AICP Transportation and Infrastructure Planning 2

Question 1

What is 'induced demand' in transportation planning?

Accepted Answer

The phenomenon where new road capacity generates additional traffic rather than relieving congestion

Answer

Induced demand occurs because new highway capacity lowers travel costs, attracting new trips that ultimately fill the added capacity and restore congestion.

Question 2

What federal act significantly restructured transportation funding by emphasizing multimodal systems and planning flexibility?

Accepted Answer

Intermodal Surface Transportation Efficiency Act (ISTEA) of 1991

Answer

ISTEA transformed federal transportation policy by giving states and MPOs flexibility to use highway funds for transit and emphasizing multimodal, intermodal connections.

Question 3

Which travel demand forecasting method uses trip generation, distribution, mode choice, and assignment steps?

Accepted Answer

Four-step model

Answer

The four-step model is the traditional travel demand forecasting approach, sequentially estimating trip generation, trip distribution, mode choice, and traffic assignment.

Question 4

What is a 'road diet' in transportation planning?

Accepted Answer

Reducing vehicle lane capacity to add space for other modes or improve safety

Answer

Road diets typically convert a four-lane undivided road to a three-lane configuration, reducing conflict points and adding bike lanes or wider sidewalks.

Question 5

What does 'headway' mean in transit planning?

Accepted Answer

The time interval between consecutive transit vehicles on a route

Answer

Headway determines service frequency—shorter headways mean more frequent service, which is a key factor in transit ridership and rider convenience.

AICP - American Institute of Certified Planners Practice Test

AICP - American Institute of Certified Planners Practice Test

AICP Transportation and Infrastructure Planning 2