otp_isochrone: Get the Isochrones from a location

In ropensci/opentripplanner: Setup and connect to 'OpenTripPlanner'

Get the Isochrones from a location

Description

Get the Isochrones from a location

Usage

otp_isochrone(
  otpcon = NA,
  fromPlace = NA,
  fromID = NULL,
  mode = "CAR",
  date_time = Sys.time(),
  arriveBy = FALSE,
  maxWalkDistance = 1000,
  routingOptions = NULL,
  cutoffSec = c(600, 1200, 1800, 2400, 3000, 3600),
  ncores = max(round(parallel::detectCores() * 1.25) - 1, 1),
  timezone = otpcon$timezone
)

Arguments

otpcon	OTP connection object produced by otp_connect()
fromPlace	Numeric vector, Longitude/Latitude pair, e.g. 'c(-0.134649,51.529258)', or 2 column matrix of Longitude/Latitude pairs, or sf data frame of POINTS
fromID	character vector same length as fromPlace
mode	character vector of one or more modes of travel valid values "TRANSIT","BUS", "RAIL", "SUBWAY","TRAM", "FERRY", "GONDOLA", "FUNICULAR", "AIRPLANE", "CABLE_CAR", "WALK", "BICYCLE", "BICYCLE_RENT", "BICYCLE_PARK", "CAR", "CAR_PARK", "CAR_HAIL", "CARPOOL", "CAR_DROPOFF", "CAR_PICKUP", default CAR. Not all combinations are valid e.g. c("WALK","BUS") is valid but c("WALK","CAR") is not.
date_time	POSIXct, a date and time, defaults to current date and time
arriveBy	Logical, Whether the trip should depart or arrive at the specified date and time, default FALSE
maxWalkDistance	maximum distance to walk in metres
routingOptions	named list passed to OTP see 'otp_routing_options()'
cutoffSec	Numeric vector, number of seconds to define the break points of each Isochrone
ncores	number of cores to use in parallel processing
timezone	character, timezone to use, default from otpcon

Details

Isochrones are maps of equal travel time, for a given location a map is produced showing how long it takes to reach each location.

Isochrones are only available from OTP v1.x and will not work with v2.0

Value

Returns a SF data.frame of POLYGONs

See Also

Other routing: otp_geocode(), otp_plan(), otp_pointset(), otp_routing_options(), otp_validate_routing_options()

Examples

## Not run: 
isochrone1 <- otp_isochrone(otpcon, fromPlace = c(-0.1346, 51.5292))
isochrone2 <- otp_isochrone(otpcon,
  fromPlace = c(-0.1346, 51.5292),
  mode = c("WALK", "TRANSIT"), cutoffSec = c(600, 1200, 1800)
)

## End(Not run)

ropensci/opentripplanner documentation built on Dec. 25, 2024, 4:39 a.m.