1/157
Looks like no tags are added yet.
Import and export flows
International goods movements that generate transportation demand and influence routes, capacity, and infrastructure.
Economic basis for trade
Regions specialize according to differences in resources, skills, and costs, then trade when delivered costs make it worthwhile.
Comparative advantage
Producing something at a lower opportunity cost than another producer; supports specialization and trade.
Inherent advantage
A mode's built-in strength compared with another, such as air's speed or trucking's accessibility.
Trade restrictions
Tariffs, quotas, and other barriers can raise costs, reduce trade, or change sourcing and transportation routes.
Trade agreements
Reduced trade barriers can increase trade flows and transportation demand.
Technology game changers
AI, robotics, containerization, digital tracking, 3D printing, automation, and driverless vehicles.
Evolution of logistics
Physical distribution → integrated inbound/outbound logistics → coordination across the entire supply chain.
Integrated supply chain
Coordination of product, information, and financial flows across functions and companies.
Proper level of optimality
Optimize the whole supply chain rather than minimizing one activity's cost.
Total logistics cost
Combined transportation, inventory, warehousing, handling, and related costs at a chosen service level.
Logistics as an interface
Connects production with marketing by delivering inputs and finished products where and when needed.
Time utility
Value created by making goods available when needed.
Place utility
Value created by making goods available where needed.
Form utility
Value from turning inputs into useful products; transportation supports it indirectly.
Derived demand
Transportation demand arises from demand for other goods, services, or activities.
Economic activity and transportation
More production, trade, and consumption generally increase transportation demand.
Transportation output
Measured through both volume/distance and customer service.
Ton-mile
One ton of freight moved one mile; tons × miles.
Passenger-mile
One passenger moved one mile.
Price elasticity of demand
Responsiveness of quantity demanded to price; percentage change in quantity ÷ percentage change in price.
Elastic demand
Quantity changes proportionally more than price; absolute elasticity exceeds 1.
Inelastic demand
Quantity changes proportionally less than price; absolute elasticity is below 1.
Primary influence on price elasticity
Availability of practical substitutes or competitors.
Aggregate versus carrier demand
Total transportation demand is often relatively inelastic; demand for one carrier may be more elastic because customers can switch.
Service elasticity of demand
Responsiveness of demand to changes in service quality, such as speed or reliability.
Perishable transportation capacity
Unused service capacity cannot be stored; an empty seat's selling opportunity disappears when the flight departs.
Mobility rights
The freedom and practical ability to move and access opportunities.
Node
A supply chain location, such as a factory, warehouse, port, terminal, or store.
Link
A connection between nodes; examples include transportation, communication, and financial connections.
Landed cost
Total cost of getting a product to the buyer, including production, transportation, handling, tariffs, and duties.
Landed cost and market reach
Lower landed cost expands the area where a seller can compete; higher landed cost limits it.
Load factor
Percentage of available capacity used; used capacity ÷ available capacity × 100.
Load factor effects
Higher utilization can improve efficiency, productivity, and margins, but excessive utilization reduces flexibility.
Cost-of-service pricing
Rates based on the carrier's cost of providing service plus a reasonable return.
Value-of-service pricing
Rates based on the value of transportation to the customer and willingness to pay.
Cost-of-service floor
Long-run revenue must cover relevant variable, fixed, and shared costs; an extra short-run shipment may be evaluated using incremental cost.
Fixed cost
A cost that does not change much with short-run traffic volume, such as committed infrastructure expense.
Variable cost
A cost that changes with activity, such as fuel and trip-related labor.
Product value and transportation
High-value or urgent goods can justify greater spending on speed, security, and reliability.
Pricing before deregulation
Greater government control of rates, routes, entry, and service.
Pricing after deregulation
Greater market and contract flexibility, with stronger price competition in many markets.
Customer
The buyer of transportation service, often the shipper.
Consumer
The buyer or user of the transported product.
Ultimate consumer
The final user whose demand drives upstream supply chain activity.
Four Cs of pricing
Cost, competition, consumer demand, and controls (government).
Perfect competition
Many sellers, similar offerings, easy entry, and little pricing power.
Monopolistic competition
Many sellers offering differentiated services with relatively easy entry.
Oligopoly
A few major firms with entry barriers and interdependent decisions; the predominant transportation structure in the review.
Monopoly
One provider with no close practical competitor.
Contestable market
A market where potential entry and easy exit pressure existing firms to keep prices competitive.
Contestability factors
Entry and exit barriers, sunk costs, infrastructure access, regulation, and incumbent network advantages.
Contestability and pricing
Less contestable markets tend to have higher prices.
Visibility
Knowing what is happening to shipments, inventory, and operations through timely shared information.
