TY JOUR TI OPEN SOURCE TOOLS FOR GEOGRAPHICAL ANALYSIS IN TRANSPORT PLANNING KW centroid KW connector KW random access time KW probability density function of intrazonal travel time KW model JO Scientific Papers Collection of the Angarsk State Technical University AU Lebedeva, O.A. PY 2025 IS 2025 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»