transportation, warehousing and inventory decisions
TRANSCRIPT
TRANSPORTATION, WAREHOUSING AND INVENTORY DECISIONS Submitted By:
Vivek Kumar (98)Yogesh (99)
Zeba Khan (100)Rasmi (704)
Shivani (705)
TRANSPORTATION
“The process of moving an item from point A to point B”.
“Safe, efficient, reliable and sustainable movement of persons and goods over time and space”
Transportation in Logistics The operation of transportation
determines the efficiency of moving products.
The progress in techniques and management principles improves the moving load, delivery speed, service quality, operation costs, the usages of facilities and energy saving.
Transportation takes a crucial part in the Logistics Operations.
Importance of Transportation
Without well-developed transportation systems, logistics could not bring its advantages into full play.
A well operated logistics systems could increase both the competitiveness of the government and enterprises.
Transportation system is the most important economic activity among the components of business logistics systems.
Transportation Functionality Product Movement Product Storage
Product Movement Temporal: Product is locked up during transit, hence inaccessible. Financial:Administration costs, salaries, Maintenance costs expended. Environmental:Fuel costs are high (creates air pollution, congestion, Noise pollution)
Product Storage
When unloading and loading is more expensive then storage
When storage space is limited (situation when inventory levels are high)
Types of Transportation Rail Transportation Road Transportation Water Transportation Air transportation+
Types of Transportation Rail Transport :Advantages It is convenient mode of transport for travelling
long distances. It’s operation is less affected by adverse weather
condition like rains, fog etc.Disadvantages It is not available in remote part of the country. It involves heavy losses of life as well as goods in
case of accident.
Road Transport:Advantages It is relatively cheaper mode of transportation as
compared to other modes. It is flexible mode of transportation as loading
and uploading is possible at any destinationDisadvantages Due to limited carrying capacity, road transport
is not economical for long distance transportation of goods.
Water Transport:Advantages It promotes international trades. The cost of maintaining and constructing routes
is very low most of them are naturally made Disadvantages It is a slow moving mode of transport so it is not
suitable for perishable goods. It is adversely affected by weather conditions.
Air Transport:Advantages It is fastest mode of transport. It is the most convenient mode of transport
during natural calamitiesDisadvantages It is relatively more expensive mode of transport. It isn't suitable for short distance travel.
Current Transportation Problems
Financing Congestion Infrastructure Safety Population Increased truck weights
Conclusion Transportation contributes the highest
cost among the related elements in logistics systems, the improvement of transport efficiency could change the overall performance of a logistics systems.
Transportation plays an important role in logistics system and its activities appear in various sections of logistics processes.
WAREHOUSING
DEFINITION Warehousing refers to the activities
involving storage of goods on a large-scale in a systematic and orderly manner and making them available conveniently when needed.
Means holding or preserving goods in huge quantities from the time of their purchase or production till their actual use or sale.
Creates time utility by bridging the time gap between production and consumption of goods
CONCEPT Term “Warehousing” is referred as
transportation at zero miles per hour
Warehousing provides time and place utility for raw materials, industrial goods, and finished products, allowing firms to use customer service as a dynamic value-adding competitive tool.
THE ROLE OF THE WAREHOUSE IN THE LOGISTICS SYSTEM
The warehouse is where the supply chain holds or stores goods.
Functions of warehousing include› Transportation consolidation› Product mixing› Docking› Service› Protection against contingencies
OBJECTIVES OF EFFICIENT WAREHOUSE OPERATIONS
• Provide timely customer service.• Keep track of items so they can be found
readily & correctly.• Minimize the total physical effort & thus the
cost of moving goods into & out of storage.• Provide communication links with customers
Benefits of Warehouse Management› Provide a place to store & protect inventory› Reduce transportation costs› Improve customer service levels
Complexity of warehouse operation depends on the number of SKUs handled & the number of orders received & filled.
Most activity in a warehouse is material handling.
