In Russia, the urban population continues to grow rapidly. Residents of villages, towns and small cities migrate to large cities or their agglomerations of over 700,000 people. The urban population increase boosts the development of the economy, but the population outflow from rural areas makes it unstable against the risks of global economic crises. Despite of the key role of cities in the country's economy (the largest agglomerations account for up to 60% of GDP), their development is subject to the regional development goals. The largest cities and their agglomerations do not form an independent spatial framework with well-developed connections between the settlements of different regions.