Érd in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Érd plotted against Pest and Hungary. While Pest and Hungary both rose steadily, Érd's new street additions rose steadily. Most recently, Érd's incremental SNDi rose from 2.71 to 3.73 between 1991-2005 and 2006-2020. In terms of the aggregate network, Érd ranked 1st out of 1 cities in Pest and 4th out of 13 in Hungary as of 2020.

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

What about similarly populated cities?

• Sagasi-Deybuk, Russia
• Sasni, India
• Palm Coast, United States
• Galikash, Iran
• Pasab, Afghanistan
• Wuxuan, China

In new street additions, Érd and Galikash both built increasingly disconnected streets over time, while Sagasi-Deybuk built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Érd and Galikash both became progressively more disconnected, while Sagasi-Deybuk became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Érd and Galikash have been growing further apart in their street-network character since 1975.