TY JOUR TI ROAD TRANSPORT AND ACCELERATION OF RAILWAY SAFETY IMPROVEMENT KW road transport KW security KW modeling KW main roads JO Problems of risk management in the technosphere AU Kuvatov, V.I. AU Shatalova, N.V. AU Onov, V.A. PY 2013 IS 2013 PB Saint-Petersburg University of State Fire Service of Emercom of Russia