Package: gtfs2emis 0.1.2

Joao Bazzo

gtfs2emis: Estimating Public Transport Emissions from General Transit Feed Specification (GTFS) Data

A bottom up model to estimate the emission levels of public transport systems based on General Transit Feed Specification (GTFS) data. The package requires two main inputs: i) Public transport data in the GTFS standard format; and ii) Some basic information on fleet characteristics such as fleet age, technology, fuel and Euro stage. As it stands, the package estimates several pollutants at high spatial and temporal resolutions. Pollution levels can be calculated for specific transport routes, trips, time of the day or for the transport system as a whole. The output with emission estimates can be extracted in different formats, supporting analysis on how emission levels vary across space, time and by fleet characteristics. A full description of the methods used in the 'gtfs2emis' model is presented in Vieira, J. P. B.; Pereira, R. H. M.; Andrade, P. R. (2022) <doi:10.31219/osf.io/8m2cy>.

Authors:Joao Bazzo [aut, cre], Rafael H. M. Pereira [aut], Pedro R. Andrade [aut], Sergio Ibarra-Espinosa [ctb], Ipea - Institute for Applied Economic Research [cph, fnd]

gtfs2emis_0.1.2.tar.gz
gtfs2emis_0.1.2.zip(r-4.7)gtfs2emis_0.1.2.zip(r-4.6)gtfs2emis_0.1.2.zip(r-4.5)
gtfs2emis_0.1.2.tgz(r-4.6-any)gtfs2emis_0.1.2.tgz(r-4.5-any)
gtfs2emis_0.1.2.tar.gz(r-4.7-any)gtfs2emis_0.1.2.tar.gz(r-4.6-any)
gtfs2emis_0.1.2.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
gtfs2emis/json (API)

# Install 'gtfs2emis' in R:
install.packages('gtfs2emis', repos = c('https://ipea.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/ipeagit/gtfs2emis/issues

Datasets:
  • ef_brazil_cetesb_db - Emission factors from Environment Company of Sao Paulo, Brazil
  • ef_europe_emep_db - Emission factors from European Environment Agency — EMEP/EEA
  • ef_usa_emfac_db - Emission factors from California Air Resources Board
  • ef_usa_moves_db - Emission factors from MOtor Vehicle Emission Simulator (MOVES) Data.frame of emission factors for buses based on values from the MOVES3 Model. Estimates expressed in units 'g/km'.

On CRAN:

Conda:

emissionsenvironmental-modellinggtfspublic-transportrspatialtransport

7.18 score 34 stars 37 scripts 193 downloads 12 exports 51 dependencies

Last updated from:99204aabe2. Checks:9 OK. Indexed: yes.

TargetResultTimeFilesSyslog
linux-devel-x86_64OK162
source / vignettesOK253
linux-release-x86_64OK145
macos-release-arm64OK103
macos-oldrel-arm64OK82
windows-develOK93
windows-releaseOK110
windows-oldrelOK95
wasm-releaseOK128

Exports:ef_brazil_cetesbef_europe_emepef_scaled_euroef_usa_emfacef_usa_movesemi_europe_emep_wearemis_gridemis_summaryemis_to_dtemission_modelslope_class_europe_emeptransport_model

Dependencies:askpassbackportscheckmateclassclassIntclicodetoolscpp11curldata.tableDBIdigeste1071fsfurrrfuturegeometriesglobalsgluegtfs2gpsgtfsiogtfstoolshttr2jsonliteKernSmoothlifecyclelistenvlwgeommagrittrMASSopensslparallellyprocessxprogressrproxypspurrrR6rappdirsRcpprlangs2sfsfheaderssysterraunitsvctrswithrwkzip

Preparing fleet data for gtfs2emis
1. Introduction | 2. Simple or detailed fleet data table | Example of simple fleet table | Example of detailed fleet table | 3. Fleet characteristics vary by emission factor model | 4. Examples of fleet data tables | 4.1 Brazil: Environmental Company of Sao Paulo (CETESB): | 4.2 Europe: EMEP - European Environment Agency (EEA) | 4.3 United States: EMFAC2017 - California Air Resources Board (CARB) | 4.4 United States: MOVES3 - Environmental Protection Agency (EPA) | Learn more | Report a bug
Rendered fromgtfs2emis_fleet_data.Rmdusingknitr::rmarkdown

Last update: 2026-02-12
Started: 2022-06-16

Exploring Emission Factors
Available emission factor models | Visualizing emission factor data | Scaling Emission Factors: making emission factors speed-dependent | Checking gtfs2emis imported data | Learn more | Report a bug
Rendered fromgtfs2emis_emission_factor.Rmdusingknitr::rmarkdown

Last update: 2024-12-02
Started: 2022-08-07

Exploring Non-Exhaust Emission Factors
Tire | Brake | Road Wear | Viewing Emissions | a) Preparing the data | b) Creating spatial grid | c) Generating spatial and temporal patterns | References | Report a bug
Rendered fromgtfs2emis_non_exhaust_ef.Rmdusingknitr::rmarkdown

Last update: 2024-10-10
Started: 2023-09-01

Getting started
1. Introduction | 2. Installation | 3. Data requirements | 4. Package Overview | 5. Demonstration of sample data | 5.1 Transport model | 5.2 Fleet data | 5.3 Emission model | 6 Analyzing emission estimates | 6.1 Total emissions by pollutant | 6.2 Total emissions by vehicle type | 6.3 Total emissions by time of the day | 6.4 Spatial distribution of emissions | Learn more | Report a bug
Rendered fromgtfs2emis_intro_vignette.Rmdusingknitr::rmarkdown

Last update: 2023-09-01
Started: 2022-04-29