Fx Copy
LaTeX Copy
Sight Distance SSD is s the minimum distance between two vehicles moving along a curve, when the driver of one vehicle can just see the other vehicle on the road. Check FAQs
SD=(Lc2)+(400h(g1)-(g2))
SD - Sight Distance SSD?Lc - Length of Curve?h - Height of Vertical Curves?g1 - Upgrade?g2 - Downgrade?

Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same Example

With values
With units
Only example

Here is how the Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same equation looks like with Values.

Here is how the Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same equation looks like with Units.

Here is how the Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same equation looks like.

491.7838Edit=(616Edit2)+(4001.7Edit(2.2Edit)-(-1.5Edit))
You are here -

Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same Solution

Follow our step by step solution on how to calculate Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same?

FIRST Step Consider the formula
SD=(Lc2)+(400h(g1)-(g2))
Next Step Substitute values of Variables
SD=(616m2)+(4001.7m(2.2)-(-1.5))
Next Step Prepare to Evaluate
SD=(6162)+(4001.7(2.2)-(-1.5))
Next Step Evaluate
SD=491.783783783784m
LAST Step Rounding Answer
SD=491.7838m

Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same Formula Elements

Variables
Sight Distance SSD
Sight Distance SSD is s the minimum distance between two vehicles moving along a curve, when the driver of one vehicle can just see the other vehicle on the road.
Symbol: SD
Measurement: LengthUnit: m
Note: Value can be positive or negative.
Length of Curve
Length of Curve is determined by the permissible rate of change of grade or from centrifugal consideration as appropriate.
Symbol: Lc
Measurement: LengthUnit: m
Note: Value can be positive or negative.
Height of Vertical Curves
Height of Vertical Curves is the distance between the lowest and highest points of a person standing upright.
Symbol: h
Measurement: LengthUnit: m
Note: Value can be positive or negative.
Upgrade
Upgrade is the gradient or the slope which is towards the crest of a curve. Mentioned by %.
Symbol: g1
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Downgrade
Downgrade is the gradient or the slope which is guided to the downward direction of a curve. Mentioned by %.
Symbol: g2
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.

Other Formulas to find Sight Distance SSD

​Go Sight Distance when Length of Curve is Less
SD=0.5Lc+100(H+h2)2(g1)-(g2)
​Go Sight Distance when S is Less than L and h1 and h2 are same
SD=800hLc(g1)-(g2)

Other formulas in Surveying Vertical Curves category

​Go Length of Vertical Curve
L=NPN
​Go Change of Grade given Length
N=LPN
​Go Permissible Grade given Length
PN=NL
​Go Length of Curve Based on Centrifugal Ratio
Lc=((g1)-(g2))V2100f

How to Evaluate Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same?

Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same evaluator uses Sight Distance SSD = (Length of Curve/2)+(400*Height of Vertical Curves/((Upgrade)-(Downgrade))) to evaluate the Sight Distance SSD, The Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same is defined as a condition where the sight distance is larger but the height of two vehicles or the observer and the object is same. ie. h1=h2. Sight Distance SSD is denoted by SD symbol.

How to evaluate Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same using this online evaluator? To use this online evaluator for Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same, enter Length of Curve (Lc), Height of Vertical Curves (h), Upgrade (g1) & Downgrade (g2) and hit the calculate button.

FAQs on Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same

What is the formula to find Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same?
The formula of Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same is expressed as Sight Distance SSD = (Length of Curve/2)+(400*Height of Vertical Curves/((Upgrade)-(Downgrade))). Here is an example- 491.7838 = (616/2)+(400*1.7/((2.2)-((-1.5)))).
How to calculate Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same?
With Length of Curve (Lc), Height of Vertical Curves (h), Upgrade (g1) & Downgrade (g2) we can find Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same using the formula - Sight Distance SSD = (Length of Curve/2)+(400*Height of Vertical Curves/((Upgrade)-(Downgrade))).
What are the other ways to Calculate Sight Distance SSD?
Here are the different ways to Calculate Sight Distance SSD-
  • Sight Distance SSD=0.5*Length of Curve+(100*(sqrt(Height of Observer)+sqrt(Height of Object))^2)/((Upgrade)-(Downgrade))OpenImg
  • Sight Distance SSD=sqrt((800*Height of Vertical Curves*Length of Curve)/((Upgrade)-(Downgrade)))OpenImg
Can the Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same be negative?
Yes, the Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same, measured in Length can be negative.
Which unit is used to measure Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same?
Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Sight Distance when Length of Curve is Less and Both Height of Observer and Object is Same can be measured.
Copied!