Lab 6 Horizontal Curve Paola Pineda

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LDS Business College *

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ID 105

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Mathematics

Date

Apr 3, 2024

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pdf

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2

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Horizontal Curve Staking Equipment: * & o o Location: Procedure: Total Station Prism Marking flags or pins Measuring Tape EB East lawn Paola Pineda 1. Calculate the deflection angles and short chord/long chord distances for a curve with the following information: R=107.64" L =100’ (fill in missing information) Station | Point Lx Ix Deflection Short Long Chord from Chord Distance Tangent, d x Distance 42100 PC 0 0 0 0 0 42420 2 20 |10-645 5.32 19.97 19.97 42+40 3 40 | 2129 10.65 19.97 39.77 42+60 4 | 90 | 3194 15.97 19.97 59.23 42+80 5 80 | 4258 | 2129 19.97 78.17 43400 PT | 100 | 53.23 26.61 19.97 96.44
Answer the following questions: What is the Radius for the curve? 107.64 What is the Delta Angle for the curve? 53.23 Describe how you would stake out a point on the curve that was not visible from your PC. We could apply the method from the previous lab where you have turning points to be able to reach the point that is not visible What are some sources of possible mistakes or errors in performing this task? Some possible errors would be human errors like if you zeroed at the wrong angle/position, if you staked it bad/incorrectly, or perhaps if you measured it wrong. How would you improve your precision on this task? By getting rid of human mistakes and by repeating the procedure to double-check the work done. How would you check your accuracy on this task? making sure you are using the right tools and the most accurate available as well as making sure you are performing the most accurate work by measuring correctly
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