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\begin{frame}{Structure and use of human activity spaces}

\begin{columns}

\column{0.5\textwidth}

\begin{itemize}

\item Use of GPS-based data to address three fundamental behavioural questions: (i) size, structure and orientation of the individual activity spaces, (ii) frequency and amplitude of the rythms of visits to different locations, including their competition and (iii) form of the rules of route choice behaviour

\item Sponsor: Ecole Polytechnique F\'ed\'erale de Lausanne

\item S\'ebastien Naizot, ROSO, EPFL

\item Prof. K. W. Axhausen, IVT, ETHZ

\item June 01, 2003-May 31, 2004

\end{itemize}

\column{0.5\textwidth}

\begin{center}

\epsfig{figure=ACTIVITYSPACES.ps,width=\textwidth}

\end{center}

\end{columns}

\end{frame}