Curve Setting Out

7/28/2019 Curve Setting Out

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Curve setting out calculation in CDS

1. Create a new file to start a job. New the dialog box will appear New Job Ok.


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2. Then, add point into CDS. Click Points Add Points and the add box will appear. Key in

the coordinate the click Ok.

Key in all the coordinate of points needed and the pointwill display on the screen.

Insert the number of point Show Apply Finish. Theline/string willshown.


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3. Add string to show the line joining the points. Strings Add the box will appear.


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4. To show the bearing and distance for the particular strings.

String string Attributes Check the box bearing and distance Ok.


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5. By using COGO Curves IP & Radius, the curve of the road can be calculated. Keyin the bearing in and bearing out and also radius of the curve.

Note: Do the same procedures to all IP point to create the curves.


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*The example of result is in appendix A and B.

6. To create report of setting out route. Click COGO Curve Route curve

To create the curvereport for the curvethat had beendesigned

To create the alignmentreport. This report

contains the


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7. Then precede the job on creating the set out data. This data will be used in the field.

COGO Stake out Report

Appendix A


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BY USING CDS

CIRCULAR IP 2SPIRAL N 949.336SPIRAL E 994.842

DELTA 6638'06" xs 0.000Rc 20.000 ys 0.000Ls 0.000Dc 28628'44"

THETAs 000'00" LC 0.000DELTAc 6638'06" k 0.000

Ts 13.146Lc 23.260

CIRCULAR IP 3SPIRAL N 961.388SPIRAL E 1025.597DELTA 2212'30" xs 0.000

Rc 20.000 ys 0.000Ls 0.000Dc 28628'44"

THETAs 000'00" LC 0.000DELTAc 2212'30" k 0.000

Ts 3.925Lc 7.752


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Appendix B

JOB NAME: C:\Users\GEOMATICYBER\Desktop\curveDate: 06/01/2011POINT CHAINAGE OFFSET CODE BEARING DISTANCE EASTING NORTHING_________________________________________________________________________Setup Station 3 at 1025.597 961.388

1 0.000 0.000 28634'16" 63.214 965.008 979.4172 0.000 0.000 24836'04" 33.032 994.842 949.3364 0.000 0.000 9048'34" 36.026 1061.619 960.8795 Null Null 26606'50" 40.105 985.585 958.670

6 Null Null 29345'55" 28.204 999.785 972.7547 Null Null 24836'05" 19.886 1007.082 954.1338 Null Null 24836'05" 3.925 1021.942 959.9569 Null Null 16942'20" 20.382 1029.239 941.335

10 Null Null 9048'34" 3.925 1029.522 961.33349 0.000 0.000 28634'16" 63.214 965.008 979.41750 5.000 0.000 28414'11" 58.876 968.529 975.86751 10.000 0.000 28132'08" 54.651 972.050 972.31752 15.000 0.000 27823'26" 50.567 975.571 968.76753 20.000 0.000 27442'23" 46.663 979.092 965.21754 25.000 0.000 27022'17" 42.985 982.613 961.66755 29.220 0.000 SC 26606'51" 40.105 985.585 958.67056 0.000 0.000 29345'55" 28.204 999.785 972.75457 30.000 0.000 26516'32" 39.587 986.144 958.12758 32.000 0.000 26309'34" 38.196 987.673 956.83959 34.000 0.000 26106'08" 36.717 989.322 955.70960 36.000 0.000 25906'53" 35.154 991.076 954.75061 38.000 0.000 25712'41" 33.512 992.917 953.97062 40.000 0.000 25524'34" 31.796 994.826 953.378

63 42.000 0.000 25343'53" 30.013 996.785 952.98064 44.000 0.000 25212'21" 28.170 998.775 952.77965 46.000 0.000 25052'17" 26.274 1000.774 952.77866 48.000 0.000 24946'41" 24.334 1002.763 952.97767 50.000 0.000 24859'41" 22.360 1004.723 953.37368 52.000 0.000 24837'03" 20.366 1006.633 953.96369 52.480 0.000 CS 24836'04" 19.886 1007.082 954.13370 55.000 0.000 24836'04" 17.366 1009.428 955.05271 60.000 0.000 24836'04" 12.366 1014.083 956.87672 65.000 0.000 24836'04" 7.366 1018.739 958.70073 68.441 0.000 SC 24836'04" 3.925 1021.942 959.95674 0.000 0.000 16942'19" 20.382 1029.239 941.33575 70.000 0.000 24707'54" 2.369 1023.415 960.46876 72.000 0.000 20913'58" 0.498 1025.354 960.95377 74.000 0.000 9445'57" 1.741 1027.332 961.243


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78 76.000 0.000 9049'26" 3.732 1029.329 961.33479 76.193 0.000 CS 9048'34" 3.925 1029.522 961.33380 80.000 0.000 9048'34" 7.732 1033.329 961.27981 85.000 0.000 9048'34" 12.732 1038.328 961.20882 90.000 0.000 9048'34" 17.732 1043.328 961.13783 95.000 0.000 9048'34" 22.732 1048.327 961.06784 100.000 0.000 9048'34" 27.732 1053.327 960.99685 105.000 0.000 9048'34" 32.732 1058.326 960.92686 108.293 0.000 9048'34" 36.026 1061.619 960.879


