journey: Plan a journey with CycleStreets.net

In cyclestreets: Cycle Routing and Data for Cycling Advocacy

Plan a journey with CycleStreets.net

Description

R interface to the CycleStreets.net journey planning API, a route planner made by cyclists for cyclists. See cyclestreets.net/api for details.

Usage

journey(
  from,
  to,
  plan = "fastest",
  silent = TRUE,
  pat = NULL,
  base_url = "https://www.cyclestreets.net",
  reporterrors = TRUE,
  save_raw = "FALSE",
  ...
)

Arguments

from	Longitude/Latitude pair, e.g. c(-1.55, 53.80)
to	Longitude/Latitude pair, e.g. c(-1.55, 53.80)
plan	Text strong of either "fastest" (default), "quietest" or "balanced"
silent	Logical (default is FALSE). TRUE hides request sent.
pat	The API key used. By default this uses Sys.getenv("CYCLESTREETS").
base_url	The base url from which to construct API requests (with default set to main server)
reporterrors	Boolean value (TRUE/FALSE) indicating if cyclestreets (TRUE by default). should report errors (FALSE by default).
save_raw	Boolean value which returns raw list from the json if TRUE (FALSE by default).
...	Arguments passed to json2sf_cs

Details

Requires the internet and a CycleStreets.net API key. CycleStreets.net does not yet work worldwide.

You need to have an api key for this code to run. By default it uses the CYCLESTREETS environment variable. A quick way to set this is to install the usethis package and then executing the following command:

usethis::edit_r_environ()

That should open up a new file in your text editor where you can add the environment variable as follows (replace 1a... with your key for this to work):

CYCLESTREETS=1a43ed677e5e6fe9

After setting the environment variable, as outlined above, you need to restart your R session before the journey function will work.

See www.cyclestreets.net/help/journey/howitworks/ for details on how these are calculated.

CycleStreets can give you lots of info at route and segment level. Commonly useful columns include:

cols = c("name", "provisionName", "time", "quietness", "edition", "gradient_smooth")

See json2sf_cs() for details.

See Also

json2sf_cs

Examples

## Not run: 
from = c(-1.55, 53.80) # geo_code("leeds")
to = c(-1.76, 53.80) # geo_code("bradford uk")
r1 = journey(from, to)
names(r1)
cols = c("name", "provisionName", "distances", "time", "quietness", "edition", "gradient_smooth")
r2 = journey(from, to, cols_to_keep = cols)
names(r2)
r2
r1[1:2, ]
r1$grammesCO2saved
r1$calories
plot(r1[1:4])
plot(r1[10:ncol(r1)])
to = c(-2, 53.5) # towards Manchester
r1 = journey(from, to)
names(r1)
r2 = journey(from, to, plan = "balanced")
plot(r1["quietness"], reset = FALSE)
plot(r2["quietness"], add = TRUE)
r3 = journey(from, to, silent = FALSE)
r4 = journey(from, to, save_raw = TRUE)
r5 = journey(c(-1.524, 53.819), c(-1.556, 53.806))
plot(r5["gradient_segment"])
plot(r5["gradient_smooth"])

u = paste0("https://github.com/cyclestreets/cyclestreets-r/",
  "releases/download/v0.4.0/line_with_single_segment.geojson")
desire_line = sf::read_sf(u)
r = stplanr::route(l = desire_line, route_fun = journey)
r

## End(Not run)

cyclestreets documentation built on Sept. 11, 2024, 7:49 p.m.