Londonderry/Derry: city in Northern Ireland, United Kingdom
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 Londonderry/Derry, United Kingdom on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Londonderry/Derry as of 2014, the overall level of street-network sprawl is 7.72, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 6.42, 10.42, 11.34 and 9.59. Street construction in Londonderry/Derry increased in disconnectivity initially but has since improved. The streets constructed in 1991-2000 were the most disconnected.
Quantity of street network construction: The street network in Londonderry/Derry spans a total of 290 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 6.42, 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 6.42, 7.04, 7.7 and 7.72. Overall, the SNDi of the aggregate street network has risen: the street network in Londonderry/Derry has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.62 points, but between 1991-2000 and 2001-2014, it rose by just 0.01.
Londonderry/Derry and Northern Ireland follow the same trend in the disconnectivity of their street network constructions. The SNDi for both of these peaked in 1991-2000.
How do development practices in Londonderry/Derry fare in comparison to others in Northern Ireland? Most recently in 2001-2014, street construction in Londonderry/Derry was the 1st-most disconnected out of the 3 cities in Northern Ireland. Its position in the ranks since 1975 has not changed. Londonderry/Derry ranked 1st in 1975, 1st in 1976-1990, 3rd in 1991-2000 and 1st in 2001-2014.
Londonderry/Derry and United Kingdom follow the same trend in the disconnectivity of their street network constructions. The SNDi for both of these peaked in 1991-2000.
How do development practices in Londonderry/Derry fare in comparison to others in United Kingdom? Most recently in 2001-2014, street construction in Londonderry/Derry was the 5th-most disconnected out of the 138 cities in United Kingdom. Its position in the ranks since 1975 has fallen; relative to other cities in United Kingdom, street construction in Londonderry/Derry has become more connected. Londonderry/Derry ranked 1st in 1975, 1st in 1976-1990, 4th in 1991-2000 and 5th in 2001-2014.
Londonderry/Derry and Northern Ireland do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Londonderry/Derry rose steadily, while the SNDi of street constructions in Northern Ireland peaked in 1991-2000.
To date, Londonderry/Derry is the 1st-most disconnected out of the 3 cities in Northern Ireland. Its position in the ranks since 1975 has not changed. Londonderry/Derry ranked 1st in 1975, 1st in 1976-1990, 1st in 1991-2000 and 1st in 2001-2014.
Londonderry/Derry and United Kingdom do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Londonderry/Derry rose steadily, while the SNDi of street constructions in United Kingdom peaked in 1991-2000.
To date, Londonderry/Derry is the 1st-most disconnected out of the 138 cities in United Kingdom. Its position in the ranks since 1975 has not changed. Londonderry/Derry ranked 1st in 1975, 1st in 1976-1990, 1st in 1991-2000 and 1st in 2001-2014.
As of 2015, Londonderry/Derry had a built-up area of 9.01 square kilometers, and a population of 68343 people.
These are some other cities with approximately the same population: