R Observatory: Metrics for accessibility version 1.5.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

accessibility

1.5.0Package record

Transport Accessibility Measures

0packages dependsuggested by 1

7.8Kdownloads / year

98.9%test coverage

13/13flavors OK

Overview

About

Maintained by Daniel HerszenhutCRAN page ↗GitHub ↗Website ↗Issues ↗Declared funder: Ipea - Institute for Applied Economic Research

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).

Changes in 1.5.0

New features

New function constrained_accessibility(), which implements the family of

constrained accessibility measures proposed in \url{https://doi.org/10.1371/journal.pone.0335951}

Minor changes

The function fgt_poverty() has a new argument poor_below_threshold. when

set to TRUE (default,) the observations below the poverty line are considered

to be poor. This is the correct approach for primal accessibility measures (e.g.

cumulative accessibility). If FALSE, then observations above the poverty line

are considered to be poor. This is the correct approach for dual accessibility

measures (e.g. travel time to the closest facility). When set to FALSE, FGT 1

and 2 do not have an upper bound. Closes #63

From NEWS.md in the release

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("accessibility", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("ipeaGIT/accessibility")

Development version from ipeaGIT/accessibility. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-accessibility

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-accessibility

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-accessibility

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 2.7 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-09-08
ERROR12 OK, 1 ERROR2026-09-07
OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09

Show 2 earlier changesHide 2 earlier changes

ERROR12 OK, 1 ERROR2026-06-08
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.5.0

READMEYes · 277 wordsVignettesYes · 3 · evaluation depends on the environmentNEWSYes · 100% structured · mentions 1.5.0Citation fileNoWebsiteYes · pkgdown

Help pages: 23 (4 internal)includes a package overview page
Examples that run: 100%22 run in a plain check (18 of them under a condition)
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 95%
Help pages citing references: 35% with a bibliography file

Vignettes (3)

How these are measured

Downloads

7.8K

CRAN downloads in the past year

Rank #4,205 · ~21/day · ~653/mo

Releases R versions

Daily download trend is not available in this view yet.

93330 days

2.1K90 days

7.8K1 year

Compare downloads with other packages →

Also on208 r2u26 autocran

How downloads are counted

Repository

ipea/accessibility ↗Organization: ipea

Moved from ipeagit/accessibility.

71Stars

13Forks

8Open issues

0Open PRs

8Releases

385Commits

8Commit identities

accessibilityrtransporttransport-accessibility

385 commits · Last activity 2026-10-22 · +6% stars, 30d · Default branch at 1.5.0.9000, ahead of CRAN 1.5.0 (checked 2026-10-21)

Responsiveness

How these are sampled

PRs merged (all time): 83%
Median days to close, 50 most recently updated closed issues: 14
Median days to close, 50 most recently updated closed PRs: 9

Stars over time

2025-08-11 · 602026-10-18 · 70

How these are measured

PracticesBeta

14 development-tooling and community-health practices detected across 9 families in the upstream repository

Checks run against github.com/ipeagit/accessibility on 2026-10-21.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-10-21 · The repository has a site deploy workflow

pkgdown site last built 2026-08-23

Coverage (1)

Coverage reporting (Codecov)

Reproducibility and dev environment (1)

data-raw/

Show all practicesHide 5 practices

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Research and citation (1)

codemeta.json

Automation and maintenance (1)

pre-commit

Lint, format, editor (1)

RStudio project

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v4 (2026-10-20)

AI coding toolsBeta

This repository shows signs of AI coding tools.

Claude Codefirst seen 2026-10-20
Seen in the repository: .claude, CLAUDE.md
Named in .Rbuildignore: CLAUDE.md
Named in .gitignore: .claude

How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

11 external dependencies (excludes base and recommended)

Installing accessibility adds 53 packages (27 with compiled code, 53 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, data.table 5.7 MB.

Depends (1)

R >= 3.5.0

Imports (6)

checkmate data.table Hmisc Rdpackstatsutils

LinkingTo (0)

none

Suggests (7)

covr ggplot2 knitr rmarkdown sf testthat tibble

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Suggested by 1

Suggests, most downloaded first

r5r

How these are counted

Code & Tests

Datasets

People & History

People (6)

Daniel Herszenhut

Author, Maintainer since 1.0.0 (2022)

Rafael H. M. Pereira

Author

Anastasia Soukhov

Author · added in 1.5.0

Christopher Higgins

Contributor · added in 1.5.0

Joey Reid

Contributor · added in 1.4.0

Ipea - Institute for Applied Economic Research

Copyright holder, Funder

Previously maintained by Rafael H. M. Pereira (0.1.0).

Releases (8)

Pick two releases to compare their code metrics.

1.5.0Latest
record
2026-05-12 · current release · diff ↗ ·
added 1 export
constrained_accessibility
R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
1.4.0
record
2024-03-07 · diff ↗ ·
added 1 export
decay_logistic
1.3.0
record
2023-10-20 · diff ↗
1.2.0
record
2023-09-21 · diff ↗ ·
added 2 exports
concentration_index, theil_t
1.1.0
record
2023-06-22 · diff ↗ ·
added 5 exports
balancing_cost, fgt_poverty, gini_index, palma_ratio, spatial_availability
R
R 4.3.0 released · 2023-04-21
1.0.1
record
2022-10-06 · diff ↗
1.0.0
record
2022-07-23 · diff ↗ ·
removed 4 exports
cumulative_time_cutoff, cumulative_time_interval, gravity_access, time_to_closest

added 5 exports
cost_to_closest, cumulative_cutoff, cumulative_interval, decay_stepped, gravity
0.1.0
record
2022-06-30
R
R 4.2.0 released · 2022-04-22

Package metadata

First published: 2022-06-30
Total releases: 8 / 4 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 3.5.0
Download size: 2.6 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("accessibility")

Format

Herszenhut, D., Ipea - Institute for Applied Economic Research, Higgins, C., Pereira, R. H. M., Reid, J., & Soukhov, A. (2026). accessibility: Transport Accessibility Measures (Version 1.5.0) [Computer software]. https://doi.org/10.32614/CRAN.package.accessibility

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for accessibility version 1.5.0 [Data set]. HJJB, LLC. Data release v2026-10-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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