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Successes and Failures
H. Donald Ratliff
Executive Director
Regents & UPS Professor [email protected]
President & CEO [email protected]
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Copyright April 2002 – H. Donald Ratliff
INFORMS
The Successes and Failures of E-Logistics
H. Donald Ratliff
Regents & UPS Professor of Industrial & Systems Engineering; Executive Director of the Logistics Institute Georgia Institute of Technology
President and CEO, Velant, Inc.
The Internet is revolutionizing the process and economics of logistics. Twenty years ago, the personal computer launched a new generation of logistics technology based primarily on a decentralized planning model. It empowered sophisticated users to make better decisions by giving them flexible modeling
capability, a graphical interface and a moderate amount of computing power. Client-server computers added an element of connectivity that allowed automation of internal company transactions but did little to change decision technology or interactions between companies. E-logistics--the next generation of logistics
technology--will be based on a centralized computing model driven by networked computing. In this session, Ratliff will discuss the evolution of this new model, the successes and failures to date, and the technical and operational issues that must be overcome.
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Internet-Centric Computing
A network of networks
z Public & private z Wired & wireless
Easy access
Computer horsepower
Location neutral
Carrier Vendor DC Plant Store Colocation Center Service Center4
Copyright April 2002 – H. Donald Ratliff
E-Logistics Technology Matrix
B to B B to C C to C Internally integrated Accounting Execute Transactions Shared dynamic Internal dynamic Internal static Monitor Status Mainframe 1960s Centralized Collaborative Hybrid Distributed Interactive Planning& Analysis Internet-Centric 2000s Client-Server 1990s PC 1980s
Transportation Planning
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Transportation Planning
$500,000,000,000 annual US truck transportation spend
(3,000,000+ trucks)
Shipper/Carrier
Transaction Automation
Fleet Optimization
loads, routes, schedules
Fleet
Opt
Mode
Opt
2/3 Dedicated
Fleets
1/3 Commercial
Carriers
In the US there is as much money spent each year on truck transportation than on the combination of warehousing, inventory, and all other forms of transportation
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Copyright April 2002 – H. Donald Ratliff
Transportation Planning
Network Design
Facility location & sizing
Channel definition
Strategic Procurement
Capacity planning
Carrier bid optimization
Optimization
Shipment consolidation
Load planning & scheduling
Mode selection
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Transportation Planning
Network Design
Optimization
Strategic Procurement
Facility location & sizing
Channel definition
Capacity planning
Carrier bid optimization
Shipment consolidation
Load planning & scheduling
Mode selection
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Copyright April 2002 – H. Donald Ratliff
Supply Chain “Design” Software
Network Optimization Models
Models
z High level z Product “flows” z Time “buckets” z Linear costAlgorithms
z LP/IP z Pretty fastEffective with “super-users”
Customer demand Transport cost Transport cost Plant capacity Plant cost DC capacity DC cost
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Copyright April 2002 – H. Donald Ratliff
SC Design Software
Current Offerings
z CAPS Logistics z I2 z Insight z Logic ToolsSolver engines
z ILOG - CPLEX z Dash – Xpress MP z CustomFuture
z Requires high modeling expertise z Not much change
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Transportation Network Design
Pooling networks
zPool points zUPS facility zPostal facility zLTL hubCross-docking networks
zFocus on LTL shipments zCross-docks are shippercontrolled
Origins Destinations
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Copyright April 2002 – H. Donald Ratliff
sort receiving shipping
Cross-Docks
No “planned” inventory
z Unload, sort, stage, load
Examples
z Inbound for retail
z Wal-Mart z Home Depot
z LTL and package delivery
z UPS z Yellow Freight z New cars z Ford
Operation
z Schedule-driven z Load-driven13
Design Difficulties
Origin to destination zTL zLTL zMulti-stop route Origin to cross-dock zTL zLTL zMulti-stop route Cross-dock to destination zTL zLTL zMulti-stop route Routing is difficult zStatic zDynamicSupply chain design models don’t work!!!
zCost are very nonlinear zFlows are dependent zVolume is critical
Origins
Cross-docks
Technology Inadequate!!!
