Paul St-Aubin edited Methodology Geo.tex  almost 10 years ago

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\subsubsection{Geometric Design Factors}  Table~\ref{tab:geo_fac} lists the most important and least collinear geometric factors under study. This includes lane number and arrangement at the start and end of the roundabout, lane number and arrangement at the approach and exit, inside and outside radii, size of the quadrant measured as an angle (typically affected by the number of branches), and upstream intersection distance. Note that the posted speed limit is the legal speed limit, not the recommended roundabout speed. The measurement criteria can be seen in Figure~\ref{fig:roundabout-geo-fac}  \begin{table}  \caption{Geometric Design Factors} 

\textbf{app\_speed\_limit} & Upstream posted speed limit & Continuous & 30 & 59.02 & 90 & km/h \\  \hline  \end{tabular}  \end{table}  \subsubsection{Built Environment Factors}  \begin{table}  \caption{Built Environment Factors: Network Class & Land Use}  \label{tab:be_fac}  \hline  \begin{tabular}{lll}  \textbf{Variable} & \textbf{Description} & \textbf{Count} \\  \hline  \textbf{\_constant} & Private Road & 0 \\  \textbf{nc1} & Collector & 6 \\  \textbf{nc2} & Arterial & 20 \\  \textbf{nc3} & Regional Highway & 10 \\  \textbf{nc4} & Access Ramp & 5 \\  \hline  \textbf{\_constant} & None & 8 \\  \textbf{lu1} & Residential & 16 \\  \textbf{lu2} & Commercial & 1 \\  \textbf{lu3} & Industrial & 7 \\  \textbf{lu4} & Mixed & 5 \\  \textbf{lu5} & School & 0 \\  \textbf{lu6} & Institutional & 4 \\  \hline  \end{tabular}  \end{table}