National experience indicates it takes an average of 7 years to construct a new roadway from the time when the route location is selected. However, it is often difficult to identify the time frame for a new construction project.   The construction of a completely new roadway involves a number of complex and involved processes such as land appraisal and purchase, environmental assessments, soil conditions, economic impact concerns and local land use issues. Each of these must be carefully evaluated to assure that any adverse impacts are minimized and that those people and businesses that will be impacted by the project receive the proper assistance and advice. Additionally, litigations which include acquisition of right of way and condemnation proceedings often delay projects for years.