The Impact of Data Aggregation on Potential Accessibility Values - Geoinformatics for Intelligent Transportation - page 226

Fig. 1 Potential accessibility values (Ai) in the Mazovia region. a Municipal model (M1), b grid
model (M2), c population-weighted average travel time model (M3)

signi cant factors. Furthermore, the regional disparities in the Mazovia region are

mostly in

uenced by the existence of two connected poles of relatively higher
accessibility visible at the national level (cf. [ 23 ]) which are located in the central part
of Poland, includingWarsaw and

fl

metropolitan areas, and the southern part of the
country containing Cracow and the Upper Silesia conurbation. The intraregional
accessibility disparities are even strengthened by the location of the majority of the
high quality infrastructure in the most accessible part of the region linking Warsaw
with

Łó d ź

and the central part of Poland. As a result, better road accessibility is
observed in the south-western part of theMazovia region, while peripheral areas in the
eastern and northern part of the region are clearly less accessible. Nevertheless, there
are some exceptions to the above rule resulting from the location of a short section of

Łó d ź