Tikab in context: Street-network sprawl trends

Tikab 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
TikabWest Azarbaijan (Region)Iran (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tikab plotted against West Azarbaijan and Iran. The SNDi of new construction in Tikab was at its lowest in 1991-2005, compared to West Azarbaijan which peaked in 1991-2005 and Iran which rose steadily. Most recently, Tikab's incremental SNDi rose from 2.17 to 2.28 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tikab ranked 4th out of 11 cities in West Azarbaijan and 24th out of 169 in Iran as of 2020.

New Street Additions (2006–2020)

SNDi value
2.28
Rank in Iran
19th of 169
Rank in West Azarbaijan
3rd of 11

Entire Network (Aggregate)

SNDi value
2.31
Rank in Iran
24th of 169
Rank in West Azarbaijan
4th of 11

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
TikabValladolidHuangyuan

In new street additions, Tikab built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Valladolid built increasingly disconnected streets over time and Huangyuan fluctuated in its street-construction patterns. For the full network, Tikab became progressively more connected, while Valladolid became progressively more disconnected and Huangyuan fluctuated in connectivity. Tikab and Valladolid have been converging in their street-network character since 1975.