Trincomalee in context: Street-network sprawl trends

Trincomalee in context

34567<19751976–19901991–20052006–2020SNDi of street additions
34567<19751976–19901991–20052006–2020SNDi of entire street network
TrincomaleeSri Lanka (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Trincomalee plotted against Sri Lanka. The SNDi of new construction in Trincomalee followed a zig-zag trend with an overall increase, while Sri Lanka rose steadily. Most recently, Trincomalee's incremental SNDi rose from 4.34 to 6.17 between 1991-2005 and 2006-2020. In terms of the aggregate network, Trincomalee ranked 10th out of 21 in Sri Lanka as of 2020.

New Street Additions (2006–2020)

SNDi value
6.17
Rank in Sri Lanka
8th of 21

Entire Network (Aggregate)

SNDi value
4.14
Rank in Sri Lanka
10th of 21

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
TrincomaleeJingangAtebubu

In new street additions, Trincomalee fluctuated in its street-construction patterns, while Jingang built increasingly disconnected streets from 1975 through 1976-1990, then improved and Atebubu built increasingly disconnected streets over time. For the full network, Trincomalee and Atebubu both became progressively more disconnected, while Jingang grew more disconnected from 1975 through 1976-1990, then improved. Trincomalee and Jingang have been growing further apart in their street-network character since 1975.