Transport Accessibility Measures R package accessibility version 1.5.0 A set of fast and convenient functions to help conducting accessibility analyses. Given a pre-computed travel cost matrix and a land use dataset (containing for example the location of jobs, healthcare and population), the package allows one to calculate accessibility levels, and accessibility poverty and inequality. The package covers the majority of the most commonly used accessibility measures (such as cumulative opportunities, gravity-based and floating catchment areas methods), some cutting edge measures proposed in the literature (e.g. balancing cost and constrained accessibility) as well as the most frequently used inequality and poverty metrics (such as the Palma ratio, the concentration and Theil indices and the FGT family of measures). Software Depends: R (>= 3.5.0) Imports: checkmate, data.table, Hmisc, Rdpack (>= 0.7), stats, utils Suggests: covr, ggplot2, knitr, rmarkdown, sf, testthat, tibble Daniel Herszenhut <dhersz@gmail.com> Comprehensive R Archive Network (CRAN) Rafael H. M. Pereira [aut] (ORCID: <https://orcid.org/0000-0003-2125-7465>), Daniel Herszenhut [aut, cre] (ORCID: <https://orcid.org/0000-0001-8066-1105>), Anastasia Soukhov [aut], Christopher Higgins [ctb], Joey Reid [ctb], Ipea - Institute for Applied Economic Research [cph, fnd] MIT + file LICENSE (https://CRAN.R-project.org/package=accessibility/LICENSE) 2026-05-12 application/tgz https://CRAN.R-project.org/package=accessibility doi:10.32614/CRAN.package.accessibility