Separate analysis to look at `drop_off_type` and `pickup_type`

[matikin9]

Let's look at drop_off_type and pickup_type (GTFS reference).

show stop to riders	drop_off_type	pickup_type	meaning
yes	0 or empty	0 or empty	riders can be picked up and dropped off at this stop
yes, but indicate drop-off only	0 or empty	1	riders can be dropped off but NOT picked up at this stop
yes, but indicate pickup only	1	0 or empty	riders can be picked up but NOT dropped off at this stop
no	1	1	riders can NOT be picked up or dropped off at this stop

We don't know how many stops in our trips fall into these categories, or whether this may affect shape variations.

[albertkun]

Rider Code

rider usage	rider usage code	drop_off_type	pickup_type	meaning
yes	1	0 or empty	0 or empty	riders can be picked up and dropped off at this stop
yes, but indicate pickup only	2	1	0 or empty	riders can be picked up but NOT dropped off at this stop
yes, but indicate drop-off only	3	0 or empty	1	riders can be dropped off but NOT picked up at this stop
no	0	1	1	riders can NOT be picked up or dropped off at this stop

Here is the data for the drop_off_type and pickup_type where the values are not 1

rider_usage_code_not_1.csv

Data preview

trip_id	route_id	direction_id	shape_id	stop_id	stop_sequence	route_code	pickup_type	drop_off_type	stop_name	rider_usage_code
10150001982423-JUNE23	150-13168	0	1500198_JUNE23	5505	1	150	1	1	Rocketdyne Layover	0
60232000941341-JUNE23	232-13168	1	2320094_JUNE23	23200005	8	232	1	0	Mariposa Station - Discharge Only	2