WAREHOUSE ACTIVITIES Receive goods Identify the goods Dispatch goods to storage Hold goods• Pick goods• Marshal shipment• Dispatch shipment• Operate an information
system
• Accepts goods from‒ Outside transportation or attached
factory & accepts responsibility • Check the goods against an order & the bill
of loading• Check the quantities• Check for damage & fill out damage
reports if necessary• Inspect goods if required
Receive goods
‒ items are identified with the appropriate stock-keeping unit (SKU) number (part number) & the quantity received recorded
Identify the goods
Dispatch goods to storage‒ goods are sorted & put away
Hold goods‒ goods are kept in storage & under proper
protection until needed
Pick goods‒ items required from stock must be
selected from storage & brought to a marshalling area
Marshal the shipment‒ goods making up a single order are brought
together & checked for omissions or errors; order records are updated
Dispatch the shipment‒ orders are packaged, shipping documents
are prepared, & goods loaded on the vehicle
Operate an information system‒ a record must be maintained for each
item in stock showing the quantity on hand, quantity received, quantity issued, & location in the warehouse
TYPES OF WAREHOUSESPRIVATE
WAREHOUSESPUBLIC
WAREHOUSES
GOVERNMENT WAREHUOSES
CO-OPERATIVE WAREHOUSES
BONDED WAREHOUSES
DISRIBUTION CENTERS OR
WAREHOUSES
EXPORT AND IMPORT
CLIMATE – CONTROLLED
1. PRIVATE HOUSES OPERATED by a company for shipping and
storing its own products OWNED AND MANAGED- manufacturers or
traders CONSTRUCTION- Farmers near their fields,
Wholesalers and Retailers near their business centre's and Manufacturers near their factories
COMPANIES – Stable inventory levels and long run expectations
SUITABILITY- Firms that require special handling and storage features and want to control design and operation of the warehouse
2. PUBLIC WAREHOUSES Provide storage and physical distribution services on
rental basis Used by SMALL FIRMS and LARGE FIRMS Organizes to provide storage facilities to traders,
manufacturers, agriculturists in return for a storage charge
Licensed by Govt. In India OWNED and OPERATED – Central Warehousing
Corporation and State Warehousing Corporation SUITABILTY – seasonal production or low volume
storage needs, companies with inventories maintained in many locations, firms entering new markets
OWNER –stands as an agent of goods
3. GOVERNMENT WAREHOUSES OWNED, MANAGED AND CONTROLLED -Central or
State Governments or public corporations or local authorities
EXAMPLES- Central Warehousing Corporation of India, State Warehousing Corporation and Food Corporation of India
If customer cannot pay rent within specified time authority can recover rent disposing of goods4. CO-OPERATIVE WAREHOUSES
• Owned, Managed and Controlled – Co-operative societies
• Facilities at most economical rates to members• Located-Punjab, Karnataka, Maharashtra and
Andhra
5. BONDED WAREHOUSES Licensed to accept imported goods for storage before payment of
customs duty Imported merchandise is stored and released only after payment
of appropriate taxes Cigarettes, Liquor, Other products are stored Owned and Operated – PORT TRUSTS Acts in two capacities viz LANDLORD and BAILEE OF GOODS As landlord provides storage facilities on rent As bailee of goods take reasonable care to handle and store goods
as it has lien on goods under care for charges of its services Owner can sell goods wholly or in part by endorsing a warrant Facilitate enterpot trade- importer need not pay the import duty
6. DISTRIBUTION CENTERS / WAREHOUSES
Designed to move goods Large and highly automated Receive goods from various plants and
suppliers, take orders, fill them efficiently deliver to customers quickly
Located near the market owned or leased by manufacturers
Access to transport networks
7. EXPORT AND IMPORT WAREHOUSES LOCATION –near ports where international
trade is undertaken Storage facilities for goods awaiting
onward movements Facilities- packaging , inspection, marking
etc8. CLIMATE-CONTROLLED WAREHOUSE Handle storage of many products
including need special handling conditions
Freezers for frozen products, humidity controlled environment for delicate products, produce or flowers, etc
INVENTORY MANAGEMENT
What is inventory management
Inventory is the raw materials, component parts, work-in-process, or finished products that are held at a location in the supply chain.
The objective of inventory management is to strike a balance between inventory investment and customer service.
