California Road Network

Large undirected, weighted road network of California. Nodes represent road intersections or endpoints, edges represent roads. Edge weights represent the Euclidean distance between intersections in miles. Highly connected large-scale transportation network suitable for testing scalability of graph algorithms.

npx keepset fetch snap-road-network-ca

Nodes: 1,965,206
Edges: 5,533,214
Size: 17.1 MiB

Fetch and preview this dataset on this page, or download the result as JSON. The command line fetches it without a browser.

Overview

Id	`snap-road-network-ca`
Namespace	`snap`
Aliases	`road-network-ca`
Category	`graph/v1`
Kind	graph
Domain	Transportation network
Licence	not recorded by the source
Catalogue	`keepset` 1.33.0

Sources and provenance

#	URL	Status	Retrieved	Read by recipe	Pinned snapshot	SHA-256
0	https://snap.stanford.edu/data/roadNet-CA.txt.gz	live	2026-03-26	yes

Citations

Leskovec et al. (2005). Graphs over time: densification laws, shrinking diameters and possible explanations. ACM SIGKDD Explorations Newsletter 7, 4-13.

Recipe

Source	#0
Archive	gzip
Parser format	`"edge-list"`
Parser encoding	`"utf-8"`
Parser delimiter	`"detect"`
Parser skipLines	`0`
Parser commentPrefixes	`["#","%"]`
Parser sourceColumn	`0`
Parser targetColumn	`1`

Crosswalk

keepset/topology to graph/v1, as a crossmap crosswalk.

Rule	From	To	Direction
move	`meta`	`meta`	both
move	`nodes[].id`	`nodes[].id`	both
move	`edges[].source`	`edges[].source`	both
move	`edges[].target`	`edges[].target`	both

Expected counts

Edges	5,533,214
Nodes	1,965,206

Properties

Components	2,638
Connected	no
Cyclic	yes
Density	0.000001433
Directed	no
Download bytes	17.1 MiB
Edge types	1
Heterogeneous	no
Multigraph	yes
Node types	1
Raw bytes	0 B
Self loops	no
Weighted	yes