摘要: |
Each year, Tennessee invests millions of dollars to design, construct, rehabilitate, and improve the state’s transportation infrastructure. The efficiency of these investments has resulted in exemplary system performance even while the required state resources have remained relatively small. Continued population growth and commercial developments, combined with scarce fiscal resources, require constant vigilance and precision in allocating always-scarce funds. Accordingly, the state is constantly seeking better ways to evaluate the potential benefits of future transportation expenditures. Calculating and interpreting geographically-specific returns-on-investment (ROI), is important to examine infrastructure investments to examine positive returns.
Public sector transportation investments are generally made to facilitate or accommodate economic growth, while simultaneously assuring public safety, environmental stewardship, and social equity. This mix of goals means that calculating and interpreting transportation ROIs in Tennessee would necessarily require developing and analyzing ROI measures that reflect Tennessee-specific values.
The proposed research has three objectives. These include:
Study of the best practices developed by other state DOTs and the existing academic literature to (i) design a set of ROIs that reflect Tennessee values and objectives and (ii) identify factors affecting ROI;
The empirical estimation of post project versus pre-project ROIs at the county level in Tennessee that capture various private sector returns attributable to transportation investments made during the past decade; and
An analysis of the estimation results aimed at identifying the demographic, economic, and environmental factors associated with both well-performing and poorly-performing transportation infrastructure investments. |