The level of street-network sprawl in new development in Puttalam was at its lowest in 1976-1990. To get a sense of how street development has changed in Puttalam, we can consider two of its most populous cities: Wennappuwa and Puttalam. Out of the two cities, Puttalam does not follow the same trend as the region. The level of street-network sprawl in new development in Puttalam peaked in 1991-2005.

As of 2020, the city with the most disconnected street network in Puttalam is Wennappuwa with an SNDi of 4.85, which is sprawly. Conversely, the most connected city is Puttalam with an SNDi of 2.83, which is relatively well-connected. See trends for these cities: Puttalam, Wennappuwa

The level of street-network sprawl in the aggregate network in Puttalam was at its lowest in 1976-1990. To get a sense of how the aggregate street network has changed in Puttalam, we can consider two of its most populous cities: Wennappuwa and Puttalam. Out of the two cities, Puttalam does not follow the same trend as the region. The level of street-network sprawl in the aggregate network in Puttalam rose steadily.