Optimization of transport routes based on environmental indicators Sergey Kuren, Galina Galchenko, Sergey Popov, Julianna Marchenko, Nikolai Dontsov and Dmitriy Drozdov E3S Web Conf., 210 (2020) 09005 Published online: 04 December 2020 DOI: 10.1051/e3sconf/202021009005