Measuring the Aggregate Productivity Benefits from ITS Applications: The California Experience

This research provides the first evidence of whether and how ITS contributes to economic growth and productivity – an objective established by the California Transportation Plan and ITS in particular. The next set of questions includes, what industries are most affected by ITS applications? Does it matter how many ITS applications are present, in other words, are there diminishing returns to similar ITS projects? Finally, does it matter how ITS projects are combined? This latter question also arose out of our research on production functions as well, and will be a central part of the subsequent research agenda.