slovak borderland, as well as its overall economic development, depends on the construction of a motorway and expressway network. This paper analyses the impact of selected planned motorways and expressways (D1, A4, D3/S69, R1/R3/S7, and R4/S19) on the potential accessibility of the Polish-Slovak borderland with respect to the development of tourism. The most important investment project in Slovakia is the completion of the (started) D1 motorway. The R4/S19 and the R1/R3/S7 expressways and the D3 motorway/S69 expressway are expected to contribute to improved cross-border connections.

The Impact of Data Aggregation on Potential Accessibility Values

The paper focuses on an investigation of the Modified Areal Unit Problem (MAUP) in a potential accessibility case study of the Mazovia region. Three different potential accessibility models were prepared based on the same theoretical background and coherent spatial data: a municipal model, a grid model and a population-weighted average travel time model. We concentrated on two main issues: the differences in the results produced by the three different models, and the impact of different methods of calculation of self-potential on these differences. The results show significant differences in accessibility values produced by the three models tested. The municipal model produced underestimated values of potential accessibility indicator in all spatial units. The differences are first of all a consequence of taking into consideration the densely populated peripheral districts of Warsaw that are ‘visible’ in grid-based models, but ‘not visible’ (i.e. averaged) in the central-location oriented municipal model. As a consequence, the total travel time between the average (population-weighted) origin-destination grid nodes is shorter than that calculated at the municipal level and the potential accessibility values are higher in both grid-based models. However, in general, the main cause of the differences of accessibility values observed is not the self-potential but rather the complexity of transportation and land use relations between neighbouring municipalities.

Traffic Modeling in Poland at the Municipal Level. Multi-purpose Model

The main objective of this paper is to develop passenger traffic modeling for the entire territory of Poland at a detailed spatial scale. Analysis embraces a large number of transport regions at the municipal level and a network of national and regional (provincial, voivodeship) roads. For this purpose statistical data has been applied indicating local conditions related to spatial and socio-economic structure as well as functional relations. The cognitive goal of the study is to identify factors affecting the distribution and intensity of passenger vehicle traffic. Such identification allows for separation of those sections of the network, for which local socio-economic conditions and specific functional connections determine a different modeled traffic intensity from the actual traffic based upon the General Traffic Census measure. Modeled results have been compared with the authentic distribution of traffic on the network of national and regional roads in Poland in 2010. Combination of the following six travel purposes has been taken into account: commuting to work (COM), shopping trips (CH), commuting to university (EDU), business trips (BIZ), visiting friends and relatives (VFR) and tourist trips (TUR). Grouping the six travel purposes in a single multi-purpose model has proved to be successful and led to improved fitting with the General Traffic Census results.

Modelowanie dostępności i mobilności w kontekście zróżnicowań regionalnych liczby ludności, PKB i spółek prawa handlowego

The article is an original synthesis of accessibility and mobility modelling that is carried-out in the Institute of Geography and Spatial Organization, Polish Academy of Sciences (IGSO PAS). The paper takes into account the spatial context of industry development in Poland, with particular emphasis on the spatial dis- tribution of population, GDP and location of commercial companies. The potential accessibility in HGV trans- port, where attractiveness depends on both population and GDP is taken into consideration. For the empirical analysis the OGAM application was used. In the part of the paper devoted to mobility issues, a model uses the results of the distribution of traffic on the national and voivodeship road network and VISUM software. The original method compares the results of the gravity model for travel between commercial companies carried out by entrepreneurs (businessmen, sales representatives, etc.) with the real traffic distribution. The overestimation/underestimation of traffic with respect to the results of the General Traffic Survey in 2010 was shown. Both in the accessibility and mobility studies a matrix of travel time at the municipal level (2,321 units) was used. Speeds were calculated based on the IGSO PAS speed model. It was pointed out that the potential and gravity models are still not very popular methods of analysis of determinants of industrial de- velopment in Poland. They provide the opportunities for indicating potential locations for new investments in the context of both freight transport and business travel

Model uwarunkowań dostępności (NeST box) – integracja metod badawczych, atrybutów, komponentów i wymiarów dostępności

Model uwarunkowan dostepności (NeST box) – integracja metod badawczych, atrybutow, komponentow i wymiarow dostepności