adjust_arrival_departure

Some GTFS.zip data have issues related to arrival and departure
time on stops. This function makes sure the GTFS has dis/embarking times at
each stop. For each stop time row, this function applies the following steps:
1. If there is `arrival_time` but no `departure_time`, it creates a departure_time 
column by summing the arrival plus a pre-defined `min_lag`.
2. If there is `departure_time` but no `arrival_time`, it creates an arrival_time 
column by subtracting a pre-defined `min_lag` from the departure.
3. If there is an `arrival_time` and a `departure_time` but their difference
is smaller than `min_lag`, it reduces the `arrival_time` and increases
`departure_time` so that the difference will be exactly `min_lag`.

Convert general transit feed specification (GTFS) data to global positioning system (GPS) records in 'data.table' format. It also has some functions to subset GTFS data in time and space and to convert both representations to simple feature format.

Pedro Andrade

gtfs2gps

Converting Transport Data from GTFS Format to GPS-Like Records

Rafael H. M. Pereira

Pedro R. Andrade

Joao Bazzo

Daniel Herszenhut

Marcin Stepniak

Marcus Saraiva

Ipea - Institue for Applied Economic Research 

adjust_arrival_departure function

<dl><dt>gtfs_data</dt>
<dd>A GTFS data created with <code>read_gtfs</code>.</dd>
<dt>min_lag</dt>
<dd>Numeric. Minimum waiting time when a vehicle arrives 
at a stop. It can be a numeric or a units value that can be converted
to seconds. Default is 20s.</dd></dl>

Arguments

Adjust the arrival and departure times of a GTFS data — adjust_arrival_departure

<dl>

<dt>gtfs_data</dt>
<dd>A GTFS data created with <code>read_gtfs</code>.</dd>


<dt>min_lag</dt>
<dd>Numeric. Minimum waiting time when a vehicle arrives 
at a stop. It can be a numeric or a units value that can be converted
to seconds. Default is 20s.</dd>

</dl>

adjust_arrival_departure: Adjust the arrival and departure times of a GTFS data

Description

Usage

Value

Arguments

Examples