decode_geom             Transform encoded polylines to lat-lng
                        data.frame.
encoded_string_api_4    encoded_string_api_4: An encoded route to
                        illustrate the 'osrmr::decode_geom()' function.
                        After decoding all points on the route are
                        available as wgs84 coordinates. Decoding varies
                        on the API version of OSRMR. This version is
                        decoded using API v4.
encoded_string_api_5    encoded_string_api_5: An encoded route to
                        illustrate the 'osrmr::decode_geom()' function.
                        After decoding all points on the route are
                        available as wgs84 coordinates. Decoding varies
                        on the API version of OSRMR. This version is
                        decoded using API v5.
nearest                 nearest accessible position
nearest_api_v4          nearest accessible position for OSRM API v4
nearest_api_v5          nearest accessible position for OSRM API v5
quit_server             Quit local OSRM server
run_server              Start local OSRM server
server_address          server_address() returns the URL address of the
                        OSRM localhost or OSRM webserver, depending on
                        the value of the variable 'use_localhost'. This
                        is an internal function. The address is used as
                        a part of a OSRM server-request.
viaroute                travel time or full information of a route
viaroute_api_v4         travel time or full information of a route for
                        OSRM API 4
viaroute_api_v5         travel time or full information of a route for
                        OSRM API 5
