banner of Methodology for Determining Motorcycle Operator Crash Risk and Alcohol Impairment

4. Research Priorities

Lowest Priority Methodologies

Lowest-Cost Category


Medium-Cost Category

Survey Study

Survey research (other than roadside surveys with BAC testing) was generally considered to be a poor way to gain an understanding of the effects of alcohol on motorcycle operation. The costs would be relatively high while the quality of data to be gained would be suspect because it would depend upon self-reports.

Highest-Cost Category

Geo-General + Fatal Crash Records

This methodology would generate relative risk curves from FARS crash data, and comparison data collected through the use of roadside surveys. This methodology does hold some promise for generating reasonably accurate relative-risk curves (see Zador, 2000), but has been placed at a low priority because it is not likely to produce as scientifically valid results as the other methodologies in this cost category. If it can be determined that this type of study could be conducted for significantly less funding than other studies in this cost category, this methodology could be considered a medium- or high-priority methodology.

Cohort Study

As was mentioned previously, the cohort study, while being highly valid scientifically, is considered too expensive and would take too long to be practical, and is therefore assigned a low priority.