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Notes:: <br />Sight Distance Calculations: <br />Stopping sight distance (SSD),, ft=1,47St+1.075S2/a <br />Pedestrian sight distance (PedS61, ft=1,475(L J S +tf� <br />where: S= design speed, mph <br />L = length of crossing, ft <br />Uncontrolled Pedestrian Crosstn <br />Data Collection Worksheet <br />where: <br />t = brake median time, s <br />a = deceleration rate, ft/sa <br />SN = average pedestrian walking speed, R/s <br />y= pedestrian start-up and end clearance time, s <br />de€auk; <br />2.5 <br />11,2 <br />3.5 <br />3,€3 <br />