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A short class with Sarah and her students. The other ways are under More.
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Today, we’re introducing off-highway trucks. Can anyone explain why these trucks are termed ‘off-highway’?
They’re not allowed on public roads?
Exactly! They’re designed for specific environments like construction sites and quarries. What features do you think make them suitable for those environments?
Maybe they're built to handle rough terrains?
Right! They often have robust builds and powerful engines. Let’s remember that these attributes justify their high operational costs.
What’s the average cost for one of these trucks?
Good question! For example, the initial cost can be around 3 crores. This cost allows for advanced features suitable for their tasks.
Now, let’s discuss how we estimate the costs associated with these trucks. Who can name one of the methods?
Is one of them the Caterpillar method?
Yes! The Caterpillar method is one, and it focuses on ownership and operational costs. Can you recall the main components we cover in such estimations?
We look at depreciation, operating wages, and maintenance costs.
Great! Understanding these components helps break down the total cost into manageable hourly rates.
Let’s calculate the depreciation for our off-highway truck using the Caterpillar method. Who can remind us how to find depreciation?
We should use the formula: (Initial price - Tire cost) / Useful life.
Correct! With an initial price of 3 crores and a tire cost of 11 lakhs, based on a useful life of 12.5 years, what’s our depreciation?
It’s around 2.31 million per year!
Right! Now, converting that into an hourly rate gives us...
About 1445 rupees per hour?
Exactly! This is crucial for budgeting.
Let’s move to operating costs. What are some of the key components included here?
Fuel consumption and maintenance costs?
Right! The fuel cost is derived from the formula considering consumption per horsepower. Can someone break this down?
It’s 0.09 liters per horsepower per hour, right?
Yes! And if the engine is 250 horsepower, that gives...
Approximately 1462.50 rupees per hour for fuel!
Exactly! When we sum all operating costs, it’s vital to include these calculations for accurate budgeting in projects.
Heavy vehicles designed for use at construction or mining sites, not allowed on highways.
Methods for determining ownership and operating costs to inform budgeting.
Costs associated with the reduction in value of equipment over time, calculated based on usage.
Include fuel, maintenance, and labor expenses.
Off-highway truck, built to withstand, rough terrains and heavy loads, guiding each hand.
Once, a mighty off-highway truck named Rocky roamed the construction site, never straying onto the paved roads, proving to all that strength thrives off the beaten path.
To remember the components of ownership costs: D.I.T. - Depreciation, Insurance, Taxes.
O.C.E.A.N. - Ownership Costs Include: Depreciation, Operating Costs, Equipment Maintenance, and Insurance.
Term
Off Highway Truck
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Term
Depreciation
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Term
Ownership Costs
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Term
Operating Costs
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Heavy equipment designed for off-road operations, primarily used in construction and mining tasks.
Reduction in the value of an asset over time, often calculated based on the initial value, useful life, and salvage value.
Expenses incurred in owning equipment, including depreciation, insurance, interest, and taxes.
Costs associated with running equipment, including fuel, maintenance, and labor.
This section introduces off-highway trucks, their cost estimation methods, and essential operational details.
The segment covers the characteristics and estimation of costs associated with off-highway trucks, discussing ownership and operating costs while adhering to Peurifoy guidelines. It highlights the calculations for depreciation, maintenance, and various operational parameters that affect overall expenses.
In this section, we delve into the particulars of off-highway trucks, which are specifically designed for construction or mining projects and are not allowed on public roads. We explore how to estimate the cost of such equipment based on ownership and operating costs, following the Peurifoy guidelines. Key financial figures include an initial purchase cost of 3 crores and additional costs for tires, fuel consumption, and operational wages. The methodologies presented for calculating costs encompass the Caterpillar and Peurifoy methods, focusing on depreciation, repair costs, and usage metrics, such as the expected lifetime of the machine and running hours. By outlining how to break down these costs into hourly rates, the section fundamentally illustrates the economic aspects of managing heavy machinery in engineering contexts.