Exit 63 of I-90 includes a tight loop ramp with a radius 250 ft. The advisory exit speed is 30 mph. how much superelevation needs to be provided to allow safe travel on this exit ramp? stay with the same units, I got e = 0.44, just want to double check
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- If the weaving configuration below has four lanes and 2000 feet between the ramps, propose the improvements needed to reach an overall level of service of C. Assume a PHF of 0.92, 10% trucks, FFS of 65 mph, lane capacity under ideal conditions of 2,350 pcph and 0.8 interchanges per mile. VFR 1200 VPH = VFF 3000 VPH = VRR = 2300 VPH VRF 1000 VPHWhat super-elevation rate would you recommend for a roadway with a design speed of 110 kph and a radius of 1400 ft? Assume f=0.11.The following cross-section notes of the road was examined to calculate volumes. The width of the roadway is 12m -12 -3 +6 -6 +24 -9 STA 5+040 -15 -4.5 +6 -8 -6 -30 -12 -6 -7 STA 5+140 a. What is the cross section at STA 5+040? STA 5+140?
- The 3 eastbound lanes of a rural freeway segment have 11 ft lane widths. There is a 3 ft lateral clearance on the right side of the road. There are no ramps within the influence area. What is the estimated FFS (mph)? Provide your answer to the nearest tenths.QUESTION 8 The 3 eastbound lanes of a rural freeway segment have 11 ft lane widths. There is a 3 ft lateral clearance on the right side of the road. There are no ramps within the influence area. What is the estimated FFS (mph)? Provide your answer to the nearest tenths.Referring to the vertical curve below, a -2% grade meets a 4.8% grade at the point of vertical intersection (PVI). The vertical curve length is 625 ft. What is the horizontal distance from the low point to PVC? (Round to the nearest foot and fill in the blank with a number only.) -G₁ PVC PVI L PVT + G₂
- A lot a complains from drivers and passengers have come concerning an uncomfortable weight loss sensation usually experienced at a particular sag curve. how would one redesign this sag curve to eliminate the weight loss sensation.For the through movement of the north-bound approach, what is the minimum change and clearance interval (CCL)? Assume a travel speed of 45 mph. Geometric layout is shown in the figure below. Mind you - - that approach is located along a +3% upgrade. Let's consider a semi truck as our design vehicle, which has a vehicle length of 72 ft! a. 3.3 sec b. 4.7 sec C. 5.5 sec d. 7.8 sec JINI 60 ft. 48 ft. TINI North-bound G=+3%The following cross-section notes of the road was examined to calculate volumes. The width of the roadway is 12m -12 -3 -6 4 +6 -6 +24 -9 STA 5+040 +6 -15 -4.5 -6 -6 30 -12 -7 -8 STA 5+140 Compute the volume between two stations using end area method.
- Question 5a) As the Area Engineer of Ghana Highway Authority, a lot a complains from drivers and passengers have come to you concerning an uncomfortable weight loss sensation usually experienced at a particular sag curve. You have therefore been tasked to redesign this sag curve to eliminate the weight loss sensation. How would you achieve this objective?If a four legged roundabout has 8 conflict points, how many does a 3 legged roundabout? From Highway EngineeringThe 4 northbound lanes of a rural freeway segment have 13 ft lane widths. There is no lateral clearance afforded on either side of the road. There are no ramps within the area of influence. What is the estimated FFS (mph)? Provide your answer to the nearest tenths.