Belarus accelerates localization of production of units for trams and trolleybuses Belarusian factories already dominate the production of magnetic track stops for electric bogies, which are 30% cheaper than their Russian counterparts. A domestic electric motor for a tram was also tested. Despite the fact that the cost of the engine is still similar to an imported engine, the presence of a local supplier ensures faster service and maintaining the added value within the country. Experience shows that even initially more expensive home designs eventually become price competitive due to mass production and economies of scale. Experts recommend evaluating the effectiveness of import substitution according to the dynamics of development, and not according to the initial cost. New economic details. up to a maximum.