Semantic Scholar Open Access 2006 385 sitasi

Scaling laws in the spatial structure of urban road networks

Stefan Lammer B. Gehlsen D. Helbing

Lihat Sumber DOI

Abstrak

The urban road networks of the 20 largest German cities have been analysed, based on a detailed database providing the geographical positions as well as the travel-times for network sizes up to 37,000 nodes and 87,000 links. As the human driver recognises travel-times rather than distances, faster roads appear to be ‘shorter’ than slower ones. The resulting metric space has an effective dimension δ>2, which is a significant measure of the heterogeneity of road speeds. We found that traffic strongly concentrates on only a small fraction of the roads. The distribution of vehicular flows over the roads obeys a power law, indicating a clear hierarchical order of the roads. Studying the cellular structure of the areas enclosed by the roads, the distribution of cell sizes is scale invariant as well.

Topik & Kata Kunci

Physics Computer Science

Penulis (3)

Stefan Lammer

B. Gehlsen

D. Helbing

Format Sitasi

APA MLA BibTeX

Lammer, S., Gehlsen, B., Helbing, D. (2006). Scaling laws in the spatial structure of urban road networks. https://doi.org/10.1016/j.physa.2006.01.051

Akses Cepat

Lihat di Sumber doi.org/10.1016/j.physa.2006.01.051

Informasi Jurnal

Tahun Terbit: 2006
Bahasa: en
Total Sitasi: 385×
Sumber Database: Semantic Scholar
DOI: 10.1016/j.physa.2006.01.051
Akses: Open Access ✓