The distance from a habitation is one of the fundamental characteristics of the plot spatial layout, determining its location within a farm. The necessity to establish the above mentioned distance is required mainly in case of taking decisions concerning land transformations including land mergers. Estimation of distance between the allotment and the habitation is a time-consuming activity, nevertheless it may be considerably improved or even automated by means of presenting a numerical map. The article is dedicated to issues related to the separation of road network in a rural area and its presentation in a form of a graph showing options in terms of passage or access from habitations to cultivated land. The road network graph is one of the output data required in case of automated determining of distance between land and habitations.

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