traveltime: Calculate Travel Times Over Space
Calculate travel time across a landscape from a set of
user-specified locations, over a friction surface describing the time
taken to cross each cell. Implements the least-cost travel time approach
of Weiss et al. (2018) <doi:10.1038/nature25181> and Weiss et al. (2020)
<doi:10.1038/s41591-020-1059-1>, and provides convenient access to their
global walking and motorised friction surfaces via the 'malariaAtlas'
package. Travel times are computed with 'terra'. See Ryan et al. (2025)
<doi:10.12688/gatesopenres.16356.1> for further details.
| Version: |
1.0.0 |
| Depends: |
R (≥ 4.1.0) |
| Imports: |
cli, malariaAtlas, terra |
| Suggests: |
geodata, ggplot2, knitr, rmarkdown, testthat (≥ 3.0.0), tidyterra |
| Published: |
2026-10-31 |
| DOI: |
10.32614/CRAN.package.traveltime (may not be active yet) |
| Author: |
Gerry Ryan  [aut,
cre],
Daniel Weiss
[aut],
Nicholas Tierney
[ctb] |
| Maintainer: |
Gerry Ryan <gerry.ryan at thekids.org.au> |
| BugReports: |
https://github.com/idem-lab/traveltime/issues |
| License: |
MIT + file LICENSE |
| Copyright: |
The 'stations' data contains information from the Land
Transport Authority of Singapore, made available under the
Singapore Open Data Licence version 1.0; see ?stations. |
| URL: |
https://idem-lab.github.io/traveltime/,
https://github.com/idem-lab/traveltime |
| NeedsCompilation: |
no |
| Language: |
en-GB |
| Citation: |
traveltime citation info |
| Materials: |
README, NEWS |
| CRAN checks: |
traveltime results |
Documentation:
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