A new report by the Oregon Transportation Research and Education Consortium (OTREC) evaluates the bike boxes recently installed throughout the City of Portland.  The reportpresents a before-after study of bike boxes at 10 signalized intersections in Portland, Oregon. The bike boxes -- also known as advanced stop lines or advanced stop boxes -- were installed to increase visibility of cyclists and reduce conflicts between motor vehicle and cyclists, particularly in potential “right-hook” situations.  In the study, before-and-after videos were analyzed for seven intersections with green bike boxes, three intersections with uncolored bike boxes, and two control intersections.  In addition, user perceptions were measured through surveys of cyclists passing through five of the bike box intersections and of motorists working in areas where the boxes were installed.   The study concludes -- in answer to the question, “Do the bike boxes improve safety?” -- that, “after controlling for volumes, the number of conflicts decreased and yielding behavior increased.  In addition, user perceptions of safety improved.”