travel_time: Travel time to a city or port

View source: R/travel_time.R

travel_timeR Documentation

Travel time to a city or port

Description

Download global travel time to a city or port data on rasters at a 30 arc-seconds (about 1 km2) resolution.

Usage

travel_time(to="city", size=1, up=FALSE, path, ...) 

Arguments

to

character. "city" or "port"

size

positive integer indicating the size of the city or port. Can be between 1 and 9 if to="city" or between 1 and 5 if to="port". See Details

up

logical. If TRUE the travel time to a city of the size chosen or larger is returned

path

character. Path for storing the downloaded data. See geodata_path

...

additional arguments passed to download.file

Details

Description of the the size argument.

to="city"

size Inhabitants
1 5,000,000 to 50,000,000
2 1,000,000 to 5,000,000
3 500,000 to 1,000,000
4 200,000 to 500,000
5 100,000 to 200,000
6 50,000 to 100,000
7 20,000 to 50,000
8 10,000 to 20,000
9 5,000 to 10,000

to="port"

size Description Number of ports
1 Large 160
2 Medium 361
3 Small 990
4 Very small 2,153
5 Any 3,778

Value

SpatRaster

References

Nelson, A., D.J. Weiss, J. van Etten, A. Cattaneo, T.S. McMenomy & J. Koo, 2019. A suite of global accessibility indicators. Scientific Data 6: 266. doi:10.1038/s41597-019-0265-5

Version 3 (2019-05-15) from https://figshare.com/articles/dataset/Travel_time_to_cities_and_ports_in_the_year_2015/7638134/3


rspatial/geodata documentation built on July 26, 2024, 8:43 a.m.