Improvement Categories and Subcategories.
Under the HSIP MAP-21 reporting guidance, each project should be assigned a general improvement category and a subcategory under that general category. While a single project may consist of multiple project types, FHWA suggests States to assign each project to only one category. The category chosen should align with the primary purpose of the project. Figure 11 and Figure 12 show the distribution of the number of projects by general improvement category. Figure 13 and Figure 14 combined show the distribution of the total cost of projects by general improvement category.