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The tangents for a D = 4º30' circular curve (arc definition) meet at PI Sta 34+18.19 and the deflection angle I = 25º48'. 1) Compute L, T, E, M, LC, R for circular curves . 2) Calculate the Stations of the PC and PT, plus the total chords and deflection angles for all the full stations on the curve.

The tangents for a D = 4º30' circular curve (arc definition) meet at PI Sta 34+18.19 and the deflection angle I = 25º48'. 1) Compute L, T, E, M, LC, R for circular curves . 2) Calculate the Stations of the PC and PT, plus the total chords and deflection angles for all the full stations on the curve.

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The tangents for a D = 4º30' circular curve (arc definition) meet at PI Sta 34+18.19 and the deflection angle I = 25º48'.

1) Compute L, T, E, M, LC, R for circular curves .

2) Calculate the Stations of the PC and PT, plus the total chords and deflection angles for all the full stations on the curve.

Station Defl Increment (ö) Defl Angle (Eö) Total Chord (Cpc) PT= PC =
Transcribed Image Text:Station Defl Increment (ö) Defl Angle (Eö) Total Chord (Cpc) PT= PC =
Expert Solution
Step 1

D=4o30;PI Sta 34+18.19∆=25o48'R=12'L=πR∆180=5.405 ftT=Rtan∆2=12tan25o48'2=2.75 ftE=R1cos∆2-1E=0.311 ftM=R1-cos∆2M=0.303 ftStation PC=PI-T=3418.19-2.75=3415.44 ftStation PT=PC+L=3415.44+5.405=3420.845 ftdcft=∆2l=25o48'5×5.405=2.386 ft

 

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