The level of street-network sprawl in new development in Kayin followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in Kayin, we can consider three of its most populous cities: Hpa-An, Myawaddy and Payathonzu. Out of the three cities, Myawaddy does not follow the same trend as the region. The level of street-network sprawl in new development in Myawaddy peaked in 1976-1990.

How do development practices in Kayin fare in comparison to others in Myanmar? Most recently in 2006-2020, street construction in Kayin was the 8th-most disconnected out of the 14 regions in Myanmar. Its position in the ranks since 1975 has risen; relative to other regions in Myanmar, street construction in Kayin has become more disconnected. Kayin ranked 12th in 1975, 12th in 1976-1990, 12th in 1991-2005 and 8th in 2006-2020.

As of 2020, the city with the most disconnected street network in Kayin is Kawkareik with an SNDi of 4.01, which is sprawly. Conversely, the most connected city is Payathonzu with an SNDi of 2.7, which is relatively well-connected. See trends for these cities: Payathonzu, Kawkareik

The level of street-network sprawl in the aggregate network in Kayin peaked in 1976-1990. To get a sense of how the aggregate street network has changed in Kayin, we can consider three of its most populous cities: Hpa-An, Myawaddy and Payathonzu. Out of the three cities, Hpa-An and Payathonzu do not follow the same trend as the region. The level of street-network sprawl in the aggregate network in Hpa-An rose steadily. The level of street-network sprawl in the aggregate network in Payathonzu followed a zig-zag trend with an overall increase.

To date, Kayin is the 12th-most disconnected out of the 14 regions in Myanmar. Its position in the ranks since 1975 has not changed. Kayin ranked 12th in 1975, 12th in 1976-1990, 12th in 1991-2005 and 12th in 2006-2020.