Inventory Terms Lead time: time interval between ordering and
receiving the order Holding (carrying) costs: cost to carry an item in
inventory for a length of time, usually a year (heat, light, rent, security, deterioration, spoilage, breakage, depreciation, opportunity cost,…, etc.,)
Ordering costs: costs of ordering and receiving inventory (shipping cost, cost of preparing how much is needed, preparing invoices, cost of inspecting goods upon arrival for quality and quantity, moving the goods to temporary storage)
Shortage costs: costs when demand exceeds supply (the opportunity cost of not making a sale, loss of customer goodwill, late charges, the cost of lost of production or downtime)
Objectives of Inventory Management
Provide acceptable level of customer service (on-time delivery)
Allow cost-efficient operations Minimize inventory investment
Functions of Inventory To meet anticipated demand To smooth production requirements To decouple operations To protect against stock-outs To take advantage of order cycles To help hedge against price increases To permit operations To take advantage of quantity discounts
Effective Inventory Management
To be effective, management must have the following:
A system to keep track of inventory on hand and on order
A reliable forecast of demand Knowledge of lead times and its variability Reasonable estimates of:
› Inventory Holding (carrying) costs› Ordering costs› Shortage costs
A classification system for inventory items
Types of Inventory:How Inventory is Used
Anticipation or seasonal inventory Safety stock: buffer demand fluctuations Lot-size or cycle stock: take advantage of
quantity discounts or purchasing efficiencies
Pipeline or transportation inventory Speculative or hedge inventory protects
against some future event, e.g. labor strike Maintenance, repair, and operating (MRO)
inventories
Inventory Counting Systems Periodic System
Physical count of items made at periodic intervals
Perpetual (continual) Inventory System System that keeps track of removals from inventory continuously, thus monitoringcurrent levels of each item.
Classification system An important aspect of inventory management is
that items held in inventory are not of equal importance in terms of dollar invested, profit potential, sales or usage volume, or stockout penalties. For instance, a producer of electrical equipment might have electric generators, coils of wire, and miscellaneous nuts and bolts among items carried in inventory. It would be unrealistic to devote equal attention to each of these items. Instead, a more reasonable approach would allocate control efforts according to the relative importance of various items in inventory. This approach is called A-B-C classification approach
ABC Classification SystemClassifying inventory according to some measure of importance and allocating control efforts accordingly.A - very importantB – moderate importantC - least important
Annual $ value of items
AB
C
High
LowFew
ManyNumber of Items
Models of inventory
Economic Order Quantity ModelsThe question of how much to order is
frequently determined by using an Economic Order Quantity (EOQ) model. EOQ models identify the optimal order quantity by minimizing the sum of certain annual costs that vary with order size. Three order size models are described:
The basic economic order quantity model The economic production quantity model The quantity discount model
Economic Order Quantity (EOQ) modelAssumptions of EOQ Model1. Only one product is involved2. Annual demand requirements are
known3. Demand is even throughout the year4. Lead time does not vary5. Each order is received in a single
delivery6. There are no quantity discounts
EOQ Model inventory cycle The inventory cycle begins with receipt of an
order of Q units, which are withdrawn at a constant rate over time. When the quantity on hand is just sufficient to satisfy demand during lead time, an order for Q units is submitted to the supplier. Because it is assumed that both the usage rate and lead time don’t vary, the order will be received at the precise instant that the inventory on hand falls to zero. Thus, orders are timed to avoid both excess and stockouts (i.e., running out of stock). The following figure illustrate this idea.
The Inventory CycleFigure 11.2
Profile of Inventory Level Over Time
Quantityon hand
Q
Receive order
Placeorder
Receive order
Placeorder
Receive order
Lead time
Reorderpoint
Usage rate
Time
Economic Production Quantity (EPQ)
Production done in batches or lots Capacity to produce a part exceeds
the part’s usage or demand rate Assumptions of EPQ are similar to
EOQ except orders are received incrementally during production
Economic Production Quantity Assumptions
Only one item is involved Annual demand is known Usage rate is constant Usage occurs continually, but production
occurs periodically Production rate is constant Lead time does not vary No quantity discounts
Quantity discount model Quantity discounts are price reductions for large
orders offered to customers to induce them to buy in large quantities. In this case the price per unit decreases as order quantity increases.
If the quantity discounts are offered, the buyer must weigh the potential benefits of reduced purchase price and fewer orders that will result from buying in large quantities against the increase in carrying cost caused by higher average inventories.
The buyer’s goal with quantity discounts is to select the order quantity that will minimize the total cost, where the total cost is the sum of carrying cost, ordering cost, and purchasing (i.e., product) cost.
Total Costs with Purchasing CostAnnualcarryingcost
PurchasingcostTC = +
Q2H D
QSTC = +
+Annualorderingcost
PD +Where P is the unit price.Recall that in the basic EOQ model, determination of order size doesn’t involve the purchasing cost. The rationale for not including unit price is that under the assumption of no quantity discounts, price per unit is the same for all order size. The inclusion of the unit price in the total cost computation in that case would merely increase the total cost by the amount P times the demand (D). See the following graph.
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