FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Sight Distance when Length of Curve is Less Formula

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

GoSight Distance when S is Less than L and h1 and h2 are same Formula

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 = 0.5 \cdot L c + \frac{100 \cdot {(\sqrt{H} + \sqrt{h 2})}^{2}}{(g 1) - (g 2)}

SD - Sight Distance SSD?L_c - Length of Curve?H - Height of Observer?h₂ - Height of Object?g₁ - Upgrade?g₂ - Downgrade?

Sight Distance when Length of Curve is Less Example

With values

With units

Only example

Here is how the Sight Distance when Length of Curve is Less equation looks like with Values.

Here is how the Sight Distance when Length of Curve is Less equation looks like with Units.

Here is how the Sight Distance when Length of Curve is Less equation looks like.

478.2267 = 0.5 \cdot 616 + \frac{100 \cdot {(\sqrt{1.2} + \sqrt{2})}^{2}}{(2.2) - (-1.5)}

478.2267m = 0.5 \cdot 616m + \frac{100 \cdot {(\sqrt{1.2m} + \sqrt{2m})}^{2}}{(2.2) - (-1.5)}

478.2267 = 0.5 \cdot 616 + \frac{100 \cdot {(\sqrt{1.2} + \sqrt{2})}^{2}}{(2.2) - (-1.5)}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Civil » Category

Surveying Formulas » fx Sight Distance when Length of Curve is Less

Sight Distance when Length of Curve is Less Solution

Follow our step by step solution on how to calculate Sight Distance when Length of Curve is Less?

FIRST Step Consider the formula

SD = 0.5 \cdot L c + \frac{100 \cdot {(\sqrt{H} + \sqrt{h 2})}^{2}}{(g 1) - (g 2)}

Next Step Substitute values of Variables

∴

SD = 0.5 \cdot 616m + \frac{100 \cdot {(\sqrt{1.2m} + \sqrt{2m})}^{2}}{(2.2) - (-1.5)}

Next Step Prepare to Evaluate

∴

SD = 0.5 \cdot 616 + \frac{100 \cdot {(\sqrt{1.2} + \sqrt{2})}^{2}}{(2.2) - (-1.5)}

Next Step Evaluate

∴

SD = 478.226666945025m

LAST Step Rounding Answer

∴

SD = 478.2267m

Sight Distance when Length of Curve is Less Formula Elements

Variables

Functions

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.

Formulas to find Sight Distance SSD

Length of Curve

Length of Curve is determined by the permissible rate of change of grade or from centrifugal consideration as appropriate.

Symbol: L_c

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Length of Curve

Height of Observer

Height of Observer is the length or vertical length of the observer.

Symbol: H

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Height of Observer

Height of Object

Height of Object is the vertical distance of the object which is being observed.

Symbol: h₂

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Height of Object

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.

Formulas to find Upgrade

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.

Formulas to find Downgrade

sqrt

A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.

Syntax: sqrt(Number)

Other Formulas to find Sight Distance SSD

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

SD = (\frac{L c}{2}) + (400 \cdot \frac{h}{(g 1) - (g 2)})

Go Sight Distance when S is Less than L and h1 and h2 are same

SD = \sqrt{\frac{800 \cdot h \cdot L c}{(g 1) - (g 2)}}

Other formulas in Surveying Vertical Curves category

Go Length of Vertical Curve

L = \frac{N}{P N}

Go Change of Grade given Length

N = L \cdot P N

Go Permissible Grade given Length

P N = \frac{N}{L}

Go Length of Curve Based on Centrifugal Ratio

L c = ((g 1) - (g 2)) \cdot \frac{V^{2}}{100 \cdot f}

How to Evaluate Sight Distance when Length of Curve is Less?

Sight Distance when Length of Curve is Less evaluator uses Sight Distance SSD = 0.5*Length of Curve+(100*(sqrt(Height of Observer)+sqrt(Height of Object))^2)/((Upgrade)-(Downgrade)) to evaluate the Sight Distance SSD, The Sight Distance when Length of Curve is Less is defined as a condition where the difference between two vehicles or sight distance is large compared to the length of vertical curve. Sight Distance SSD is denoted by SD symbol.

How to evaluate Sight Distance when Length of Curve is Less using this online evaluator? To use this online evaluator for Sight Distance when Length of Curve is Less, enter Length of Curve (L_c), Height of Observer (H), Height of Object (h₂), Upgrade (g₁) & Downgrade (g₂) and hit the calculate button.

FAQs on Sight Distance when Length of Curve is Less

What is the formula to find Sight Distance when Length of Curve is Less?

The formula of Sight Distance when Length of Curve is Less is expressed as Sight Distance SSD = 0.5*Length of Curve+(100*(sqrt(Height of Observer)+sqrt(Height of Object))^2)/((Upgrade)-(Downgrade)). Here is an example- 478.2267 = 0.5*616+(100*(sqrt(1.2)+sqrt(2))^2)/((2.2)-((-1.5))).

How to calculate Sight Distance when Length of Curve is Less?

With Length of Curve (L_c), Height of Observer (H), Height of Object (h₂), Upgrade (g₁) & Downgrade (g₂) we can find Sight Distance when Length of Curve is Less using the formula - Sight Distance SSD = 0.5*Length of Curve+(100*(sqrt(Height of Observer)+sqrt(Height of Object))^2)/((Upgrade)-(Downgrade)). This formula also uses Square Root (sqrt) function(s).

What are the other ways to Calculate Sight Distance SSD?

Here are the different ways to Calculate Sight Distance SSD-

Sight Distance SSD=(Length of Curve/2)+(400*Height of Vertical Curves/((Upgrade)-(Downgrade)))
Sight Distance SSD=sqrt((800*Height of Vertical Curves*Length of Curve)/((Upgrade)-(Downgrade)))

Can the Sight Distance when Length of Curve is Less be negative?

Yes, the Sight Distance when Length of Curve is Less, measured in Length can be negative.

Which unit is used to measure Sight Distance when Length of Curve is Less?

Sight Distance when Length of Curve is Less 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 can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Sight Distance when Length of Curve is Less Formula

​GoSight Distance when Length of Curve is Less and Both Height of Observer and Object is Same Formula

​GoSight Distance when S is Less than L and h1 and h2 are same Formula

Sight Distance when Length of Curve is Less Example

Sight Distance when Length of Curve is Less Solution

Sight Distance when Length of Curve is Less Formula Elements

Other Formulas to find Sight Distance SSD

Other formulas in Surveying Vertical Curves category

How to Evaluate Sight Distance when Length of Curve is Less?

FAQs on Sight Distance when Length of Curve is Less

Variable Name

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

GoSight Distance when S is Less than L and h1 and h2 are same Formula