The Fractal Geometry of Turkey's Urban Transportation Networks

This study presents a fractal analysis of the urban transportation systems of Turkey. Box-counting fractal dimensions were determined by using BENOIT, analysing the 81 cities in Turkey. A simple statistical model was derived, using log-linear functions, to indicate the relationships between fractal dimension and the urban form parameters of urbanized area, urban population, number of the urban transportation network's lines, and the urban transportation network lines' total lengths. The results show that the Turkish systems have box-counting fractal dimensions (D-b) between 1.438 and 1.795. A strong correlation was found between D-b and the Log of all urban parameters, with an R-2 of 0.880. The strongest positive singular correlation, with R-2 equalling 0.800, was between D-b and the log of number of lines in network. D-b and log of network line's total length also had a strong positive correlation, with an R-2 of 0.756. Moderate positive correlations were found between D-b and the logs of both urbanized area and population, with R-2 of 0.573 and 0.456, respectively. Results support the theory that considers fractal dimension an indicator of a network's complexity, as a mature city would likely have a better, more complex transport network system than a less mature one.

Dergi

KSCE JOURNAL OF CIVIL ENGINEERING

Yıl

2021

Cilt

25

Sayı

4

Sayfa

1455-1466

ISSN

1226-7988

eISSN

1976-3808

DOI

10.1007/s12205-021-1538-z

WoS UID

WOS:000609372300004