Street-network Sprawl in Zenica, Bosnia and Herzegovina

What is Street-network sprawl?

Street-network Sprawl is a way to measure urban sprawl, worldwide, through the connectedness of the streets. Less sprawl means more connected, more walkable streets. Well-connected streets – like New York City’s grid – are more walkable and can be served by public transit.

The street network is permanent, and its connectivity affects the livability and environmental footprint of cities for decades and centuries to come. In places with more connected streets, residents drive less and walk more. A well-connected street network is associated with better outcomes for health, the environment, sustainable consumption, social integration, and equity.

We can quantify how connected street networks are with the Street Network Disconnectedness Index (SNDi).

SNDi -- our measure of street-network sprawl (disconnectedness)

The SNDi is a comprehensive measurement of “sprawl”. It captures:

A higher SNDi means less-connected streets – i.e., more sprawl. For the 10137 cities in our dataset, the average SNDi is 2.25, with half of the cities' SNDis falling between 1.08 and 3.25.

More information on the sprawl index can be found in these research papers:

To see the state of street-network sprawl across the globe, visit the sprawlmap.

Zenica: city in Federacija Bosna i Hercegovina, Bosnia and Herzegovina

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 Zenica, Bosnia and Herzegovina on the sprawlmap

Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Zenica as of 2014, the overall level of street-network sprawl is 4.5, which is highly disconnected.

Trends in street network construction: The SNDis of street construction for the respective time periods are 4.1, 9.62, nan and nan. Data was not available in 1991-2000 and 2001-2014.

Quantity of street network construction: The street network in Zenica spans a total of 177 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 4.1, 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 4.1, 4.49, 4.53 and 4.5. The aggregate street network in Zenica increased in disconnectivity initially,but the trend has turned around after 2000.

Zenica and Federacija Bosna i Hercegovina do not follow the same trend in the disconnectivity of their street network constructions. There was not enough data from the city, while the SNDi of street constructions in Federacija Bosna i Hercegovina followed a zig-zag trend with an overall increase.

How do development practices in Zenica fare in comparison to others in Federacija Bosna i Hercegovina? out of the 4 cities in Federacija Bosna i Hercegovina. Its position in the ranks since 1975 has risen; relative to other cities in Federacija Bosna i Hercegovina, street construction in Zenica has become more disconnected. Zenica ranked 2nd in 1975 and 1st in 1976-1990. There was no ranking in 1991-2000 and 2001-2014 due to unavailable data.

Zenica and Bosnia and Herzegovina do not follow the same trend in the disconnectivity of their street network constructions. There was not enough data from the city, while the SNDi of street constructions in Bosnia and Herzegovina followed a zig-zag trend with an overall increase.

How do development practices in Zenica fare in comparison to others in Bosnia and Herzegovina? out of the 5 cities in Bosnia and Herzegovina. Its position in the ranks since 1975 has risen; relative to other cities in Bosnia and Herzegovina, street construction in Zenica has become more disconnected. Zenica ranked 2nd in 1975 and 1st in 1976-1990. There was no ranking in 1991-2000 and 2001-2014 due to unavailable data.

Zenica and Federacija Bosna i Hercegovina do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Zenica peaked in 1991-2000, while the SNDi of street constructions in Federacija Bosna i Hercegovina rose steadily.

To date, Zenica is the 2nd-most disconnected out of the 4 cities in Federacija Bosna i Hercegovina. Its position in the ranks since 1975 has not changed. Zenica ranked 2nd in 1975, 2nd in 1976-1990, 2nd in 1991-2000 and 2nd in 2001-2014.

Zenica and Bosnia and Herzegovina do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Zenica peaked in 1991-2000, while the SNDi of street constructions in Bosnia and Herzegovina rose steadily.

To date, Zenica is the 2nd-most disconnected out of the 5 cities in Bosnia and Herzegovina. Its position in the ranks since 1975 has not changed. Zenica ranked 2nd in 1975, 2nd in 1976-1990, 2nd in 1991-2000 and 2nd in 2001-2014.

As of 2015, Zenica had a built-up area of 7.88 square kilometers, and a population of 84153 people.

These are some other cities with approximately the same population: