TY JOUR TI The analysis of the existing software systems with the purpose of building a geographic information control system of JSC «Russian Railways» departments KW » KW geographic informational system KW decision support system KW management of infrastructure KW JSC «Russian Railways» monitoring system JO Transport automation research AU Nikitchin, A.. AU Bogdanov, N.. AU Rybkyn, V.. PY 2017 IS 3 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"