Crashing Calculator

✖Crash Cost is the cost associated when the project is completed with the crash time of the project.ⓘ Crash Cost [CC]			+10% -10%
✖The Normal Cost is the cost associated when the project is completed within the normal time.ⓘ Normal Cost [NC]			+10% -10%
✖Normal time is the amount of time initially planned to complete the activity.ⓘ Normal Time [NT]			+10% -10%
✖Crash time is the amount of time that activity will take if the additional resources are expended.ⓘ Crash Time [CT]			+10% -10%

✖The Cost Slope is defined as the increase in the cost of the activity per unit decrease in the time.ⓘ Crashing [CS]

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Formula

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Crashing

Formula

`"CS" = ("CC"-"NC")/("NT"-"CT")`

Example

`"55"=("1400"-"300")/("129620s"-"129600s")`

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Crashing Solution

STEP 0: Pre-Calculation Summary

Formula Used

Cost Slope = (Crash Cost-Normal Cost)/(Normal Time-Crash Time)
CS = (CC-NC)/(NT-CT)
This formula uses 5 Variables

Variables Used

Cost Slope - The Cost Slope is defined as the increase in the cost of the activity per unit decrease in the time.
Crash Cost - Crash Cost is the cost associated when the project is completed with the crash time of the project.
Normal Cost - The Normal Cost is the cost associated when the project is completed within the normal time.
Normal Time - (Measured in Second) - Normal time is the amount of time initially planned to complete the activity.
Crash Time - (Measured in Second) - Crash time is the amount of time that activity will take if the additional resources are expended.

STEP 1: Convert Input(s) to Base Unit

Crash Cost: 1400 --> No Conversion Required
Normal Cost: 300 --> No Conversion Required
Normal Time: 129620 Second --> 129620 Second No Conversion Required
Crash Time: 129600 Second --> 129600 Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

CS = (CC-NC)/(NT-CT) --> (1400-300)/(129620-129600)

Evaluating ... ...

CS = 55

STEP 3: Convert Result to Output's Unit

55 --> No Conversion Required

FINAL ANSWER

55 <-- Cost Slope

(Calculation completed in 00.004 seconds)

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Credits

Created by Suman Ray Pramanik

Indian Institute of Technology (IIT), Kanpur

Suman Ray Pramanik has created this Calculator and 50+ more calculators!

Verified by Akshada Kulkarni

National Institute of Information Technology (NIIT), Neemrana

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< 12 Industrial Parameters Calculators

Binomial Distribution

Go Binomial Distribution = Number of Trials!*(Probability of Success of Single Trial^Specific Outcomes within Trials)*(Probability of Failure of Single Trial^(Number of Trials-Specific Outcomes within Trials))/(Specific Outcomes within Trials!*(Number of Trials-Specific Outcomes within Trials)!)

Normal Distribution

Go Normal Distribution = e^(-(Specific Outcomes within Trials-Mean of Distribution)^2/(2*Standard Deviation of distribution^2))/(Standard Deviation of distribution*sqrt(2*pi))

Learning Factor

Go Learning Factor = (log10(Time for Task 1)-log10(Time for n Tasks))/log10(Number of Tasks)

Poisson Distribution

Go Poisson Distribution = Mean of Distribution^(Specific Outcomes within Trials)*e^(-Mean of Distribution)/(Specific Outcomes within Trials!)

Annual Devaluation Rate

Go Annual Devaluation Rate = (Rate of Return Foreign Currency-Rate of Return USD)/(1+Rate of Return USD)

Crashing

Go Cost Slope = (Crash Cost-Normal Cost)/(Normal Time-Crash Time)

Forecasting Error

Go Forecasting Error = Observed Value at Time t-Smooth Averaged Forecast for Period t

Macroscopic Traffic Density

Go Traffic Density in vpm = Hourly Flow Rate in vph/(Avg. Travel Speed/0.277778)

General Sewing Data

Go GSD = (Man Power*Work Hours)/Target

Traffic Intensity

Go Traffic Intensity = Mean Arrival Rate/Mean Service Rate

Variance

Go Variance = ((Pessimistic Time-Optimistic Time)/6)^2

Reorder Point

Go Reorder Point = Lead Time Demand+Safety Stock

Crashing Formula

Cost Slope = (Crash Cost-Normal Cost)/(Normal Time-Crash Time)
CS = (CC-NC)/(NT-CT)

What is Crashing?

Conducting a crash program usually results in an increase in the cost of those activities that are constructed under the crash program. In order to keep the total increase in cost to a minimum, it is necessary to crush those activities which permit a reduction in construction time at the least total increase in cost. The reduction in time for a project can be achieved by reducing the duration of one or more activities lying on the critical path.

What is Cost slope?

The cost slope of an activity is the increase in the cost of activity by reducing the duration by one unit. The cost slope concept helps in finding the lowest cost solution by sequential compressing the activities having the lowest cost slope, i.e., having the lowest incremental cost, on the critical path.

How to Calculate Crashing?

Crashing calculator uses Cost Slope = (Crash Cost-Normal Cost)/(Normal Time-Crash Time) to calculate the Cost Slope, Crashing usually result in an increase in the cost of those activities that are constructed under the crash programme. Cost Slope is denoted by CS symbol.

How to calculate Crashing using this online calculator? To use this online calculator for Crashing, enter Crash Cost (CC), Normal Cost (NC), Normal Time (NT) & Crash Time (CT) and hit the calculate button. Here is how the Crashing calculation can be explained with given input values -> 0.008488 = (1400-300)/(129620-129600).

FAQ

What is Crashing?

Crashing usually result in an increase in the cost of those activities that are constructed under the crash programme and is represented as CS = (CC-NC)/(NT-CT) or Cost Slope = (Crash Cost-Normal Cost)/(Normal Time-Crash Time). Crash Cost is the cost associated when the project is completed with the crash time of the project, The Normal Cost is the cost associated when the project is completed within the normal time, Normal time is the amount of time initially planned to complete the activity & Crash time is the amount of time that activity will take if the additional resources are expended.

How to calculate Crashing?

Crashing usually result in an increase in the cost of those activities that are constructed under the crash programme is calculated using Cost Slope = (Crash Cost-Normal Cost)/(Normal Time-Crash Time). To calculate Crashing, you need Crash Cost (CC), Normal Cost (NC), Normal Time (NT) & Crash Time (CT). With our tool, you need to enter the respective value for Crash Cost, Normal Cost, Normal Time & Crash 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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