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Calculate Scheduled Speeds

Source: R/get_speeds.R
get_speeds.Rd

Combines distance in meters and duration in seconds to calculate kilometers per hour.

Usage

get_speeds(gtfs, method = "by_trip", trips = "all")

Arguments

gtfs

A GTFS object.

method

One of `"by_trip"`, `"by_route"`, or `"detailed"`. Legacy dotted values remain accepted.

trips

Character trip IDs or `"all"`.

Value

A tibble with `average.speed` for route and trip methods, or segment-level `speed` for the detailed method. `direction_id` is retained when available.

Details

Detailed distances are straight-line geodesic distances between stops. Route and trip distances follow `shapes.txt`, or inferred straight-line shapes if the feed has none.

See also

[GTFSwizard::get_distances()], [GTFSwizard::get_durations()]

Examples

get_speeds(for_rail_gtfs, "by_route")
#> # A tibble: 6 × 6
#>   route_id direction_id trips average.speed service_pattern  pattern_frequency
#>   <chr>           <int> <int>         <dbl> <chr>                        <int>
#> 1 6                   0    63          38.3 servicepattern-1               614
#> 2 6                   1    64          38.3 servicepattern-1               614
#> 3 7                   0    15          26.3 servicepattern-1               614
#> 4 7                   1    15          25.7 servicepattern-1               614
#> 5 8                   0    29          21.9 servicepattern-1               614
#> 6 8                   1    29          21.9 servicepattern-1               614
get_speeds(for_rail_gtfs, "by_trip")
#> # A tibble: 215 × 6
#>    route_id trip_id direction_id average.speed service_pattern pattern_frequency
#>    <chr>    <chr>          <int>         <dbl> <chr>                       <int>
#>  1 7        10                 0          26.3 servicepattern…               614
#>  2 6        100                1          38.3 servicepattern…               614
#>  3 6        101                1          38.3 servicepattern…               614
#>  4 6        102                1          38.3 servicepattern…               614
#>  5 6        103                1          38.3 servicepattern…               614
#>  6 6        104                1          38.3 servicepattern…               614
#>  7 6        105                1          38.3 servicepattern…               614
#>  8 6        106                1          38.3 servicepattern…               614
#>  9 6        107                1          38.3 servicepattern…               614
#> 10 6        108                1          38.3 servicepattern…               614
#> # ℹ 205 more rows