Batman in context: Street-network sprawl trends

Batman in context

1.622.42.8<19751976–19901991–20052006–2020SNDi of street additions
1.622.42.8<19751976–19901991–20052006–2020SNDi of entire street network
BatmanTurkey (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Batman plotted against Turkey. Both Batman and Turkey follow the same trend. Most recently, Batman's incremental SNDi rose from 1.58 to 1.87 between 1991-2005 and 2006-2020. In terms of the aggregate network, Batman ranked 40th out of 174 in Turkey as of 2020.

New Street Additions (2006–2020)

SNDi value
1.87
Rank in Turkey
49th of 174

Entire Network (Aggregate)

SNDi value
1.66
Rank in Turkey
40th of 174

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

What about similarly populated cities?

1.42.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
BatmanTong'anPakpattan

While Tong'an and Pakpattan both built increasingly disconnected streets from 1975 through 1991-2005, then improved, Batman fluctuated in its street-construction patterns in new street additions. For the full network, Batman fluctuated in connectivity, while Tong'an grew more disconnected from 1975 through 1991-2005, then improved and Pakpattan became progressively more disconnected. Batman and Pakpattan have been growing further apart in their street-network character since 1975.