How does model analysis compare to cost benefit analysisregarding transportation

How does model analysis compare to cost benefit analysisregarding transportation planning? What political elements areinvolved with transportation planning for cities? Would yourecommend a single method of analysis or a combination of methodsof analysis for transportation planning? Why? Lastly discuss thenature of allocating funds derived from the public budget. Why isthere considered to be a lack of consensus regarding the publicbudgeting process? Respond to at least two of your classmatespostings.