8. Horizontal Curves.pdf - University of the East \u2013 Manila College of Engineering Civil Engineering Department NCE 2102 \u2013 Fundamentals of Surveying

8. Horizontal Curves.pdf - University of the East u2013...

This preview shows page 1 - 10 out of 27 pages.

NCE 2102 Fundamentals of Surveying Engr. Franz Alexis B. Juanico 1 st semester 2019 - 2020 U n i v e r s i t y o f t h e E a s t M a n i l a C o l l e g e o f E n g i n e e r i n g C i v i l E n g i n e e r i n g D e p a r t m e n t Horizontal Curves
Image of page 1
Route Surveying Supplies necessary data o determine alignment , grading , and earthwork quantities for the design of various engineering projects such as roads, railroads, pipelines and utilities. A survey for determining the route for a proposed project in order to acquire a Right-of-Way, servitude or easement from the property owner being crossed.
Image of page 2
Horizontal Curves Provides a transition between two straight lines of a roadway, also called as Tangents , when a direct point of intersection is not feasible. To reduce speed of vehicles Design Considerations Speed Limit in Highways Location of Obstructions Degree of Curve Radius of Curve
Image of page 3
Simple Curves Elements of a Simple Curve Backward and Forward Tangents Point of Curvature (PC) Point of Tangency (PT) Point of Intersection (PI) Radius of the Curve (R) Angle of Intersection (I) Tangent Distance (T) Chord Distance (C) Middle Ordinate (M) External Distance (E) Degree of Curve (D) Length of Curve (L) R R T T C/2 C/2 L/2 L/2 M E PC PT PI I I I/2
Image of page 4
Elements of a Simple Curve Tangent Distance ( T ) Chord Distance ( C ) Middle Ordinate ( M ) R R T T C/2 C/2 L/2 L/2 M E PC PT PI I I I/2
Image of page 5
Elements of a Simple Curve External Distance ( E ) Length of Curve ( L ) R R T T C/2 C/2 L/2 L/2 M E PC PT PI I I I/2
Image of page 6