Different transportation planners use different criteria to suggest or to propose a public bus route for one city.
There are different considerable factors to be used as a reference to propose such projects such as Traffic volume, future population dynamics, decision-maker's point of view, land use characteristics and other demographic characteristics may be used as a reference to propose a public bus route system for one Metropolitan city.
And, To consider the whole things in one case, it needs special, long preliminary investigations and careful attention.
I know that there are a bunch of planning concepts from different literature, But, i need a clear image on what were the necessary and obligatory planning criteria that must be considered in proposing public bus routes for one developing countries?
Any help is appreciated. It is open for learning-teaching discussion.