| Who travels? How much travel? What moves? How much moves? |
Shows source of transportation demand and most direct beneficiaries of transportation investment. |
| Why do people travel? How valuable is the material being moved? |
Indicates relative importance of serving the demand for transportation. |
| How far do people travel? How far do goods move? |
Provides an aggregate measure of transportation consumed. |
| From where to where? |
Shows location of transportation facilities and services consumed; geographic regions and corridors affected. |
| What is the main mode used? |
Provides basic input for debates on intermodal issues. |
| What other modes were used? |
Indicates demand for intermodal connections and local access. |
| Do the links, nodes, and service providers cover current and anticipated origins and destinations? |
Is a basic system performance measure. |
| How much of the system capacity (links, nodes, vehicles, and services) are consumed by current and anticipated travel and goods movement? |
Indicates physical capacity of the system to provide service for basic transportation demand. |
| How timely is travel and goods movement between origins and destinations? (Traveltime, system speed) |
Shows how effective the system is for the user; is a major component of user satisfaction, economic productivity, and international competitiveness. |
| How reliable are the trips and goods movements between origins and destinations? |
Shows how effective the system is for the user; is a major component of user satisfaction, economic productivity, and international competitiveness. |
| How much does it cost to provide transportation services and infrastructure? |
Indicates the efficiency of the transportation system. |
| How much do shippers and travelers spend to use services and infrastructure? |
Shows how efficient the system is for the user; indicates the consequences for economic productivity and international competitiveness; provides input for market analysis. |
| How much of the costs for services and infrastructure are covered by users, the public sector, or others? |
Provides input for analyses of investment, cost allocation, and privatization issues. |
| How likely is the traveler to be hurt or luggage lost or damaged? How likely is the shipment to be damaged, lost, or stolen? |
Indicates safety and security. |
| Who is the service provider? |
Identifies the direct beneficiaries of transportation investment; provides accountability. |
| What is the financial condition of the service provider? |
Identifies the ability of providers to maintain and improve performance and safety, susceptibility to foreign ownership and legal complications. |
| If the travel is for business, what industry is being served? For goods movement, who are the shippers and receivers? |
Identifies the economic sectors receiving direct benefits from transportation investments. |
| Who else is dependent on the travel or the shipment? |
Identifies others receiving direct benefits from transportation investments. |
| How much damage is done to the physical infrastructure and which users are causing the damage? |
Establishes investment needs; indicates where costs should be allocated among users and others. |
| What is the risk of health-related mishaps? |
Identifies safety risks; can present special risks for hazardous materials. |
| What are the effects on air and water quality, noise, and other environmental concerns? |
Mandated by environmental legislation; provides information for the ongoing debate between environmental concerns and interstate commerce. |
| How much energy is consumed? |
Provides basic information on energy conservation and for national security issues and global climate change. |
| Who and what are affected by these externalities? |
Identifies the societal and environmental consequences of transportation, in addition to how endangered species are affected. |
