Quảng Ninh: region in Vietnam
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 Quảng Ninh, Vietnam on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Quảng Ninh as of 2014, the overall level of street-network sprawl is 3.59, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 4.75, 3.26, 3.5 and 3.66. The disconnectivity of new streets constructed in Quảng Ninh fell, then rose. In 1976-1990, new street layouts were the most connected.
Quantity of street network construction: The street network in Quảng Ninh spans a total of 3347 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 3.66, which is highly disconnected.
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 4.75, 3.35, 3.39 and 3.59. The SNDi of the aggregate street network in fell at first, but Quảng Ninh has worsened in disconnectivity since 1990.
The level of street-network sprawl in new development in Quảng Ninh was at its lowest in 1976-1990. To get a sense of how street development has changed in Quảng Ninh, we can consider three of its most populous cities: Ha Long, Cẩm Phả and Uông Bí. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Ha Long followed a zig-zag trend with an overall decrease. The level of street-network sprawl in new development in Cẩm Phả followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Uông Bí followed a zig-zag trend.
How do development practices in Quảng Ninh fare in comparison to others in Vietnam? Most recently in 2001-2014, street construction in Quảng Ninh was the 36th-most disconnected out of the 59 regions in Vietnam. Its position in the ranks since 1975 has fallen; relative to other regions in Vietnam, street construction in Quảng Ninh has become more connected. Quảng Ninh ranked 5th in 1975, 22nd in 1976-1990, 24th in 1991-2000 and 36th in 2001-2014.
As of 2014, the city with the most disconnected street network in Quảng Ninh is Cẩm Phả with an SNDi of 3.76, which is highly disconnected. Conversely, the most connected city is Uông Bí with an SNDi of 1.23, which is relatively well-connected. See trends for these cities: Uông Bí, Cẩm Phả
The level of street-network sprawl in the aggregate network in Quảng Ninh was at its lowest in 1976-1990. To get a sense of how the aggregate street network has changed in Quảng Ninh, we can consider three of its most populous cities: Ha Long, Cẩm Phả and Uông Bí. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Ha Long followed a zig-zag trend with an overall decrease. The level of street-network sprawl in the aggregate network in Cẩm Phả peaked in 1976-1990. The level of street-network sprawl in the aggregate network in Uông Bí followed a zig-zag trend.
To date, Quảng Ninh is the 23rd-most disconnected out of the 59 regions in Vietnam. Its position in the ranks since 1975 has fallen; relative to other regions in Vietnam, the street network in Quảng Ninh has become more connected. Quảng Ninh ranked 5th in 1975, 21st in 1976-1990, 22nd in 1991-2000 and 23rd in 2001-2014.