Gampola in context: Street-network sprawl trends

Gampola in context

456789<19751976–19901991–20052006–2020SNDi of street additions
456789<19751976–19901991–20052006–2020SNDi of entire street network
GampolaKandy (Region)Sri Lanka (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Gampola plotted against Kandy and Sri Lanka. The SNDi of new construction in Gampola followed a zig-zag trend with an overall increase, compared to Kandy which rose steadily and Sri Lanka which rose steadily. Most recently, Gampola's incremental SNDi rose from 5.9 to 8.77 between 1991-2005 and 2006-2020. In terms of the aggregate network, Gampola ranked 2nd out of 2 cities in Kandy and 20th out of 21 in Sri Lanka as of 2020.

New Street Additions (2006–2020)

SNDi value
8.77
Rank in Sri Lanka
20th of 21
Rank in Kandy
2nd of 2

Entire Network (Aggregate)

SNDi value
7.2
Rank in Sri Lanka
20th of 21
Rank in Kandy
2nd of 2

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
GampolaGreat YarmouthGyobingauk

In new street additions, Gampola and Gyobingauk both fluctuated in its street-construction patterns, while Great Yarmouth built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Gampola and Great Yarmouth have been growing further apart in their street-network character since 1975.