Twenty-one years after the passage of the federal City Statute (Estatuto da Cidade)—which regulated the “Urban Policy” chapter of the Brazilian Constitution, leading to the formulation of several master plans for 21st-century cities with more than 20,000 inhabitants and, now, the opportunity to revise many of them—it seems timely to tune our radars to a highly relevant topic for all cities, and one we have consistently struggled to address: our sidewalks!

I am referring to various aspects of their use and purpose, their regulatory mechanisms, their maintenance, and their design... Let us look at them.