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Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle Formula

GoStopping Sight Distance given Lag Distance and Braking Distance Formula

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Sight Stopping Distance is the maximum distance a driver can see and stop before colliding with an object or pedestrian on the road ahead. Check FAQs

SSD = V speed \cdot t reaction + \frac{{V speed}^{2}}{2 \cdot [g] \cdot f}

SSD - Sight Stopping Distance?V_speed - Vehicle Speed?t_reaction - Reaction Time?f - Coefficient of Friction?[g] - Gravitational acceleration on Earth?

Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle Example

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Here is how the Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle equation looks like with Values.

Here is how the Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle equation looks like with Units.

Here is how the Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle equation looks like.

71.6503 = 6.88 \cdot 10 + \frac{{6.88}^{2}}{2 \cdot 9.8066 \cdot 0.8467}

71.6503m = 6.88m/s \cdot 10s + \frac{{6.88m/s}^{2}}{2 \cdot 9.8066m/s² \cdot 0.8467}

71.6503 = 6.88 \cdot 10 + \frac{{6.88}^{2}}{2 \cdot 9.8066 \cdot 0.8467}

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Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle Solution

Follow our step by step solution on how to calculate Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle?

FIRST Step Consider the formula

SSD = V speed \cdot t reaction + \frac{{V speed}^{2}}{2 \cdot [g] \cdot f}

Next Step Substitute values of Variables

∴

SSD = 6.88m/s \cdot 10s + \frac{{6.88m/s}^{2}}{2 \cdot [g] \cdot 0.8467}

Next Step Substitute values of Constants

∴

SSD = 6.88m/s \cdot 10s + \frac{{6.88m/s}^{2}}{2 \cdot 9.8066m/s² \cdot 0.8467}

Next Step Prepare to Evaluate

∴

SSD = 6.88 \cdot 10 + \frac{{6.88}^{2}}{2 \cdot 9.8066 \cdot 0.8467}

Next Step Evaluate

∴

SSD = 71.6503398554141m

LAST Step Rounding Answer

∴

SSD = 71.6503m

Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle Formula Elements

Variables

Constants

Sight Stopping Distance

Sight Stopping Distance is the maximum distance a driver can see and stop before colliding with an object or pedestrian on the road ahead.

Symbol: SSD

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Sight Stopping Distance

Vehicle Speed

Vehicle Speed is the rate at which a vehicle travels and is used to calculate the distance a vehicle can travel before stopping.

Symbol: V_speed

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Vehicle Speed

Reaction Time

Reaction Time is the time taken by a driver to react to a situation and apply the brakes, affecting the total stopping distance of a vehicle.

Symbol: t_reaction

Measurement: TimeUnit: s

Note: Value should be greater than 0.

Formulas to find Reaction Time

Coefficient of Friction

Coefficient of Friction is a dimensionless value that characterizes the frictional force between two surfaces in contact, affecting the sight distance on a road.

Symbol: f

Measurement: NAUnit: Unitless

Note: Value should be less than 1.

Formulas to find Coefficient of Friction

Gravitational acceleration on Earth

Gravitational acceleration on Earth means that the velocity of an object in free fall will increase by 9.8 m/s2 every second.

Symbol: [g]

Value: 9.80665 m/s²

Other Formulas to find Sight Stopping Distance

Go Stopping Sight Distance given Lag Distance and Braking Distance

SSD = LD + l

Other formulas in Stopping Sight Distance category

Go Kinetic Energy of Vehicle at Design Speed

K.E = \frac{W \cdot {v vehicle}^{2}}{2 \cdot [g]}

Go Work Done against Friction in Stopping Vehicle

W vehicle = f \cdot W \cdot l

Go Braking Distance of Vehicle during Braking Operation

l = \frac{{v vehicle}^{2}}{2 \cdot [g] \cdot f}

Go Maximum Frictional Force Developed during Braking Operation of Vehicle

F = \frac{W \cdot {v vehicle}^{2}}{2 \cdot [g] \cdot l}

How to Evaluate Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle?

Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle evaluator uses Sight Stopping Distance = Vehicle Speed*Reaction Time+(Vehicle Speed^2)/(2*[g]*Coefficient of Friction) to evaluate the Sight Stopping Distance, Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle formula is defined as the total distance traversed by a vehicle from the point of spotting a hazard to the point of coming to a complete stop, taking into account the velocity of the vehicle and the reaction time of the driver. Sight Stopping Distance is denoted by SSD symbol.

How to evaluate Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle using this online evaluator? To use this online evaluator for Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle, enter Vehicle Speed (V_speed), Reaction Time (t_reaction) & Coefficient of Friction (f) and hit the calculate button.

FAQs on Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle

What is the formula to find Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle?

The formula of Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle is expressed as Sight Stopping Distance = Vehicle Speed*Reaction Time+(Vehicle Speed^2)/(2*[g]*Coefficient of Friction). Here is an example- 71.64967 = 6.88*10+(6.88^2)/(2*[g]*0.8467).

How to calculate Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle?

With Vehicle Speed (V_speed), Reaction Time (t_reaction) & Coefficient of Friction (f) we can find Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle using the formula - Sight Stopping Distance = Vehicle Speed*Reaction Time+(Vehicle Speed^2)/(2*[g]*Coefficient of Friction). This formula also uses Gravitational acceleration on Earth constant(s).

What are the other ways to Calculate Sight Stopping Distance?

Here are the different ways to Calculate Sight Stopping Distance-

Sight Stopping Distance=Lag Distance+Braking Distance

Can the Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle be negative?

No, the Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle, measured in Length cannot be negative.

Which unit is used to measure Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle?

Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle can be measured.

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Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle Formula

​GoStopping Sight Distance given Lag Distance and Braking Distance Formula

Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle Example

Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle Solution

Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle Formula Elements

Other Formulas to find Sight Stopping Distance

Other formulas in Stopping Sight Distance category

How to Evaluate Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle?

FAQs on Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle

Variable Name

GoStopping Sight Distance given Lag Distance and Braking Distance Formula