Ann Arbor is actively engaged in traffic calming programs.  However, improving sight distance is the most cost effective action a municipality can take to improve traffic safety, per the manual: Roadway Safety and Tort Liability, second edition, 2004, pg 171-172:

The need for adequate sight distance at intersections cannot be stressed enough.  Constance vigilance to prevent man-made objects from being place and vegetation from growing in the necessary sight triangles will probably do more for traffic safety at the lowest cost than most other measures.