The new rule, which applies to all public roads except interstate freeways, adds many new factors into the decision-making process. When setting speeds, engineers will now have statutory guidance to consider dense urban contexts, presence of foot and bicycle traffic, demographics of road users, crash rate, public input, and other new factors. The adopted rule also introduces a fiftieth percentile rule along with new functional street classifications such as "urban mix," "urban core," and "suburban fringe" that allow engineers to further tune their analysis. It has also codified a list of recommended speeds for those new classifications. https://bit.ly/3cVKMG8