% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/data.R
\docType{data}
\name{london_collisions}
\alias{london_collisions}
\title{London Road Collisions (2022)}
\format{
A data.frame in long format with columns:
\describe{
  \item{region_id}{Integer identifier of the borough.}
  \item{borough}{Borough name.}
  \item{population}{Total collisions in the borough (used as population
    denominator).}
  \item{x}{Longitude of the borough centroid.}
  \item{y}{Latitude of the borough centroid.}
  \item{node_id}{Character leaf identifier from \code{\link{london_tree}}.}
  \item{cases}{Integer count of collisions.}
}
}
\source{
UK Department for Transport, STATS19 data via the \code{stats19} R package.
}
\usage{
london_collisions
}
\description{
Combined long-format dataset of road traffic collisions in the 33 London
boroughs, 2022. Each row represents a (borough, collision-category)
combination with at least one collision. Use together with
\code{\link{london_tree}}.
}
\examples{
data(london_collisions)
head(london_collisions)
cat("Total collisions:", sum(london_collisions$cases), "\n")
}
\seealso{
\code{\link{london_tree}}, \code{\link{london_boroughs_map}}
}
\keyword{datasets}
