Creating, Exploring and Manipulating 'GTFS' Files R package GTFSwizard version 1.2.0 Creating, exploring, analyzing, and manipulating General Transit Feed Specification (GTFS) files, which represent public transportation schedules and geographic data. The package allows users to filter data by routes, trips, stops, service dates, and time, generate spatial visualizations, and perform detailed analyses of transit networks, including headway, dwell times, route frequencies, service span, scheduled vehicle-hours, and trip duration. Methods follow common public transport planning and operation concepts described in Ceder (2007, ISBN:978-0-7506-6166-6), Vuchic (2005, ISBN:978-0-471-63265-8), and Vuchic (2007, ISBN:978-0-471-75823-5). Software Depends: R (>= 4.1.0) Imports: sf, tidyr, checkmate, dplyr, ggplot2, gtfsio, rlang, tibble Suggests: data.table, gtfstools, hms, leaflet, shiny, testthat, tidytransit Nelson de Oliveira Quesado Filho <nquesado@gmail.com> Comprehensive R Archive Network (CRAN) Nelson de Oliveira Quesado Filho [aut, cre], Caio Gustavo Coelho Guimarães [aut], Francisco Moraes de Oliveira Neto [aut] GPL-3 2026-06-22 application/tgz https://CRAN.R-project.org/package=GTFSwizard doi:10.32614/CRAN.package.GTFSwizard