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, fi ^ <br />H <br />. <br />i it <br />i • <br />1 r <br />i. <br />Using an assumed peak hour percentage of 12 percent, the existing daily volume of 3500 VPD <br />and a directional split of 60/40, the peak hour flow on Femdale Road is 250 in the major <br />direction and 170 in the off-peak direction. The future volume projection of 5000 VPD <br />translates to a peak hour flow of 360 in the peak direction and 240 in the off-peak direction. <br />Considering the left turn lane warrants contained in the State of Minnesota Road Design <br />Manual for rural intersections of roadways with a 70 km/h (43 mph) design speed (the <br />minimum speed u.scd in the manual), none of the intersections along Femdale Road warrant a <br />left turn lane. These warrants are based on the volume estimates. If peak hour left turns <br />increa.sed to 50 or greater for any of the intersections, a left turn lane would be warranted at that <br />location ba.sed on the State of Minnesota Road Design Manual, <br />There are advantages to left turn lanes that need to be stated. The primary benefits are safety <br />oriented. The left turn lane allows for left turning vehicles to move from the through lane thus <br />decreasing the potential for rear end accidents. A left turning vehicle in a left turn lane <br />decreases the delay to through traffic and the intersection capacity is increased. A 1976 traffic <br />analysis of North Femdale Road conducted by Barton-Aschman As.sociates recommended that <br />left turn lanes be constructed at 6*^ Avenue North, Chevy Chase Drive and the north and south <br />legs of Brockton Lane North. <br />Street Width Potions <br />Three width options for the reconstmetion of Femdale Road are presented in this report. <br />The proposed street width options for Femdale Road are as follows; <br />• 8.4 meters (28 feet) with turn lanes, <br />• 9.8 meters (32 feet) with no turn lanes <br />• 8.4 meters (28 feet) with no turn lanes <br />Typical sections and striping layouts for all three options are shown on Figures 3 through 8 <br />in this report. A summary of the advantages and disadvantages for the three options is <br />presented below. <br />Option 1:8.4 meters (28 feet) face to face wh^re no turn lanes are present <br />II meters (36 feet) face to face where turn lanes are present <br />Advantages: <br />m <br /># <br />m <br />m <br />Provides landscaped traffic islands <br />Provides room for turn lanes, improving safety <br />Decreases delays to through traffic <br />Turn lanes will increase roadway capacity <br />1 I Plymouth Feasibility Report - Femdale Road Reconstmetion