I have registered in Google to obtain more requests of drive time distances. However Google doesn\'t automatically pick up this \"permission\" to run more than 2500 queries
I've written the package googleway to access google maps API where you can specify your token key
For example
library(googleway)
key <- "your_api_key"
google_distance(origins = list("houston", "Dallas"),
destinations = list("waco, Texas", "San Antonio"),
key = key,
simplify = FALSE) ## use simplify = T to simplify to a data.frame
[1] "{"
[2] " \"destination_addresses\" : [ \"Waco, TX, USA\", \"San Antonio, TX, USA\" ],"
[3] " \"origin_addresses\" : [ \"Houston, TX, USA\", \"Dallas, TX, USA\" ],"
[4] " \"rows\" : ["
[5] " {"
[6] " \"elements\" : ["
[7] " {"
[8] " \"distance\" : {"
[9] " \"text\" : \"299 km\","
[10] " \"value\" : 298585"
[11] " },"
[12] " \"duration\" : {"
[13] " \"text\" : \"2 hours 51 mins\","
[14] " \"value\" : 10244"
[15] " },"
[16] " \"duration_in_traffic\" : {"
[17] " \"text\" : \"2 hours 52 mins\","
[18] " \"value\" : 10343"
[19] " },"
[20] " \"status\" : \"OK\""
[21] " },"
... etc