Paul St-Aubin edited Methodology Complementary Data.tex  about 9 years ago

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\subsection{Complementary Data}  With the exception of speed and aggregated traffic volume counts, vehicle trajectories offer little insight without context. Complementary data about the scene is collected and added in order to perform further analysis. This data includes a wide variety ofscene descriptors and  design geometry and environment  attributes characterizing the factors under study. \subsubsection{Analysis Area} 

\begin{itemize}  \item \textbf{Geometric characteristics} including lane width, curvature, approach angles, and number of lanes, presence of slip lanes and/or lane configuration;  \item Presence of \textbf{horizontal and vertical signalization}: if proper placement is under evaluation, location may be recorded, or a typology of signage quality may be used instead;  \item \textbf{Pedestrian facilities}; facilities} such as crosswalks, pedestrian refuges, etc.;  \item \textbf{Built environment}: school zones, land usage, clearance;  \item \textbf{Upstream/downstream distances to features} such as intersections, speed limit changes, rail-road crossings, etc.  \end{itemize}