Mianeh in context: Street-network sprawl trends

Mianeh 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
MianehEast Azarbaijan (Region)Iran (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Mianeh plotted against East Azarbaijan and Iran. The SNDi of new construction in Mianeh was at its lowest in 1976-1990, compared to East Azarbaijan which rose steadily and Iran which rose steadily. Most recently, Mianeh's incremental SNDi rose from 2.8 to 4.06 between 1991-2005 and 2006-2020. In terms of the aggregate network, Mianeh ranked 2nd out of 8 cities in East Azarbaijan and 58th out of 169 in Iran as of 2020.

New Street Additions (2006–2020)

SNDi value
4.06
Rank in Iran
132nd of 169
Rank in East Azarbaijan
7th of 8

Entire Network (Aggregate)

SNDi value
2.75
Rank in Iran
58th of 169
Rank in East Azarbaijan
2nd of 8

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

What about similarly populated cities?

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
MianehQala i NawTucurui

In new street additions, Mianeh and Qala i Naw both built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Tucuruí built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Mianeh became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Qala i Naw became progressively more connected and Tucuruí grew more disconnected from 1975 through 1991-2005, then improved. Notably, Mianeh had a more connected network than Tucuruí in 1975 but the two have since reversed their relative ranking.