Homework Answers
Add Answer to:
4. A vertical curve is designed for 55 mi/h and has an initial grade of 2.5%...
3. A 300 ft vertical curve connects a-2.3% approach grade and a +1.6% departure grade. The PVI is...
3. A 300 ft vertical curve connects a-2.3% approach grade and a +1.6% departure grade. The PVI is at 45+65 with elevation 369.22'. The curve is designed for 35 mi/hr speed limit. Calculate stations and elevations for PVC and PVT A 4% grade meets a failing grade of-25%. Station at P1 is at 60+00 and elevation is 95 feet. The length between PVC and PVT is 1400 feet. Find the elevation of the curve at station 58+00 4.
3. A...
An equal-tangent crest vertical curve has a 50-mi/h design speed. The initial grade is +3%. The...
An equal-tangent crest vertical curve has a 50-mi/h design speed. The initial grade is +3%. The high point is at station 33 + 40.76 and the PVT is at station 37 + 24.66. What is the elevation difference between the high point and the PVT?
A 500-ft-long equal-tangent crest vertical curve connects tangents that intersect at station 340 + 00 and...
A 500-ft-long equal-tangent crest vertical curve connects tangents that intersect at station 340 + 00 and elevation 1322 ft. The initial grade is +4.0% and the final grade is -2.5%. Determine the elevation and stationing of the high point, PVC, and PVT. Solve this problem using parabolic equation and offset method.
a) a 200 m vertical crest curve is designed to connect a +4.5% tangent with a...
a) a 200 m vertical crest curve is designed to connect a +4.5% tangent with a -2% tangent. What should the design speed be to provide ample stopping sight distance? SSD t Pra) [10 marks) b) A 300 m sag parabolic vertical curve has a PVC at station 2+600.000 and elevation 320.000 m. the initial grade is -4.0% and the final grade is +1.0%. Determine the stationing and elevation of PVI, PVT and the lowest point on the curve. Also...
7. A sag vertical curve connects a-4.75% grade and a +3.75% grade. The PVI is at...
7. A sag vertical curve connects a-4.75% grade and a +3.75% grade. The PVI is at station 45+90.00 at an elevation of 611.00 ft. The design speed is 50 mi/h. Determine the minimum length of the vertical curve using the AASHTO method ("K" factors). Round the minimum length up to the next 10 ft multiple for design of the vertical curve and associated calculations. Using this length, determine: The station and elevation of the PVC The station and elevation of...
A 200m equal tangent sag vertical curve has the PVC at station 3 + 700.000 and...
A 200m equal tangent sag vertical curve has the PVC at station 3 + 700.000 and elevation 321m. The initial grade is -3.5% and the final grade is 0.5%. Determine the elevation and stationing of the PVI, PVT, and lowest point on the curve.
A 5 degree curve (measured at the centerline of the inside lane) is being designed for...
A 5 degree curve (measured at the centerline of the inside lane) is being designed for a highway with a design speed of 60 mph. What is the closest any roadside object may be placed to the centerline of the inside lane of the roadway while maintaining adequate stopping sight distance? Assume lane widths are 12 feet. 3) A 520-ft long equal tangent crest vertical curve connects tangents that intersect at station 340+00 and elevation 1325 ft. The initial grade...
Help please 2 (36 Pts) A 4250 ft equal tangent parabolic vertical curve has a back...
Help please
2 (36 Pts) A 4250 ft equal tangent parabolic vertical curve has a back tangent grade (gl) of + 3.6 % and a forward tangent grade (g2) of-1.8 %. If the elevation of the PVI is 4264.82 ft. at station 78+ 25.00; what is: (a) the elevation and stationing of the PVC and PVT; (b) the elevation of the curve at station 83 + 63.00; and (c) the elevation and stationing of the highest and lowest points on...
Question 3 (10 marks) A 1,500ft long sag vertical curve (equal tangent) has a PC at...
Question 3 (10 marks) A 1,500ft long sag vertical curve (equal tangent) has a PC at stenine 1,500f. The initial grade is -3% and the fina on 3+70 and elevation I grade is +6%. Determine the elevation and station 3+70 and a PVC at stationing of the low point, PVI, and PVT
2. Given a sag vertical curve connecting a -1.5% grade with a +2.5% grade on a...
2. Given a sag vertical curve connecting a -1.5% grade with a +2.5% grade on a rural arterial highway, use the rate of vertical curvature and a design speed of 70 mi/h to compute the elevation of the curve at 100 ft stations if the grades intersect at station (475+00) at an elevation of 300.00 ft. Identify the station and elevation of the low point.
