Lag Distance or Reaction Distance given Stopping Sight Distance Calculator

✖Stopping Sight Distance is defined as distance provided on the road before a sharp turn.ⓘ Stopping Sight Distance [SSD]			+10% -10%
✖Breaking distance is defined as the distance traveled after applying brake till the vehicle stops.ⓘ Breaking Distance [BD]			+10% -10%

✖Lag distance is defined as the distance travelled by the vehicle before applying the break and after seeing the object.ⓘ Lag Distance or Reaction Distance given Stopping Sight Distance [LD]

⎘ Copy

👎

Formula

✖

Lag Distance or Reaction Distance given Stopping Sight Distance

Formula

`"LD" = "SSD"-"BD"`

Example

`"120m"="160m"-"40m"`

Calculator

LaTeX

Reset

👍

Download Sight Distances of Highway Formulas PDF

Lag Distance or Reaction Distance given Stopping Sight Distance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Lag Distance = Stopping Sight Distance-Breaking Distance
LD = SSD-BD
This formula uses 3 Variables

Variables Used

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.
Stopping Sight Distance - (Measured in Meter) - Stopping Sight Distance is defined as distance provided on the road before a sharp turn.
Breaking Distance - (Measured in Meter) - Breaking distance is defined as the distance traveled after applying brake till the vehicle stops.

STEP 1: Convert Input(s) to Base Unit

Stopping Sight Distance: 160 Meter --> 160 Meter No Conversion Required
Breaking Distance: 40 Meter --> 40 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

LD = SSD-BD --> 160-40

Evaluating ... ...

LD = 120

STEP 3: Convert Result to Output's Unit

120 Meter --> No Conversion Required

FINAL ANSWER

120 Meter <-- Lag Distance

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Civil » Transportation Engineering » Highway Engineering » Sight Distances of Highway » SSD » Lag Distance » Lag Distance or Reaction Distance given Stopping Sight Distance

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

Ishita Goyal has verified this Calculator and 2600+ more calculators!

< 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

Lag Distance or Reaction Distance given Stopping Sight Distance Formula

Lag Distance = Stopping Sight Distance-Breaking Distance
LD = SSD-BD

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 Lag Distance or Reaction Distance given Stopping Sight Distance?

Lag Distance or Reaction Distance given Stopping Sight Distance calculator uses Lag Distance = Stopping Sight Distance-Breaking Distance to calculate the Lag Distance, Lag Distance or Reaction Distance given Stopping Sight Distance formula is defined as distance travelled by vehicle after seeing object and before applying brake. Lag Distance is denoted by LD symbol.

How to calculate Lag Distance or Reaction Distance given Stopping Sight Distance using this online calculator? To use this online calculator for Lag Distance or Reaction Distance given Stopping Sight Distance, enter Stopping Sight Distance (SSD) & Breaking Distance (BD) and hit the calculate button. Here is how the Lag Distance or Reaction Distance given Stopping Sight Distance calculation can be explained with given input values -> 120 = 160-40.

FAQ

What is Lag Distance or Reaction Distance given Stopping Sight Distance?

Lag Distance or Reaction Distance given Stopping Sight Distance formula is defined as distance travelled by vehicle after seeing object and before applying brake and is represented as LD = SSD-BD or Lag Distance = Stopping Sight Distance-Breaking Distance. Stopping Sight Distance is defined as distance provided on the road before a sharp turn & Breaking distance is defined as the distance traveled after applying brake till the vehicle stops.

How to calculate Lag Distance or Reaction Distance given Stopping Sight Distance?

Lag Distance or Reaction Distance given Stopping Sight Distance formula is defined as distance travelled by vehicle after seeing object and before applying brake is calculated using Lag Distance = Stopping Sight Distance-Breaking Distance. To calculate Lag Distance or Reaction Distance given Stopping Sight Distance, you need Stopping Sight Distance (SSD) & Breaking Distance (BD). With our tool, you need to enter the respective value for Stopping Sight Distance & Breaking 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 Lag Distance?

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

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

Home

FREE PDFs

🔍 Search