Traffic Control

Portland (Or.). Neighborhood Traffic Management Program Kittelson & Associates 2010-04-19T20:21:48Z 2010-04-19T20:21:48Z 1991-10 http://hdl.handle.net/1794/10312 98 p. Illustrations en_US Kittelson & Associates Traffic circles -- Oregon -- Portland -- Evaluation Roundabouts (Traffic circles) Speed limits -- Oregon -- Portland -- Evaluation Motor vehicles -- Speed -- Management Automobiles -- Speed -- Management Traffic accidents -- Oregon -- Portland -- Prevention -- Safety measures -- Evaluation Traffic safety -- Oregon -- Portland -- Safety measures -- Evaluation Peer review analysis of the traffic circle program, Portland, Oregon Other