a) The crest curve in Figure 2 is to be designed for a vehicle travelling at...
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a) The crest curve in Figure 2 is to be designed for a vehicle travelling at a speed of 100km/hr. With a friction factor of 0.25 between the tyres and the road surface, driver's perception reaction time and eye height of 2.5secs and 1.05m, respectively and a hazard at the same level of the carriageway, determine the elevation of PC, and the location and elevation of the highest point on the curve using the parameters of the curve in Figure 2. (EV,10) Station = 4+325 PI Elev.=185.500m q=-2.5% P=+3% PC PT Figure 2: Crest Curve b) Would you consider the provision of passing sight distance during the design of multilane dual carriageways? Give reason(s) for your answer. (CR, 5) c) What would be your consideration for eliminating weight loss sensation during the design of a sag curve? (AN, 5) a) The crest curve in Figure 2 is to be designed for a vehicle travelling at a speed of 100km/hr. With a friction factor of 0.25 between the tyres and the road surface, driver's perception reaction time and eye height of 2.5secs and 1.05m, respectively and a hazard at the same level of the carriageway, determine the elevation of PC, and the location and elevation of the highest point on the curve using the parameters of the curve in Figure 2. (EV,10) Station = 4+325 PI Elev.=185.500m q=-2.5% P=+3% PC PT Figure 2: Crest Curve b) Would you consider the provision of passing sight distance during the design of multilane dual carriageways? Give reason(s) for your answer. (CR, 5) c) What would be your consideration for eliminating weight loss sensation during the design of a sag curve? (AN, 5)
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