What would be of more importance to them is better transport infrastructure between European Russia and the Russian Far East. Across much of thet route, roads are simply non-existant even today. If you drive from Moscow to Vladivostok then you're not taking a journey, you're mounting an expedition
Why would they want this infrastructure? Well large numbers of Chinese are moving north to settle in Russia. There's speculation that Chinese will be a majority in the Russian Far East few decades. See:
Better commincations across Russia will help them counter this and help tie the country together.