The objective of this research is development of a Practitioners Handbook for the Noise Analysis Process for Design Build Projects. The completed handbook will provide state highway agency staff and supporting consultants with a streamlined process flow including QA/QC information necessary to satisfy regulatory requirements for design build projects, including: • Addressing existing noise mitigation and new mitigation that is recommended at the beginning of the project or because to design changes • Triggers, methods, and reporting requirements for noise analysis and mitigation • Triggers for DOT involvement (e.g., inspections, reviews) • Minimum mitigation construction requirements (e.g., no gaps within or between the wall, no gaps between bottom of wall and finished grade) • Template or minimum requirements for Environmental Compliance Work Plan (i.e., contractor document submitted to DOT to explain how contractor will comply with DOT contract requirements) • DOT needs/perspective versus contractor needs/perspective • Providing solutions to issues from prior design build projects (e.g., project phasing, construction noise, submittals, construction issues, and noise analysis reevaluations) In order to develop the handbook development, research shall be conducted nationwide and internationally. DOTs will be contacted to obtain tools that have already been developed by states (e.g., design build handbooks, contract templates) and to learn what types of issues have come up in prior design build projects. Once the handbook has been developed, a training presentation will be provided via a webinar.