Nenmara 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 Nenmara plotted against Kerala and India. The SNDi of new construction in Nenmara 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, Nenmara's incremental SNDi rose from 5.06 to 5.64 between 1991-2005 and 2006-2020. In terms of the aggregate network, Nenmara ranked 23rd out of 48 cities in Kerala and 1431st 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?

• Camarillo, United States
• Mkoba, Zimbabwe
• Yuanshi, China
• Xianhu Economic Development Zone, China
• Pipra, India
• Gushan, China

In new street additions, Nenmara built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Camarillo built increasingly disconnected streets from 1975 through 1976-1990, then improved and Xianhu Economic Development Zone fluctuated in its street-construction patterns. For the full network, Nenmara became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Camarillo grew more disconnected from 1975 through 1991-2005, then improved and Xianhu Economic Development Zone fluctuated in connectivity. Nenmara and Camarillo have been converging in their street-network character since 1975.