Looking at Seamer, the minimum connection time is 5 minutes, a connection for a journey will thus be generated if this is met, tickets printed out showing this as 'your connection'. Seamer is an easy cross platform connection, but once off the train, you have very limited facilities, a basic unheated waiting shelter, real time information, but no toilet, no shops near by, and no staff. I feel sorry for anyone stuck there for an hour.
Like any line that serves a seaside coast, it is used by many passengers unfamiliar with the local train services or facilities. These are often people with young children, the elderly, and often with luggage. Coastal towns need all the trade they can get, they are often the ones in most need of 'levelling up' Happy holiday makers are likely to come back, and support the local economy.
Unfortunately, travelling from the Hull line to connect with trains going towards York, the arrival/departure time is mostly 5 minutes, (though some, strangely, have no connection as the Northern Train is due to arrive with just 4 minutes to the next TPE service.)
The TPE service used to be a long distance Trans Pennine Service, most trains going to and from Liverpool, with all the network pinch points that entails, so fully understandable that a train cannot wait even 30 seconds longer. But for a couple of years now, most Scarborough trains only go to York.
While the new May 2022 timetable is not in the journey planner, real time trains data for June 2022 Monday to Saturday currently is not showing this changing.
One benefit of TPE only running a York-Scarborough shuttle could be a it gives those who are in charge, these days mostly the Department for Transport? the option to empower staff on both services with permission to wait and work together, if they can see that both trains are going to be in Seamer station at the same time. This would be good for everyone's health and well being.
For most passengers if they see the TPE train they will aim to cross the platform to board it. Make it, they are grateful, they will thank the staff. If it leaves, especially with young family or an elderly couple left facing a shut door, it causes distress for those on the platform and those of a caring nature on the train.
The problem at the moment is the random nature of Seamer regarding connections. I feel sorry for the staff of both companies, it is not easy to even do a PA announcement about if you should say on the train, or get off.
The case raised was the Northern train had arrived from Hull, it was timed for the minimum connection time, it was 4 minutes late as show on real time train. So the trains are both in the station, side by side with just a thin platform between them. Passengers got off, and within that 30 seconds, both trains would have left, and they would then have an hours wait.
What would make the connection more passenger friendly is for the long awaited York- Scarborough shuttle train to be introduced, to provide a service every 30 minutes. Now that would be a game changer.
In the interim, a clear policy for Seamer and onward connections, would help all concerned.