R/h2.R

In PJOssenbruggen/Basic: Tools for Understanding Highway Performance

#' Space headway \code{h2} at time \code{t2}, the time the following vehicle driver sees the lead vehicle has decelerated.
#'
#' @format \code{h2} is the headway \code{hsafe(u2)} where \code{u2} is the lead vehicle speed at \code{t} = \code{t2}.
#' \describe{
#' \item{h2}{headway between lead and following vehicles, measured in feet.}
#' }
"h2"