Braking Distance given Lag Distance and Stopping Sight Distance Calculator

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Sight Distance

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Stopping Sight Distance

Overtaking Sight Distance

✖Sight Stopping Distance represents the distance a vehicle will travel while the driver is reacting to something they see ahead.ⓘ Sight Stopping Distance [SSD]			+10% -10%
✖Lag Distance is the distance, a vehicle travels while the driver reacts to a hazard or applies the brakes.ⓘ Lag Distance [LD]			+10% -10%

✖Braking Distance is the distance travelled by the vehicle at the point where brake is applied to the point where it stops.ⓘ Braking Distance given Lag Distance and Stopping Sight Distance [l]

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Formula

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Braking Distance given Lag Distance and Stopping Sight Distance

Formula

`"l" = "SSD"-"LD"`

Example

`"26.7m"="61.4m"-"34.7m"`

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Braking Distance given Lag Distance and Stopping Sight Distance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Braking Distance = Sight Stopping Distance-Lag Distance
l = SSD-LD
This formula uses 3 Variables

Variables Used

Braking Distance - (Measured in Meter) - Braking Distance is the distance travelled by the vehicle at the point where brake is applied to the point where it stops.
Sight Stopping Distance - (Measured in Meter) - Sight Stopping Distance represents the distance a vehicle will travel while the driver is reacting to something they see ahead.
Lag Distance - (Measured in Meter) - Lag Distance is the distance, a vehicle travels while the driver reacts to a hazard or applies the brakes.

STEP 1: Convert Input(s) to Base Unit

Sight Stopping Distance: 61.4 Meter --> 61.4 Meter No Conversion Required
Lag Distance: 34.7 Meter --> 34.7 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

l = SSD-LD --> 61.4-34.7

Evaluating ... ...

l = 26.7

STEP 3: Convert Result to Output's Unit

26.7 Meter --> No Conversion Required

FINAL ANSWER

26.7 Meter <-- Braking Distance

(Calculation completed in 00.004 seconds)

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Created by Rahul

Dayanada Sagar college of Engineering (DSCE), banglore

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National Institute Of Technology (NIT), Hamirpur

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< 12 Stopping Sight Distance Calculators

Reaction Time given Stopping Sight Distance and Vehicle Velocity

Go Reaction Time = (Sight Stopping Distance-(Vehicle Speed^2)/(2*[g]*Coefficient of Friction))/Vehicle Speed

Stopping Sight Distance given Vehicle Velocity and Reaction Time of Vehicle

Go Sight Stopping Distance = Vehicle Speed*Reaction Time+(Vehicle Speed^2)/(2*[g]*Coefficient of Friction)

Maximum Frictional Force Developed during Braking Operation of Vehicle

Go Maximum Frictional Force = (Total Weight of Vehicle*Velocity^2)/(2*[g]*Braking Distance)

Weight of Vehicle given Kinetic Energy of Vehicle at Design Speed

Go Total Weight of Vehicle = (2*[g]*Maximum Frictional Force*Braking Distance)/Velocity^2

Velocity of Vehicle given Braking Distance after Braking Operation

Go Velocity = sqrt(2*[g]*Coefficient of Friction*Braking Distance)

Work Done against Friction in Stopping Vehicle

Go Work done against Friction = Coefficient of Friction*Total Weight of Vehicle*Braking Distance

Kinetic Energy of Vehicle at Design Speed

Go Kinetic Energy of Vehicle at Design Speed = (Total Weight of Vehicle*Velocity^2)/(2*[g])

Braking Distance of Vehicle during Braking Operation

Go Braking Distance = Velocity^2/(2*[g]*Coefficient of Friction)

Maximum Frictional Force given Kinetic Energy of Vehicle at Design Speed

Go Maximum Frictional Force = Kinetic Energy of Vehicle at Design Speed/Braking Distance

Stopping Sight Distance given Lag Distance and Braking Distance

Go Sight Stopping Distance = Lag Distance+Braking Distance

Lag Distance given Stopping Sight Distance and Braking Distance

Go Lag Distance = Sight Stopping Distance-Braking Distance

Braking Distance given Lag Distance and Stopping Sight Distance

Go Braking Distance = Sight Stopping Distance-Lag Distance

Braking Distance given Lag Distance and Stopping Sight Distance Formula

Braking Distance = Sight Stopping Distance-Lag Distance
l = SSD-LD

Braking Distance

Braking Distance represents the distance, a vehicle travels while coming to a complete stop after the brakes are applied.

Stopping Sight distance (SSD)

Stopping Sight distance represents the minimum distance required for a driver to bring their vehicle to a complete stop while reacting to an unexpected obstacle in the roadway.

How to Calculate Braking Distance given Lag Distance and Stopping Sight Distance?

Braking Distance given Lag Distance and Stopping Sight Distance calculator uses Braking Distance = Sight Stopping Distance-Lag Distance to calculate the Braking Distance, Braking Distance given Lag Distance and Stopping Sight Distance formula is defined as the difference of two components the Stopping Sight Distance and the Lag Distance. Braking Distance is denoted by l symbol.

How to calculate Braking Distance given Lag Distance and Stopping Sight Distance using this online calculator? To use this online calculator for Braking Distance given Lag Distance and Stopping Sight Distance, enter Sight Stopping Distance (SSD) & Lag Distance (LD) and hit the calculate button. Here is how the Braking Distance given Lag Distance and Stopping Sight Distance calculation can be explained with given input values -> 26.7 = 61.4-34.7.

FAQ

What is Braking Distance given Lag Distance and Stopping Sight Distance?

Braking Distance given Lag Distance and Stopping Sight Distance formula is defined as the difference of two components the Stopping Sight Distance and the Lag Distance and is represented as l = SSD-LD or Braking Distance = Sight Stopping Distance-Lag Distance. Sight Stopping Distance represents the distance a vehicle will travel while the driver is reacting to something they see ahead & Lag Distance is the distance, a vehicle travels while the driver reacts to a hazard or applies the brakes.

How to calculate Braking Distance given Lag Distance and Stopping Sight Distance?

Braking Distance given Lag Distance and Stopping Sight Distance formula is defined as the difference of two components the Stopping Sight Distance and the Lag Distance is calculated using Braking Distance = Sight Stopping Distance-Lag Distance. To calculate Braking Distance given Lag Distance and Stopping Sight Distance, you need Sight Stopping Distance (SSD) & Lag Distance (LD). With our tool, you need to enter the respective value for Sight Stopping Distance & Lag Distance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Braking Distance?

In this formula, Braking Distance uses Sight Stopping Distance & Lag Distance. We can use 1 other way(s) to calculate the same, which is/are as follows -

Braking Distance = Velocity^2/(2*[g]*Coefficient of Friction)

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