Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Estimated odds ratios for taking rolling over aligned gap pairs for each age group as function of the far lane gap size. An odds ratio of 1 corresponds to equal odds of accepting aligned and rolling gap pairs; an odds ratio grater than 1 corresponds to preference for rolling gap pairs