Visibility benefits
Earlier disruption detection, contingency planning, better decisions, and improved coordination.
Visibility challenges
Incompatible systems, poor data, limited participation, hidden supplier tiers, cost, cybersecurity, and difficulty turning data into action.
GPS and telematics
Track location, fuel use, and driver behavior; require equipment, connectivity, and data management.
Transportation Management System (TMS)
Plans shipments, selects carriers, and manages freight costs; requires integration and reliable input data.
Routing software and AI
Optimize routes, loads, and schedules; poor data or unrealistic recommendations can limit benefits.
RFID, barcodes, and IoT
Identify and track cargo or monitor conditions; drawbacks include equipment costs, scanning limits, and integration needs.
EDI and APIs
Exchange shipment information between systems; require compatibility, integration, and security.
Electronic logging device (ELD)
Records commercial drivers' driving hours; supports compliance but adds equipment and administration costs.
Safety and driver-assistance systems
Support warnings and collision avoidance; require maintenance, training, and continued safe operation.
Digital product passport
A digital record of a product's identity, origin, materials, and history that supports traceability, repair, and recycling.
Economies of scale
Average cost per unit falls as output increases.
Sources of scale economies
Spreading fixed costs, specialization, bulk buying, efficient technology, and better capacity utilization.
Modes with strong scale economies
Pipelines, ocean shipping, LTL trucking, and railroads; sufficient demand must use the capacity.
Diseconomies of scale
Average costs rise because growth creates coordination problems, bureaucracy, communication failures, congestion, or reduced oversight.
Internal economies of scale
Cost advantages developed within a firm, such as spreading its equipment costs over more output.
External economies of scale
Cost advantages outside one firm that benefit multiple companies, such as improved shared infrastructure.
Competitive advantage from internal economies
Internal savings generally provide greater advantage because competitors do not automatically receive them.
Scale economies and globalization
Larger international markets support greater volume, specialization, and lower unit costs.
Scale economies and market concentration
Large firms' lower average costs can support fewer firms and make entry harder for smaller competitors.
Limits to scale
Limited demand, capacity limits, coordination problems, congestion, distance, service requirements, and regulation.
Scale economies and mergers
Combining volume, networks, and facilities can spread costs and encourage mergers or acquisitions.
Economies of scope
Lower combined cost from producing different services using shared inputs.
Sources of scope economies
Sharing equipment, facilities, staff, technology, administration, purchasing, marketing, and distribution.
Scale versus scope
Scale means more output; scope means different outputs sharing resources.
Economies of density
Lower unit costs as more customers or shipments use the same geographic area or network.
Sources of density economies
Fuller vehicles, concentrated customers, higher route volumes, balanced return loads, and less empty travel.
Density and pricing
Better utilization lowers unit costs and may support lower prices.
Network economies
More connected routes, terminals, or destinations improve network usefulness, consolidation, and utilization.
Modes with network economies
Airlines, railroads, LTL trucking, maritime transportation, and pipelines.
Trucking's economic significance
Provides flexible door-to-door service and first/last-mile connections; the review gives 70+% of U.S. tons and 40+% of ton-miles.
Common carrier
Offers transportation to the public under applicable service obligations.
Contract carrier
Provides transportation for particular customers through negotiated agreements.
Private carrier
Uses an owned or leased fleet to support its own business rather than sell transportation service.
For-hire transportation
Transportation purchased from an outside carrier.
Insourcing versus outsourcing
Insourcing performs transportation internally; outsourcing buys it externally. The review identifies transportation as the most commonly outsourced function.
Private transportation's presence
Private fleets move approximately half of U.S. truck tonnage; private passenger transportation includes household and company vehicles.
Private fleet advantages
Control, reliable capacity, customization, customer service, and supply chain integration.
Private fleet disadvantages
Investment, staffing, maintenance, compliance, liability, and unused capacity.
Truckload (TL)
Usually moves a large shipment directly between origin and destination with limited terminal handling.
Less-than-truckload (LTL)
Combines smaller shipments through pickup, sorting terminals, line-haul, and delivery.
TL market structure
Monopolistic competition: many carriers can enter without building a large terminal network.
LTL market structure
Oligopoly: expensive terminal networks and scale economies favor fewer large competitors.
Trucking's inherent advantages
Accessibility, flexible routes and schedules, and complete door-to-door service.
Fuel management strategies
Improve loading, reduce idling, train drivers, maintain vehicles, improve efficiency, buy fuel strategically, and use telematics.
Trucking cost structure
Low fixed and high variable costs; the review lists labor around 44% and fuel around 21%.
Trucking scale economies
Stronger in LTL because greater traffic spreads terminal and network costs; more limited in ordinary TL.