Question #251504
Compute the passing sight distance for the following data:
Speed of the passing vehicle = 26.67 m/sec
Speed of the overtaken vehicle = 24.44 m/sec
Time of initial maneuver = 4.3 sec
Average acceleration = 1.473 mph/sec
Time of passing vehicle occupies the left lane = 10.4 sec
Distance between the passing vehicle at the end of its maneuver and the opposing vehicle = 76 m
1
Expert's answer
2021-10-15T12:42:12-0400

Passing sight distance

D=d1+d2+d3d1=vbT1=26.674.3=114.681md2=vbT2+12aT2=24.444+121.47310.4=105.4196md3=76mD=d1+d2+d3=114.681+105.4196+76=296.1006mD=d_1+d_2+d_3\\ d_1= v_b*T_1=26.67*4.3=114.681 m\\ d_2=v_b*T_2+ \frac{1}{2}*a*T_2=24.44*4+ \frac{1}{2}*1.473*10.4=105.4196m\\ d_3=76 m\\ D=d_1+d_2+d_3=114.681+105.4196+76=296.1006 m\\

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