Vladivostok. July 26. VOSTOK-MEDIA. Olga Antonenko - One of the main problems of the big cities are traffic jams - they take away the nerves, time and even money. Professor at the University of Tokyo Katsuhiro Nisinari shared with Primorye motorists his proposals to combat the problem of urban congestion.There are solutions that lie on the surface: the improvement of the infrastructure of roads, construction of additional lanes on problem areas. But first, it is very expensive, and secondly, in some cities, in particular, in Vladivostok, this is not possible because of dense development.