This document discusses transport-oriented design and sustainability. It notes that transportation accounts for 25% of the world's energy consumption and carbon emissions. As transport emissions increase faster than any other sector, there is a need to address traffic congestion, pollution, and other negative impacts through better transportation and city planning. The document explores how transportation infrastructure relates to urban growth and architecture, and examines conceptual designs for more sustainable transportation systems and city layouts that integrate different transportation modes and reduce congestion.