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Transportation & Road Geometry Design: 
 
Stopping Sight Distance - Skidding Coefficient
  • Calculate the stopping sight distance using the skidding coefficient.
 
Stopping Sight Distance - Deceleration Rate
  • Calculate the stopping sight distance using the vehicle deceleration rate.
 
Skidding Distance
  • Calculate the skidding distance.
Braking Distance
  • Calculate the braking distance after a vehicle engages its brakes.
Curve Banking Angle
  • Calculate the required banking angle of a horizontal curve.
Tangent Runout and Superelevation Runoff Dist.
  • Calculate the tangent runoff and the superelevation runoff distance for a banked horizontal curve.
Minimum Curve Radius
  • Calculate the minimum curve radius required.
Length Crest Vrt Crv - Stop Sight Dist.
  • Calculate the minimum length of crest vertical curve based on stopping sight distance.
Stop Sight Dist - Crest Vrt Crv
  • Calculate the minimum stopping sight distance for a crest vertical curve.
Length Crest Vrt Crv - Pass Sight Dist
  • Calculate the minimum length of crest vertical curve based on passing sight distance.
Pass Sight Dist - Crest Vrt Crv
  • Calculate the minimum passing sight distance for a crest vertical curve.
Length Sag Vrt Crv - Stop Sight Dist
  • Calculate the minimum length of sag vertical curve based on stopping sight distance.
Length Sag Vrt Crv - Rider Comfort
  • Calculate the minimum length of sag vertical curve based on rider comfort.
Horiz. Crv - Central Angle
  • Calculate the central angle of a horizontal curve.
Horiz. Crv - Chord Length
  • Calculate the chord length of a horizontal curve.
Horiz. Crv - Radius
  • Calculate the radius of a horizontal curve.
Horiz. Crv - Deg. of Crv.
  • Calculate the degree of curve of a horizontal curve.
Horiz. Crv - Length of Crv.
  • Calculate the length of curve of a horizontal curve.
Horiz. Crv - PI to PC/PT Dist.
  • Calculate the distance from the point of intersection (PI) to the point of curvature (PC)/point of tangency (PT) of a horizontal curve.
Horiz. Crv - Tangent Offset
  • Calculate the tangent offset to a point on the horizontal curve.
Horiz. Crv - Offset Angle
  • Calculate the offset angle for a horizontal curve.
Vert. Crv - Grade Change
  • Calculate the grade change for a vertical curve.
Vert. Crv - Point Elevation
  • Calculate the elevation of a point on a vertical curve.
Vert. Crv - Turning Point
  • Calculate the turning point of vertical curve.
Vert. Crv - Middle Ordinate
  • Calculate the middle ordinate of a vertical curve.
Spiral Crv - Spiral Length
  • Calculate the length of a spiral for a spiral curve.
Spiral Crv - Deflection Angle
  • Calculate the deflection angle of a spiral curve.
Spiral Crv - Required Length
  • Calculate the required length of a spiral curve.
Transportation Problem 1
  • Calculate the passing sight distance for a crest vertical curve.
Transportation Problem 2
  • Calculate the elevation of the PVI of a crest vertical curve.
 



 
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