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Manual calculation

Calculation parameter for Curve 1

1) Tangent length = R tan /2

= 20 tan 33 19 03

= 13.146m

2) Curve Length = R

= (20) (66 38 06) ( )180

= 23.260

3) Chord Length = 2R sin /2

= 2(20) sin 33 19 03

= 21.971

Information given:

= 135 14 10 68 36 04 = 66 38 06

Radius, R = 20m

Interval = 2m

Lc

R

/2

Chordlength

M

E

R : radius

Lc : Length of curve

Direct Distance

Deflection angle

M = middle Ordinance

E = External Distance


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4) Deflection Angle, = ch/Lc *(/2)

Example : 2.780 *(33 19 03) = 3 58 55

23.260

5) Direct Distance = 2R sin

Example : 2(20) sin 3 58 55 = 2.778m


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Calculation parameter for Curve 2

1)Tangent length = R tan /2

= 20 tan 11 06 15

= 3.925m

2) Curve Length = R

= (20) (22 12 30) ( )180

= 7.752m

3) Chord Length = 2R sin /2

= 2(20) sin 11 06 15

= 7.704

4) Deflection Angle, = ch/Lc *(/2)

Example : 1.559 *(11 06 15) = 2 13 59.35

7.752

5) Direct Distance = 2R sin

Example : 2(20) sin 2 13 59.35 = 1.559m

Information given:

= 90 48 34 68 36 04 = 22 12 30

Radius, R = 20m

Interval = 2m


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CURVE 1

Chainage

DeflectionAngle

DirectDistance Bearing Latid Dipat North East

135 14 10 958.670 985.5850.78 1 07' 02" 0.78 134 07 08 -0.543 0.56 958.127 986.1452.78 3 58' 55" 2.778 131 15 15 -1.832 2.088 956.838 987.6734.78 6 50' 48.65" 4.769 128 22 21.3 -2.962 3.738 955.708 989.323

6.78 9

42' 41.89" 6.748 125 31 28 -3.921 5.492954.749 991.077

8.7812 34'35.13" 8.71 122 39 34.8 -4.7 7.333 953.970 992.918

10.78 15 26' 28.37" 10.65 119 47 41.6 -5.292 9.242 953.378 994.82712.78 18 18' 21.61" 12.564 116 55 48.3 -5.69 11.202 952.980 996.79214.78 21 10' 14.86" 14.446 114 03 55.14 -5.891 13.19 952.779 998.77516.78 24 02 '8.1" 16.292 111 12 1.9 -5.892 15.189 952.778 1000.77418.78 26 54' 1.34" 18.098 108 20 8.66 -5.693 17.179 952.977 1002.76420.78 29 45' 54.58" 19.858 105 28 15.4 -5.297 19.138 953.373 1004.72322.78 32 37' 47.82" 21.568 102 36 22 -4.707 21.048 953.963 1006.63323.26 33 19' 03" 21.971 101 55 07 -4.537 21.497 954.133 1007.082

CURVE 2

Chainage

Deflectionangle

Directdistance Bearing Latid Dipat North East

68 36 04 959.956 1021.9431.599 2 13' 59.35" 1.599 70 50 3.35 0.512 1.473 960.468 1023.4163.599 5 05' 52.82" 3.554 73 41 56.82 0.998 3.411 960.954 1025.3545.599 7 57' 46.28" 5.541 76 33 50.28 1.288 5.389 961.244 1027.332

7.59910 49'39.75" 7.514 79 25 43.75 1.378 7.386 961.334 1029.329


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7.752 11 06' 15" 7.704 79 42 19 1.377 7.58 961.333 1029.523


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Comparison:

Coordinate of each chainage in curve 1

Manual Calculation From CDS

North East North East958.670 985.585 958.670 985.585

958.127 986.145 958.127 986.144

956.838 987.673 956.839 987.673

955.708 989.323 955.709 989.322

954.749 991.077 954.750 991.076

953.970 992.918 953.970 992.917

953.378 994.827 953.378 994.826

952.980 996.787 952.980 996.785

952.779 998.775 952.779 998.775

952.778 1000.774 952.778 1000.774

952.977 1002.764 952.977 1002.763

953.373 1004.723 953.373 1004.723

953.963 1006.633 953.963 1006.633

954.133 1007.082 954.133 1007.082

Coordinate of each chainage in curve 2

Manual Calculation From CDS

North East North East959.956 1021.943 959.956 1021.942

960.468 1023.416 960.468 1023.415

960.954 1025.354 960.953 1025.354

961.244 1027.332 961.243 1027.332

961.334 1029.329 961.334 1029.329

961.333 1029.523 961.333 1029.522

Overall, the value coordinate from these 2 methods of getting coordinate is same and did nothave too big different.


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Documents

Curve Setting Out