This is very sad and unfortunate. A promising prospect of high speed rail in dense city streets can turn deadly on a dime, without warning or expectation. As planners, architects, engineers and civic stakeholders consider and develop smart urban design solutions, safety must be top-of-mind. How individuals behave becomes of utmost importance. The human element, the predictability of peoples’ behavior, for better or worse, must not become a casualty as more powerful technology solutions barrel through our city streets. Conceptual theory yielding ultra-optimist positions must be tempered with a thorough questioning of possible and highly improbably scenarios that cannot be predicted.