One pedestrian safety countermeasure, which has proven effective elsewhere, wasn’t mentioned in the article: traffic calming. That is the installation of engineering measures that force traffic to slow down as it goes around traffic circles, goes over raised intersections or squeezes between a center line and curb extensions.
Some of the nation’s most livable and walkable cities have traffic calming programs. Think Seattle, Portland and Austin. Salt Lake City had a very active program until 2003, when the traffic calming program was discontinued due to various social and political issues, mainly related to emergency vehicle response times.