States provide project specific information for all projects obligated with HSIP funds during the reporting period in their annual HSIP reports. The reporting period is defined by the State and can be calendar year, state fiscal year or federal fiscal year. For 2017, the States obligated $4.3B for 4,616 total projects. These obligations utilized funds apportioned during the 2017 fiscal year as well as HSIP funds available from previous years' apportionments.

As per the HSIP Reporting Guidance, project specific information may include:

• Improvement Category and Sub Category (see Appendix A for complete descriptions)
• Project output (e.g., miles of rumble strips)
• Method for site selection
• Project cost
• Funding category
• Relationship to the State's strategic highway safety plan (SHSP) (i.e. emphasis area, strategy)
• Roadway characteristics

The following sections present various summaries of the nationwide HSIP project obligations for the 2017 reporting cycle. It should be noted that limited analysis of the project information can be done because not all states have included all of the above information for each project in their annual HSIP reports. Full use of the HSIP online reporting tool and the most recent HSIP reporting guidance will enable more complete and accurate reporting of national HSIP project data. In addition, HSIP projects come in all shapes and sizes. For example, some HSIP projects may be much bigger in scope than others, countermeasure installations across multiple sites, or non-infrastructure projects (i.e. transportation safety planning, data improvements). Nonetheless, the summaries in the following sections provide a broad scale analysis of HSIP spending for the 2017 reporting cycle by project cost, functional classification and ownership, improvement categories and subcategories, and SHSP emphasis areas.