will generally be equal to the difference in the total 

 transportation costs with and without the project, 

 the assumptions stated for the without-project con- 

 dition are used to establish the with-project condi- 

 tion for each alternative. 



(2) Management practices that are sometimes 

 within the discretion of a public entity and are 

 therefore subject to change in the with condition in- 

 clude traffic management, pilotage regulations, ad- 

 dition of berths, and additions or modifications to 

 terminal facilities. 



(c) Display. In the planning report, present the 

 derivation and selection of with- and without-project 

 conditions in accordance with the following guide- 

 lines: 



(1) State the assumptions specific to the study. 



(2) Specify the significant technical, economic, 

 environmental, social, and other elements of the 

 planning setting to be projected over the period of 



analysis. Discuss the rationale for selecting these 

 elements. 



(3) Present the with and without project condi- 

 tions in appropriate tabular and graphic displays 

 with respect to the elements selected as in para- 

 graph (c)(2) of this section and as exemplified by 

 Tables 2.7.6-1, -4, and -5. 



2.7.4 Evaluation procedures. 



Use the following steps to estimate navigation 

 benefits. The level of effort expended on each step 

 depends upon the nature of the proposed improve- 

 ment, the state-of-the-art for accurately refining the 

 estimate, and the sensitivity of project formulation 

 and evaluation to further refinement. A flowchart of 

 navigation evaluation procedures is shown in Figure 

 2.7.4. 



60 



