Tuen Mun in context: Street-network sprawl trends

Tuen Mun in context

2.12.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
Tuen MunYuen Long (Region)Hong Kong (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tuen Mun plotted against Yuen Long and Hong Kong. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Tuen Mun's incremental SNDi rose from 3.95 to 4.48 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tuen Mun ranked 1st out of 1 cities in Yuen Long and 5th out of 6 in Hong Kong as of 2020.

New Street Additions (2006–2020)

SNDi value
4.48
Rank in Hong Kong
4th of 6
Rank in Yuen Long
1st of 1

Entire Network (Aggregate)

SNDi value
3.27
Rank in Hong Kong
5th of 6
Rank in Yuen Long
1st of 1

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
Tuen MunSolapurRostov-on-Don

Tuen Mun, Solapur, and Rostov-on-Don all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Tuen Mun and Solapur have been growing further apart in their street-network character since 1975.