The level of street-network sprawl in new development in Heilongjiang peaked in 1976-1990. To get a sense of how street development has changed in Heilongjiang, we can consider three of its most populous cities: Harbin, Qiqihar and Mudanjiang. Out of the three cities, Qiqihar does not follow the same trend as the region. The level of street-network sprawl in new development in Qiqihar peaked in 1991-2005.

As of 2020, the city with the most disconnected street network in Heilongjiang is Heihe with an SNDi of 5.35, which is very sprawly. Conversely, the most connected city is Tonghe with an SNDi of 0.98, which is very well-connected. See trends for these cities: Tonghe, Heihe

The level of street-network sprawl in the aggregate network in Heilongjiang rose steadily. To get a sense of how the aggregate street network has changed in Heilongjiang, we can consider three of its most populous cities: Harbin, Qiqihar and Mudanjiang. Disconnectivity in the most populous cities in Heilongjiang follow the same region trend.