there are three entities involved station railway and passengers railway has station nd attributes of railway are railway no. railway name railway type and railway seats and station attributes are...
You need to be more specific about what data you want to collect and why. And even then, the process of drawing an ER diagram is a lengthy process of trial and error.
An ER diagram is an "Entity Relationship" diagram, which illustrates the relationships between the entities in a data model.A data model for a timetable management system might have entities like...