Sectorial planning is a strategic approach that focuses planning on specific sectors of an economy or community. It involves defining key sectors, assessing the current state and desired outcomes of each sector, and developing strategies and budgets to achieve sector goals. The private sector, local groups, and other stakeholders are involved to promote coordination, efficient resource use, and sustainable development. While this approach allows for more detailed sector-level planning, it may face challenges involving public participation and economic assessment in complex cities.