R/L.R

In cartools: Tools for Understanding Highway Performance

#'  \code{L} is a matrix containing information about the lead vehicle. The bottleneck is located at \code{x = 0}.
#'
#' @format A matrix of 4 columns and 4 rows where the first through fourth rows contain
#' time \code{t}, speed \code{u}, location \code{x} and safe headway \code{h} information:
#' \describe{
#' \item{t0}{time when a lead vehicle begins to decelerate.}
#' \item{t1}{\code{NA} for a lead vehicle.}
#' \item{t2}{\code{NA} for a lead vehicle.}
#' \item{t3}{time when the lead vehicle reaches a breakdown speed.}
#' \item{u0}{lead vehicle speed at \code{t0}.}
#' \item{u1}{\code{NA} for a lead vehicle.}
#' \item{u2}{\code{NA} for a lead vehicle.}
#' \item{u3}{lead vehicle breakdown speed.}
#' \item{x0}{lead vehicle location at \code{t0}.}
#' \item{x1}{\code{NA} for a lead vehicle.}
#' \item{x2}{\code{NA} for a lead vehicle.}
#' \item{x3}{lead vehicle location at \code{t3}.}
#' \item{h0}{safe headway at \code{t0}.}
#' \item{h1}{\code{NA} for a lead vehicle.}
#' \item{h2}{\code{NA} for a lead vehicle.}
#' \item{h3}{safe headway at \code{t3}.}
#' }
"L"