Practical Implications
While Solomon’s research focused on speed deviation, and not speed per se, some commentators have cited Solomon’s research to support the conclusion that raw speed and crash risk are not directly related. On the other hand, while recognizing Solomon's research reveals the importance to safety of variability around average speed, Leonard Evans concludes in Traffic Safety and the Driver that control of absolute driver speed, and not variability, should be the primary focus of traffic safety regulation. Both views support the fact that the seminal research underlying the Solomon curve shows that the greater the difference between a driver’s speed and the average speed of traffic—both above and below that average speed—the greater the likelihood of involvement in a crash. Consequently, many states and safety organizations advise drivers to “drive with the flow of traffic”.
Read more about this topic: Solomon Curve
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