Work

I’ve had an interesting work life; I’ve done enough different things that I told my students that I follow the Brownian Motion Theory of Career Development.

Diagrammatic Guide Signs

Several years after the final report, there was a study of accidents and fatalities at the changed interchanges. These found a 20% reduction in both at the recommended locations for diagrammatic signs: left exits from Interstate highways. Overall, this was an unusual research project because it encompassed multiple sign testing methods ranging from the laboratory, through instrumented cars, on-highway, and before/after accident and fatality records. While my part was small, it provided a standard that I have remembered.

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