Coahuila: region in Mexico
What exactly constitutes the spatial extent of the city? For these aggregations, we used the Global Human Settlement Layer Urban Center Database (GHS-UCDB) to define the boundaries of the city. These cities -- or urban centers -- cover areas that are densely populated and built-up, and so may extend beyond the spatial borders of these cities that we may be familiar with. The GHS area is shaded in blue.
View Coahuila, Mexico on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Coahuila as of 2014, the overall level of street-network sprawl is 2.49, which is in the 40th to 60th percentile of disconnectedness.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.34, 1.83, 2.27 and 3.78. The disconnectivity of new streets constructed in Coahuila fell, then rose. In 1976-1990, new street layouts were the most connected.
Quantity of street network construction: The street network in Coahuila spans a total of 18920 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 1.83, which is relatively well-connected.
Effect on the aggregate network: New construction in each period adds to the total stock of streets, but does not change streets that have already been built. Therefore, it has a limited effect on the street network as a whole. The SNDis of the aggregate street network in the respective time periods are 2.34, 1.92, 1.99 and 2.49. The SNDi of the aggregate street network in fell at first, but Coahuila has worsened in disconnectivity since 1990.
The level of street-network sprawl in new development in Coahuila was at its lowest in 1976-1990. To get a sense of how street development has changed in Coahuila, we can consider three of its most populous cities: Torreon, Saltillo and Monclova. Disconnectivity in the most populous cities in Coahuila follow the same region trend.
How do development practices in Coahuila fare in comparison to others in Mexico? Most recently in 2001-2014, street construction in Coahuila was the 23rd-most disconnected out of the 32 regions in Mexico. Its position in the ranks since 1975 has fallen; relative to other regions in Mexico, street construction in Coahuila has become more connected. Coahuila ranked 13th in 1975, 27th in 1976-1990, 29th in 1991-2000 and 23rd in 2001-2014.
As of 2014, the city with the most disconnected street network in Coahuila is Piedras Negras with an SNDi of 2.07, which is relatively well-connected. Conversely, the most connected city is Matamoros with an SNDi of 0.39, which is very well-connected. See trends for these cities: Matamoros, Piedras Negras
The level of street-network sprawl in the aggregate network in Coahuila was at its lowest in 1976-1990. To get a sense of how the aggregate street network has changed in Coahuila, we can consider three of its most populous cities: Torreon, Saltillo and Monclova. Disconnectivity in the most populous cities in Coahuila follow the same region trend.
To date, Coahuila is the 21st-most disconnected out of the 32 regions in Mexico. Its position in the ranks since 1975 has fallen; relative to other regions in Mexico, the street network in Coahuila has become more connected. Coahuila ranked 13th in 1975, 25th in 1976-1990, 25th in 1991-2000 and 21st in 2001-2014.