A problem statement describes an idea for future research, and is presented to the ADOT Research Advisory Committee for consideration of funding. It briefly states the existing problems to be addressed and the objectives that would be met by the requested research. It does not prescribe a methodology, include a scope of work, or call for the use of specific products or providers. In general, a problem statement raises questions that would be answered by the suggested research, but does not presume to know the answers.
A scope of work is a set of objectives-based tasks included in the solicitation for consultants to conduct a research study. Scopes of work, in most cases, do not prescribe a specific methodology. Prospective consultants are asked to develop a methodology to meet the objectives stated in the scope of work.
A proposal is submitted by a potential consultant in response to a solicitation for a specific research study. The contractor proposes a work plan, budget, and schedule with the intent of meeting the stated scope of work. Consultants for research studies are selected based on submitted proposals.