Time (sec) Visual Analysis of Interval Changes Based on Calculations Red Clearance Interval R (sec) Photo taken after TV (sec) Yellow Interval Y (sec) 8.00 6.90 6.72 6.83 7.00 6.55 6.36 6.35 6.34 6.15 6.00 5.76 5.79 5.92 6.00 5.24 5.24 5.24 5.37 5.19 5.19 4.82 4.82 5.00 4.31 4.09 3.72 3.72 3.72 5.19 4.82 4.09 3.72 4.82 4.09 3.72 4.00 3.00 2.00 1.02 1.02 0.78 1.00 0.44 0.31 1.57 1.12 0.83 0.67 2.13 1.75 1.22 1.03 2.68 2.24 1.62 0.00 1 2 3 4 5 6 7 89 10 11 12 13 14 15 16 Speed (mph)