Multiplicative method for creating the traffic monitoring base in a megapolis Olga Makovetskaya-Abramova, Yuriy Lazarev, Marina Gravit, Svetlana Silla and Mariya Shakhova E3S Web Conf., 164 (2020) 03023 Published online: 05 May 2020 DOI: 10.1051/e3sconf/202016403023