A symmetrical parabolic summit curve connects two grades of +5.9% and -4.2%. It is to pass through a point "D" on the curve at station 25+180m. If the stationing of the grade intersection is 25+145m and the stationing of PVC is 24+979m, determine the following:

Q: An equal-tangent vertical curve is to be constructed between grades of -3% and +2% (travelling left…

A: Given:- Downgrade of curve, g1 = -3% Upgrade of curve, g2 = +2% Station of PVI = 4 + 550.000…

Q: signed to pass through the nding elevations as follows Stationing 5+432

A:

Q: 23.15 A +4% grade intersects a -3% grade at station 3+ 000m at elevation 566.98 m. Compute the…

A: PVCSTATION=PVISTA-L2PVCsta=3000-6002=2+700PVCELV=PVIELV-g1L2PVCelv=566.98-0.04×6002PVCelv=554.98m

Q: B-Unequal-Tangent Parabolic (Vertical) Curve: Example: A grade g1 of -2% intersects g2 of +1.6% at a…

A: Solution: Point A STA 85 + 00: Elev. = 743.24+2(2) = 747.24' Point B STA 90 + 00: Elev. =…

Q: The tangents of a sag curve connects at the point of intersection having Station 18+407.60 and…

A: 1. Given : At point of intersection (PI) ⇒ Station = 18 + 407.60…

Q: 3. A grade of +5% grade intersects a grade of -3.0% P.C. has a of 10 + 110.00 which has an elevation…

A:

Q: A grade of -5% grade intersects a grade of 0%. P.C. has a STATION of 10 + 110.00 which has an…

A: Given that   Sag vertical curve   g1 = -5%   g2 = 0   A = G1-G2   A = -5   PC station = (10+110)…

Q: A symmetrical vertical summit curve has tangents of +4.5% and -2.5%. The allowable rate of change of…

A: Question is based on the vertical summit curve . Tangents of curve,allowable rate of change of…

Q: Q6. A -2.5% grade is connected to a +1.0% grade by means of a 180 m vertical curve. The P.I. station…

A:

Q: A symmetrical parabolic summit curve connects two grades of +6% and -4%. It is to pass though a…

A: "Since you have posted a question with multiple sub-parts. We will solve the first three sub-parts…

Q: Given two grades intersecting at station 1 + 250m, one grade at +6%, the other at -3%. Use a…

A: Given data, Two grade intersecting at station 1+250m g1=+6% and g2=-3% L=183m L1=121.95m and…

Q: A symmetrical parabolic summit curve is to connect two roads with grades of +4% and -2.5% that meet…

A: G1 = 4%  G2 = -2.5%

Q: A -4% grade at Sta. 5 + 700 and elev. 110.2 is to connect to a +6% grade at Sta. 6 + 100 and elev.…

A: G1 = -4%  , BVC, station = 5+700  ,  elevation = 110.2                            G1 = +6% , EVC,…

Q: A +4% grade line intersects a -2 % grade line at station 6+800, where the elevation is 642.40 m. as…

A: When a route changes direction from right to left or its alignment changes from up to down, curves…

Q: Identify the type of vertical curve (sag or crest) by the following rates of change in grade. -0.5%…

A:

Q: An equal tangent vertical curve is to be constructed between grades of -6.75% (initial) and 4.75%…

A: G1= -6.75% G2= 4.75%PVI station = 12+000.000 PVI elevation = 319m Station = 12 + 071.00 Elevation =…

Q: A vertical parabolic curve of length 180m has the following specifications. The point of interaction…

A:

Q: 23.1 A 1,500-ft vertical curve is to be used for joining a +3.0% grade line and a-4.0% grade line.…

A: The length of curve, L= 1500 ftThe grade of upgrade, g1 = +3%The grade of downgrade, g2 = -4%The…

Q: vertical parabolic curve is to be used as a grade-separation structure. The curve is 231 m long and…

A:

Q: A symmetrical vertical summit curve has tangents of -6% and +4%. The allowable rate of change of…

A: Given data- The initial grade is -6% The final grade is +4% The allowable rate of change of grade is…

Q: A 669m equal tangent crest vertical curve has PVC at Sta 18+662 and at elevation 199m. The initial…

A: Given- PVCSTA=18+662E=199mn1=7.25%n2=-7.42%L=669m

Q: A 3% ascending grade meets a 5% descending grade at station 2+110 and elevation 100m. The tangents…

A:

Q: A grade ascending at the rate of 6% meets another grade descending at the rate of 4% at the vertex…

A: Given  G1= 6%  G2= -4 %

Q: 26.10 A grade of +1.5% intersects a grade of -2.5% at station of 1 + 080 of elevation 68.94 m. if…

A: Given Data:g1=1.5%g2=-2.5%station=1+080Elevation=68.94m

Q: A parabolic curve has a descending grade of -0.85% which meets an ascending grade of 0.35% at sta.…

A: Given Data: A parabolic curve is given as: Descending grade(g1)=-0.85%Ascending…

Q: (a) Station and elevation of PC & PT (b) Station of the lowest point of the curve (c) Elevation of…

A:

Q: between those two rc a. The required le b. Stationing and c. Location and el

A:

Q: A -4% grade at Sta. 5 + 700 and elev. 110.2 is to connect to a +6% grade at Sta. 6 + 100 and elev.…

A: Determine the elevation of PCC and location of PVI.

Q: A 1600-ft-long equal tangent sag vertical curve has the PVI at station 120+00 and elevation…

A: Given:- PVI station = 120+00 Elevation = 1500 ft Initial grade =-3.5% Final grade =+6.5% To find:-…

Q: A vertical parabolic curve of length 180m has the following specifications. The point of interaction…

A: Vertical curves are utilized to give continuous change between two adjoining vertical grade lines.…

Q: An equal tangent crest curve connects a +2% initial grade with a -1% final grade, and is designed…

A: Grade: G1 = 2% Grade: G2 = -1% Design speed: V = 55 mi/h Station at PVI: = 233+40 Elevation of PV:=…

Q: A -6% grade and a +2% grade intersect at STA 12 + 200 whose elevation is at 25.632 m. The two grades…

A:

Q: PI sta = 18+00, PI elev = 300.00, L = 20 stations, incoming grade = +2%, outgoing grade = -3%   The…

A:

Q: Design the curve, of An equal tangent vertical curve is to be constructed between grades of -2.0%…

A: Initial Grade = -2.0%Final Grade = +1.0%PVI1 (Point of Vertical Intersection 1): Station 11+000.000,…

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