Miami in context: Street-network sprawl trends

Miami in context

3.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
3.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
MiamiFlorida (Region)United States (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Miami plotted against Florida and United States. While Florida and United States both peaked in 1991-2005, Miami's new street additions peaked in 1991-2005. Most recently, Miami's incremental SNDi fell from 5.64 to 5.02 between 1991-2005 and 2006-2020. In terms of the aggregate network, Miami ranked 12th out of 27 cities in Florida and 242nd out of 333 in United States as of 2020.

New Street Additions (2006–2020)

SNDi value
5.02
Rank in United States
256th of 333
Rank in Florida
11th of 27

Entire Network (Aggregate)

SNDi value
3.91
Rank in United States
242nd of 333
Rank in Florida
12th of 27

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
MiamiYangonChicago

In new street additions, Miami built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Yangon fluctuated in its street-construction patterns and Chicago built increasingly disconnected streets over time. For the full network, Miami and Chicago both became progressively more disconnected, while Yangon grew more disconnected from 1975 through 1976-1990, then improved. Miami and Yangon have been growing further apart in their street-network character since 1975.