GELE Surveying (Geomatics) — Spiral (Transition) CurvesSlides
If you commute to a GELE review centre (or watch Super Tutor on the jeepney), these Spiral (Transition) Curves slides are designed for exactly that. Each slide holds one idea, one visual cue, and one PRC-style question pattern — ready for quick bursts of review between stops.
Exam context
Professional Regulation Commission (PRC) — Board of Geodetic Engineering runs the Geodetic Engineer Licensure Examination on September 2026. Its Surveying (Geomatics) section sits under a "Core" weighting, and Spiral (Transition) Curves is the 6th chapter in the 9-chapter GELE Surveying (Geomatics) rotation. The GELE passing mark is 70% weighted average, no sub-test below 50%, and the most recent 2026 paper drew about a meaningful share of questions from Surveying (Geomatics).
Spiral (Transition) Curves - Slides
Slides
Introduction to Spiral (Transition) Curves
Slide Id
S1
Why a Spiral is Needed: Physical Principles
Slide Id
S2
Geometric Properties of the Spiral
Slide Id
S3
The Spiral Angle Formula
Slide Id
S4
Worked Example 1: Calculating Spiral Angle
Slide Id
S5
Spiral Elements: Throw (Tangent Offset)
Slide Id
S6
Spiral Elements: Shift (p)
Slide Id
S7
Worked Example 2: Spiral Throw and Shift
Slide Id
S8
Deflection Angle Variation Along the Spiral
Slide Id
S9
Worked Example 3: Deflection Angle at a Point
Slide Id
S10
Superelevation and Design Speed
Slide Id
S11
Worked Example 4: Superelevation Demand
Slide Id
S12
Superelevation Development and Spiral Length
Slide Id
S13
Worked Example 5: Minimum Spiral Length for Superelevation
Slide Id
S14
NSCP 2015 Geometric Design Standards for Curves
Slide Id
S15
Common Pitfalls and Exam Tips
Slide Id
S16
Summary: Key Formulas and Relationships
Slide Id
S17
Practice Problem Set: Levels 1–3
Slide Id
S18
Stored In
chapter_slides
Slide Count
18
Summary Only
true
Previous chapter
Horizontal Curves (Simple, Compound, Reverse)
Next chapter
Vertical (Parabolic) Curves
Ready to practise for the GELE 2026?
Super Tutor's AI review plan adapts to your weak areas and builds a weekly practice schedule around your target GELE exam date.