Switching Trajectories in the Rhine Delta by Matanya Sack and Liesl Vanautgaerden. On 15 September the American Society of Landscape Architects (ASLA) announced the winners of the 2009 Student Awards. Among them ranks Switching Trajectories in the Rhine Delta. Faculty advisors: Christophe Girot, professor for landscape architecture, ETH Zurich and Sebastien Marot, guest professor for landscape architecture, ETH Zurich.