Assigns a free-flow speed (km/h) to every edge based on its highway class,
adding a speed_kph column. Unknown classes get fallback.
Arguments
- g
An osm_graph.
- speeds
Optional named numeric vector of
highway = kphoverrides, merged over the built-in defaults.- fallback
Speed (km/h) for edges with no matching class. Default
40.
Value
The osm_graph with a speed_kph edge column.
Examples
g <- example_osm_graph()
g <- ox_add_edge_speeds(g, speeds = c(residential = 25))
head(g$edges$speed_kph)
#> [1] 25 25 25 25 25 25