A PD&E Study determines if there is an engineering and environmentally feasible alternative to meet the future needs determined in the planning phase. This involves the preparation of preliminary engineering and environmental documentation.
Key components of a PD&E Study include an evaluation of existing conditions, identification of future traffic needs, development and evaluation of project alternatives, and public and agency involvement. All findings and recommendations are documented at the end of the study. Subsequent phases include final design and engineering, right-of-way acquisition, and construction. The subsequent phases are currently not funded but will be considered for funding upon the completion of the PD&E Study.