Fragile plans break down over time. These plans don’t anticipate how technology could change travel and urban life. Fragile plans extrapolate a continuation of past trends rather than a projection of future changes. Over time, a fragile plan’s guidance becomes less useful, and it is retired to the shelf.
Agile plans consider many future scenarios, including those that differ substantially from historic trends. Agile plans are resilient and adaptive. An agile plan continues to guide a planning organization’s learning over time, building in decision points for future actions.