pems {MetricGraph}

Traffic speed data from San Jose, California

Description

Data set of traffic speed observations on highways in the city of San Jose, California.

Usage

pems

Format

pems

A list with three elements:

edges

A list object containing the coordinates of the road segments.

data

Locations of the observations on the road segments as a data.frame with 325 rows and 2 columns. The first column indicates the edge number and the second column indicates the distance on edge of the position.

Y

Observations of traffic speed. Consists of a vector with 325 observations.

Source

https://www.openstreetmap.org

https://github.com/spbu-math-cs/Graph-Gaussian-Processes/blob/main/examples/data/PEMS.zip

References

Chen, C., K. Petty, A. Skabardonis, P. Varaiya, and Z. Jia (2001). Freeway performance measurement system: mining loop detector data. Transportation Research Record 1748(1), 96–102.

OpenStreetMap contributors (2017). Planet dump retrieved from https://planet.osm.org. https://www.openstreetmap.org.