Płock in context: Street-network sprawl trends

Plock in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
PlockMazowieckie (Region)Poland (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Płock plotted against Mazowieckie and Poland. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Płock's incremental SNDi rose from 3.6 to 4.21 between 1991-2005 and 2006-2020. In terms of the aggregate network, Płock ranked 5th out of 6 cities in Mazowieckie and 56th out of 63 in Poland as of 2020.

New Street Additions (2006–2020)

SNDi value
4.21
Rank in Poland
50th of 63
Rank in Mazowieckie
5th of 6

Entire Network (Aggregate)

SNDi value
2.88
Rank in Poland
56th of 63
Rank in Mazowieckie
5th of 6

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
PlockJianshiGuiglo

In new street additions, Płock built increasingly disconnected streets over time, while Jianshi built increasingly disconnected streets from 1975 through 1991-2005, then improved and Guiglo built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Płock and Guiglo both became progressively more disconnected, while Jianshi grew more disconnected from 1975 through 1991-2005, then improved. Notably, Płock had a more sprawly network than Jianshi in 1975 but the two have since reversed their relative ranking.