osrm (version 2.0.0)

osrmTable: Get Travel Time Matrices Between Points

Description

Build and send OSRM API queries to get travel time matrices between points. This function interface the table OSRM service.

Usage

osrmTable(loc, locId, locLat, locLon, src = NULL, srcId, srcLat, srcLon,
  dst = NULL, dstId, dstLat, dstLon)

Arguments

loc

data frame containing points identifiers, longitudes and latitudes (WGS84). If loc parameter is used, all pair-wise distances are computed.

locId

identifier field in loc.

locLat

latitude field in loc.

locLon

longitude field in loc.

src

data frame containing origin points identifiers, longitudes and latitudes (WGS84). If dst and src parameters are used, only pairs between scr/dst are computed.

srcId

identifier field in src

srcLat

latitude fiels in src

srcLon

longitude field in src

dst

data frame containing destination points identifiers, longitudes and latitudes (WGS84). If dst and src parameters are used, only pairs between scr/dst are computed.

dstId

identifier field in dst

dstLat

latitude field in dst

dstLon

longitude field in dst

Value

• A list containing 3 data frames is returned. distance_table is the matrix of travel times (in minutes), source_coordinates and destination_coordinates are the coordinates of the origin and destination points actually used to compute the travel times.

Examples

# Load data
data("com")
# Travel time matrix
distCom <- osrmTable(loc = com[1:50,], 
                     locId = "comm_id", 
                     locLat = "lat", 
                     locLon = "lon")
# First 5 rows and columns
distCom$distance_table[1:5,1:5]
distCom2 <- osrmTable(src = com[1:50,], 
                      srcId = "comm_id", srcLat = "lat", srcLon = "lon", 
                      dst = com[51:100,], 
                      dstId = "comm_id", dstLat = "lat", dstLon = "lon")
# First 5 rows and columns
distCom2$distance_table[1:5,1:5]