The article discusses how public transport planning and land use planning should be integrated in urban regions. The researchers examined different land use planning systems and zoning procedures to see how public transport is considered in city planning. They interviewed officials from cities like Lahti and Hameenlinna to understand how public transport can be better incorporated into planning processes. The study suggests that public transport should be connected to land use planning to improve urban structure and support public transport. The goal is to develop an operating model that emphasizes the roles of different parties in the planning process and ensures that public transport is considered early on in city development.