Vadakkenchery 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 Vadakkenchery plotted against Kerala and India. The SNDi of new construction in Vadakkenchery was at its lowest in 1976-1990, compared to Kerala which was at its lowest in 1976-1990 and India which followed a zig-zag trend with an overall increase. Most recently, Vadakkenchery's incremental SNDi rose from 4.08 to 5.46 between 1991-2005 and 2006-2020. In terms of the aggregate network, Vadakkenchery ranked 7th out of 48 cities in Kerala and 1053rd out of 1868 in India as of 2020.

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

What about similarly populated cities?

• Mazabuka, Zambia
• Ramnagri, Jammu and Kashmir
• Sopore, Jammu and Kashmir
• Nurabad, Iran
• Santa Cruz del Quiché, Guatemala
• Carnot, Central African Republic

While Mazabuka and Nurabad both fluctuated in its street-construction patterns, Vadakkenchery built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns in new street additions. Looking at the full network, Mazabuka and Nurabad both became progressively more disconnected, while Vadakkenchery became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards.