Velocity of Vehicle given Lag Distance or Reaction Distance Calculator

✖Lag distance is defined as the distance travelled by the vehicle before applying the break and after seeing the object.ⓘ Lag Distance [LD]			+10% -10%
✖Break Reaction Time is defined as time taken by the driver to apply the break.ⓘ Break Reaction Time [t]			+10% -10%

✖Speed of Slow moving vehicle is the speed of vehicle which has to be overtaken.ⓘ Velocity of Vehicle given Lag Distance or Reaction Distance [V_b]

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Formula

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Velocity of Vehicle given Lag Distance or Reaction Distance

Formula

`"V"_{"b"} = "LD"/"t"`

Example

`"11.08m/s"="27.7m"/"2.5s"`

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Download Sight Distances of Highway Formulas PDF

Velocity of Vehicle given Lag Distance or Reaction Distance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Speed of Slow moving vehicle = Lag Distance/Break Reaction Time
V_b = LD/t
This formula uses 3 Variables

Variables Used

Speed of Slow moving vehicle - (Measured in Meter per Second) - Speed of Slow moving vehicle is the speed of vehicle which has to be overtaken.
Lag Distance - (Measured in Meter) - Lag distance is defined as the distance travelled by the vehicle before applying the break and after seeing the object.
Break Reaction Time - (Measured in Second) - Break Reaction Time is defined as time taken by the driver to apply the break.

STEP 1: Convert Input(s) to Base Unit

Lag Distance: 27.7 Meter --> 27.7 Meter No Conversion Required
Break Reaction Time: 2.5 Second --> 2.5 Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V_b = LD/t --> 27.7/2.5

Evaluating ... ...

V_b = 11.08

STEP 3: Convert Result to Output's Unit

11.08 Meter per Second --> No Conversion Required

FINAL ANSWER

11.08 Meter per Second <-- Speed of Slow moving vehicle

(Calculation completed in 00.004 seconds)

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Credits

Created by Rithik Agrawal

National Institute of Technology Karnataka (NITK), Surathkal

Rithik Agrawal has created this Calculator and 1300+ more calculators!

Verified by Ishita Goyal

Meerut Institute of Engineering and Technology (MIET), Meerut

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< 4 Lag Distance Calculators

Velocity of Vehicle given Lag Distance or Reaction Distance

Go Speed of Slow moving vehicle = Lag Distance/Break Reaction Time

Reaction Time given Lag Distance or Reaction Distance

Go Break Reaction Time = Lag Distance/Speed of Slow moving vehicle

Lag Distance or Reaction Distance for Velocity

Go Lag Distance = Speed of Slow moving vehicle*Break Reaction Time

Lag Distance or Reaction Distance given Stopping Sight Distance

Go Lag Distance = Stopping Sight Distance-Breaking Distance

Velocity of Vehicle given Lag Distance or Reaction Distance Formula

Speed of Slow moving vehicle = Lag Distance/Break Reaction Time
V_b = LD/t

What is stopping sight distance?

Stopping sight distance (SSD) is the minimum sight distance available on a highway at any spot having sufficient length to enable the driver to stop a vehicle traveling at design speed, safely without collision with any other obstruction.

How to Calculate Velocity of Vehicle given Lag Distance or Reaction Distance?

Velocity of Vehicle given Lag Distance or Reaction Distance calculator uses Speed of Slow moving vehicle = Lag Distance/Break Reaction Time to calculate the Speed of Slow moving vehicle, Velocity of Vehicle given Lag Distance or Reaction Distance formula is defined as speed at which vehicle moves at road surface. Speed of Slow moving vehicle is denoted by V_b symbol.

How to calculate Velocity of Vehicle given Lag Distance or Reaction Distance using this online calculator? To use this online calculator for Velocity of Vehicle given Lag Distance or Reaction Distance, enter Lag Distance (LD) & Break Reaction Time (t) and hit the calculate button. Here is how the Velocity of Vehicle given Lag Distance or Reaction Distance calculation can be explained with given input values -> 11.08 = 27.7/2.5.

FAQ

What is Velocity of Vehicle given Lag Distance or Reaction Distance?

Velocity of Vehicle given Lag Distance or Reaction Distance formula is defined as speed at which vehicle moves at road surface and is represented as V_b = LD/t or Speed of Slow moving vehicle = Lag Distance/Break Reaction Time. Lag distance is defined as the distance travelled by the vehicle before applying the break and after seeing the object & Break Reaction Time is defined as time taken by the driver to apply the break.

How to calculate Velocity of Vehicle given Lag Distance or Reaction Distance?

Velocity of Vehicle given Lag Distance or Reaction Distance formula is defined as speed at which vehicle moves at road surface is calculated using Speed of Slow moving vehicle = Lag Distance/Break Reaction Time. To calculate Velocity of Vehicle given Lag Distance or Reaction Distance, you need Lag Distance (LD) & Break Reaction Time (t). With our tool, you need to enter the respective value for Lag Distance & Break Reaction Time and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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