deletions | additions       diff --git a/Results TTC.tex b/Results TTC.tex  index 8057387..807e421 100644  --- a/Results TTC.tex  +++ b/Results TTC.tex 
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\subsubsection{Mean Speed Aggregated}  A simple aggregated mean speed regression across the 37 sites is explored first. Including dummy variables from land use categories, over 20 variables are available for modelling. With only 37 sites, this leaves very little room for degrees of freedom. While a handful of factors individually contribute significantly to explaining mean speed, only two to three can be used simultaneously before the model significance starts to erode. TABLE lists the coefficients and p-values for three factors which stand out: commercial and institutional land uses as well as number of exit lanes off the roundabout [Any Comment????]  are found to have a traffic calming effect on an average speed of 42 km/h for vehicles travelling through the weaving zone by 5 to 10 km/h. Unsurprisingly, speed limits are also correlated with speed, though they are covariant with many built environment factors so are ignored. The R-squared for this model is 0.2766, which offers only modest explanatory power. To improve results, site clustering and random effects regression is performed next. \begin{verbatim}  regress mean_speed lu2 lu6 n_exit_lanes