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Copyright April 2002 – H. Donald Ratliff
Network Design
Transportation Planning
Optimization
Strategic Procurement
Facility location & sizing
Channel definition
Capacity planning
Carrier bid optimization
Shipment consolidation
Load planning & scheduling
Mode selection
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Bid Optimization
Red – all or nothing
Software
zCAPS Logistics
zI2
Managed service
zLogistics.com
Bid opportunities
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Copyright April 2002 – H. Donald Ratliff
Network Design
Transportation Planning
Optimization
Strategic Procurement
Facility location & sizing
Channel definition
Capacity planning
Carrier bid optimization
Shipment consolidation
Load planning & scheduling
Mode selection
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Transportation Optimization
Loading A C D B Routing & schedulingA B
A ? B
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Copyright April 2002 – H. Donald Ratliff
Mode Optimization Versus Fleet
Optimization
Mode optimization
zCreate routes from LTL
shipments
zTender routes only if less
cost than LTL
zLane based costs zInvolves an external
transaction
Fleet optimization
zAll shipments must be taken zCost based on dedicated
truck
zDriver
zEquipment
zNo external transaction
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Current Technology
Visual algorithms
Requires smart planner
Poor quality
Greedy algorithms
Requires super-user
Marginal quality
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Copyright April 2002 – H. Donald Ratliff
Why is transportation optimization
hard?
Huge number of possibilities
Complex constraints
zLoading
zDelivery windows
zDOT
zCompatibility
Dynamic requirements
Large amounts of data
Changing service levels
Min E {Σ cx} Ax = b
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be overcome?
Transportation
Management
Center
Client
Systems
OrdersExecutive
Order/Asset
Visibility
Field
Operations
Loads Routes Schedules Status Status Analysis & Simulations Optimized Transportation Plan22
Copyright April 2002 – H. Donald Ratliff
Transportation Management
Center
Optimization engines are the key to success!
Workflow Manager (On-line Execution)
Design and Analysis Manager (Off-line Simulation)
• Goals
• Constraints • Rules
Business
Models • Support• Automation
• Loads • Routes • Schedules Results Optimization Engines Data • Orders • Customers • Assets • Roads • Status • History Exception Handling Continuous improvement Step improvement
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Optimization Providers
X Software X X X X Software X X X XSoftware Service Service Service
Manugistics G-Log I2 X X X Velant X Logistics.com CAPS UPS-Roadnet Descartes Hybrid Mode Optimization Fleet Planning
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Copyright April 2002 – H. Donald Ratliff
Collaboration
Levels of collaboration
zShare data zStatus zShare plans zFuture availability zFuture requirements zJointly plan zShare assets zShare capacityJoint planning technology
zInteractive planning
zMore people zMore time
zQuestionable value
zComposite planning
zCombine independent plans
zAutomated collaboration
zDifficult to create zDifficult to maintain
Network Effects
Capacity sharing
z Visibility z Collaboration z OptimizationSolution providers
z Elogex z Logistics.com z Nistevo z VelantLimited success
Private Fleet - Backhaul
Commercial Carrier – Continuous Move
Copyright April 2002 – H. Donald Ratliff 0 2 4 6 8 10 12 Day Trucks Required ATL CHI DAL DET KC LA NY SF
Workload Imbalance
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Transportation Exchanges “Vision”
Sell unused capacity
z Workload imbalance z Backhauls
z Partial loads
Bring together shippers and carriers
z Many small carriers z Many small shippers
Reduce cost
z Brokers fees 13%
z Increase competition - auctions
Leverage information
Exchange
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Copyright April 2002 – H. Donald Ratliff
Transportation Exchanges
More than 100 startups
Most are gone
z Spot market small z Too many players z Too little experience z Weak technology
Survivors
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What about the future?
Network design
zBetter cross-dock planning technology zProblems are really hard
Strategic procurement
zMostly automation
zOptimization is too hard for carriers
Optimization
zTransportation management centers zNew generation of technology
Trends
zCentralized optimization zOptimization outsourcing zLimited collaboration
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Copyright April 2002 – H. Donald Ratliff