Troy in context: Street-network sprawl trends

Troy in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
TroyNew York (Region)United States (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Troy plotted against New York and United States. The SNDi of new construction in Troy peaked in 1976-1990, compared to New York which followed a zig-zag trend with an overall increase and United States which peaked in 1991-2005. Most recently, Troy's incremental SNDi fell from 4.97 to 2.67 between 1991-2005 and 2006-2020. In terms of the aggregate network, Troy ranked 7th out of 12 cities in New York and 125th out of 333 in United States as of 2020.

New Street Additions (2006–2020)

SNDi value
2.67
Rank in United States
27th of 333
Rank in New York
2nd of 12

Entire Network (Aggregate)

SNDi value
2.85
Rank in United States
125th of 333
Rank in New York
7th of 12

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
TroyMahmud-e RaqiAin Oulmane

While Mahmud-e Raqi and Ain Oulmane both fluctuated in its street-construction patterns, Troy built increasingly disconnected streets from 1975 through 1976-1990, then improved in new street additions. For the full network, Troy grew more disconnected from 1975 through 1991-2005, then improved, while Mahmud-e Raqi fluctuated in connectivity and Ain Oulmane became progressively more disconnected.