An example of good information provision is shown in Figure 3, a notice
on the platform of Tokyo station used by the airport train. It is clear
and avoids travellers who are probably stressed being worried when the
coach for their reserved seat does not come in initially.

Factors that seem to be essential for accessibility is for the operator
to prioritise passenger convenience above other issues, and to try to
see the passenger's journey from the point of view of the passenger.