Question 2 a) A curve is required to connect an entry grade of +3% and an exit grade of +2% to satisfy the sight distanc

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Question 2 A A Curve Is Required To Connect An Entry Grade Of 3 And An Exit Grade Of 2 To Satisfy The Sight Distanc 1 (83.91 KiB) Viewed 25 times

Question 2 a) A curve is required to connect an entry grade of +3% and an exit grade of +2% to satisfy the sight distance requirement. If the braking distance is four times a perception reaction distance of 50m, determine the minimum length of the curve assuming an average driver eye height and hazard is at the level of the carriageway. b) Table 2 presents the geometric and traffic characteristics of three road sections. As a Highway Engineer will you recommend the provision of climbing lane for each section? and why? Table 2: Geometric and Traffic Characteristics Road Section Design speed Gradient (km/h) Section A Section B Section C Major Topic 4: Crest Curve Design 100 80 60 To Suburb 2 (%) 5 6 7 Major Topic 5: Climbing Lane To Suburb 3 Grade Length (m) 550 600 450 Blooms Designation: Score: AP 7 Figure 2: Intersection design Major Topic 6: Intersection Design c) As a Highway Engineer tasked to evaluate the intersection design in Figure 2, do you think there is an error in the design? If so, then give recommendation(s) to rectify the error. Heavy Truck (% of AADT) 10 25 20.5 A B Blooms Designation: AN Score: 7 To Suburb 1 Blooms Designation: Score: AP G TOTAL SCORE: 20