Circular Curves Layout by Deflection Angles with a Total Station or an EDM
{"Image DocumentName": "Circular Curves Layout by Deflection Angles with a Total Station or an EDM", "Image ImageDescription": "All stations will be positioned from PC. Compute the chord length and the deflection angle from the direction. PC-PI as follows: (see fig 25-6) Example. Sa D. Ca = 2R sin da. da= (degrees) 200. Where: da = D. Sa D. or, da. = Sa Theory; the angle between the tangent and a chord is equal to half the. central angle subtended by the chord, so get da. Ca. from which Ca = 2R sin da. Also, sin. da. = 2R", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}