3. A 300 ft vertical curve connects a-2.3% approach grade and a +1.6% departure grade. The PVI is at 45+65 with elevation 369.22'. The curve is designed for 35 mi/hr speed limit. Calculate stations and elevations for PVC and PVT A 4% grade meets a failing grade of-25%. Station at P1 is at 60+00 and elevation is 95 feet. The length between PVC and PVT is 1400 feet. Find the elevation of the curve at station 58+00 4.
3. A...
a) a 200 m vertical crest curve is designed to connect a +4.5% tangent with a -2% tangent. What should the design speed be to provide ample stopping sight distance? SSD t Pra) [10 marks) b) A 300 m sag parabolic vertical curve has a PVC at station 2+600.000 and elevation 320.000 m. the initial grade is -4.0% and the final grade is +1.0%. Determine the stationing and elevation of PVI, PVT and the lowest point on the curve. Also...
7. A sag vertical curve connects a-4.75% grade and a +3.75% grade. The PVI is at station 45+90.00 at an elevation of 611.00 ft. The design speed is 50 mi/h. Determine the minimum length of the vertical curve using the AASHTO method ("K" factors). Round the minimum length up to the next 10 ft multiple for design of the vertical curve and associated calculations. Using this length, determine: The station and elevation of the PVC The station and elevation of...
A 5 degree curve (measured at the centerline of the inside lane) is being designed for a highway with a design speed of 60 mph. What is the closest any roadside object may be placed to the centerline of the inside lane of the roadway while maintaining adequate stopping sight distance? Assume lane widths are 12 feet. 3) A 520-ft long equal tangent crest vertical curve connects tangents that intersect at station 340+00 and elevation 1325 ft. The initial grade...
Help please
2 (36 Pts) A 4250 ft equal tangent parabolic vertical curve has a back tangent grade (gl) of + 3.6 % and a forward tangent grade (g2) of-1.8 %. If the elevation of the PVI is 4264.82 ft. at station 78+ 25.00; what is: (a) the elevation and stationing of the PVC and PVT; (b) the elevation of the curve at station 83 + 63.00; and (c) the elevation and stationing of the highest and lowest points on...
Question 3 (10 marks) A 1,500ft long sag vertical curve (equal tangent) has a PC at stenine 1,500f. The initial grade is -3% and the fina on 3+70 and elevation I grade is +6%. Determine the elevation and station 3+70 and a PVC at stationing of the low point, PVI, and PVT
2. Given a sag vertical curve connecting a -1.5% grade with a +2.5% grade on a rural arterial highway, use the rate of vertical curvature and a design speed of 70 mi/h to compute the elevation of the curve at 100 ft stations if the grades intersect at station (475+00) at an elevation of 300.00 ft. Identify the station and elevation of the low point.
Most questions answered within 3 hours.
-
What is the purpose of the 2' hydroxyl group in RNA? What is
the reason this...
asked 13 minutes ago -
You currently have 20,000X ethidium bromide. You want to make
250 mL of 1X ethidium bromide...
asked 25 minutes ago -
What mass of lead is needed to absorb 348 J of heat if the temp
of...
asked 28 minutes ago -
Explain the difference between an auction with reserve
and an auction without reserve. if not specified,...
asked 30 minutes ago -
Write the net ionic equation for the precipitation reaction that
occurs when aqueous solutions of aluminum...
asked 33 minutes ago -
How do we find the slope distance, given the horizontal distance
and the zenith angle?
For...
asked 32 minutes ago -
The table to the right lists probabilities for the corresponding
numbers of girls in three births....
asked 43 minutes ago -
The inverse demand function for good X is P = 5−0.05Q. The
firm’s cost curve is...
asked 42 minutes ago -
The Fresh Connection is really pushing the new line of juice
products. Given that it takes...
asked 48 minutes ago -
An acute decrease in mean arterial pressure (by getting up very
quickly, for instance) will cause...
asked 46 minutes ago -
Is the pH of solutions important when using the Fluoride ISE? If
so, why?
asked 50 minutes ago -
Producer surplus is:
a.
always equal to consumer surplus.
b.
the amount paid to sellers above...
asked 51 minutes ago