I. Introduction to Transportation

What is a place?

  • Home, Business, Office, Industrial Building​

  • Park, Schools, Institutions​

  • Land use​

  • Neighborhood​

  • District​

  • Town​

  • City

What happens when we build more places?

The moment when more than one place is built, latent demand also appears.

Latent Demand

Demand for a product or service that a consumer cannot satisfy because they do not have enough money, because the product or service is not available, or because they do not know that it is available.

Source (Cambridge Dictionary)

Modes of Transportation

Transportation Modes

•Walking

•Rolling

•Cycling

•Driving

•Transit (bus/trams/trains etc.)

Induced Demand

The moment when transportation infrastructure is built, the demand of transportation mode is induced.

Transportation Modes

Induced demand works for other modes of transportation as well.

What is Induced Demand?

Induced Demand is NOT

More capacity (travel lanes) does not invite for more traffic.

Why does congestion happen?

  • Population growth

    • More Places

    • More Activities

    • More People

  • Traffic demand and volume intensifies

*When is (car) capacity enough?

When is (car) capacity enough?

  • Capacity will never be enough

  • Places will always grow

  • Cars physically take up too much space and too many resources:

    • Number of lanes + lane widths

    • Parking space (Parking Garages)

    • Expensive traffic signals

    • Environmental Impacts (Noise & Air pollution)

  • Inefficient at moving large volume of people (autonomous or not)

Transportation Demand Strategies (TDM)

Cost Incentives

  • Tolls

  • Parking Meters

  • Carpooling

Promote Alternative Modes

  • Cycle Lanes

  • Mass Transit: Bus/Rail

Perhaps It's Not A Transportation Issue At All!

Land-Use: Bringing Places Closer Together

  • Compact Developments

  • Transit Oriented Developments

  • Mix-use Structures