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Appendix E <br />Explanation of Street Classification Numerical Ratings <br />Average Daily Traffic (ADT): Streets were given ratings based on the ADT of the section in <br />question. The higher the ADT, the higher the rating. If the street was long enough to have <br />several different measured volumes for different segments, an average over the entire section was <br />used. For reliability, present-day traffic volume was used, except for new streets not yet built or <br />segments of roadway that are undergoing rapid growth. In these cases an estimate of future <br />volume was used. <br />Points given for Average Daily Traffic: <br />Up to 1,500 vehicles per day 0 points <br />1,500 to 2,500 1 point <br />2,500 to 7,500 2 points <br />7,500 to 20,000 3 points <br />over 20,000 4 points <br />Alternative Modes: The rating for this criterion was based on the number of modes (sidewalks <br />for pedestrians, bicycle lanes or routes, and transit) present on that section of street. The more <br />modes, the higher the rating. For this criterion, both existing and planned facilities or transit <br />routes were considered. <br />Points given for Alternative Modes: <br />no alternative mode 1 point <br />1 alternative mode 2 points <br />2 alternative modes 3 points <br />3 alternative modes 4 points <br />(Note: For Eugene's streets these three modes--pedestrian, bicycle, and bus transit--are the <br />relevant non-auto modes for street classification purposes. Because there aze only three modes, <br />the rating system only spans a range of four points. Since the other criteria have a range of five. <br />points for each street segment, the range for Alternative Modes was set at a minimum of 1 point, <br />'~ maximum of 4 points, so that Alternative Modes would not be weighted less than other criteria.) <br />Length: The length of the street was measured and the longest streets were given the highest <br />points and the shortest streets were given the least number of points. The ranges used to group <br />streets into rating categories aze based on American Association of State Highway and <br />Transportation Officials (AASHTO) standards of mileage distribution of urban street and <br />roadway systems, adjusted somewhat to fit the size and scale of Eugene. <br />