Simpang Ampat in context: Street-network sprawl trends

Simpang Ampat in context

3.244.85.6<19751976–19901991–20052006–2020SNDi of street additions
3.244.85.6<19751976–19901991–20052006–2020SNDi of entire street network
Simpang AmpatPulau Pinang (Region)Malaysia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Simpang Ampat plotted against Pulau Pinang and Malaysia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Simpang Ampat's incremental SNDi rose from 3.95 to 4.5 between 1991-2005 and 2006-2020. In terms of the aggregate network, Simpang Ampat ranked 2nd out of 3 cities in Pulau Pinang and 18th out of 43 in Malaysia as of 2020.

New Street Additions (2006–2020)

SNDi value
4.5
Rank in Malaysia
15th of 43
Rank in Pulau Pinang
1st of 3

Entire Network (Aggregate)

SNDi value
4.04
Rank in Malaysia
18th of 43
Rank in Pulau Pinang
2nd of 3

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
Simpang AmpatElizabeth NorthAgnibilekrou

In new street additions, Simpang Ampat built increasingly disconnected streets over time, while Elizabeth North built increasingly disconnected streets from 1975 through 1991-2005, then improved and Agnibilékrou fluctuated in its street-construction patterns. For the full network, Simpang Ampat and Agnibilékrou both became progressively more disconnected, while Elizabeth North grew more disconnected from 1975 through 1991-2005, then improved. Notably, Simpang Ampat had a more connected network than Elizabeth North in 1975 but the two have since reversed their relative ranking.