Some state DOT libraries have engaged in formal return-on-investment (ROI) exercises. MnDOT Library’s 2013 ROI study looked at tangible and intangible investments. Tangible values were calculated from time saved (quantified in staff salaries) from reference and document delivery services and dollars saved from interlibrary loans and journal routing. The study concluded that for every dollar spent on library staff and materials, $1.90 in benefits were returned. Intangible investments, such as knowledge gained, were estimated to be significant based on customer surveys.
While this exercise can quantify certain metrics and evaluate the costs and benefits of providing services, such a tool will not describe a library’s or program’s full value. Highlighting the intellectual capital of information professionals and the value to the agency, as recognized in a blog post, is a fundamental component of today’s transportation libraries.