American Institute of Certified Planners (AICP) Practice Exam

What is an example of socioeconomic characteristics used in trip generation models?

1. Number of beds in a hospital

2. Average income of the population

3. Car ownership ratios

4. Density of nearby restaurants

The correct answer is: Average income of the population

The average income of the population is a vital socioeconomic characteristic used in trip generation models because it directly influences travel behavior and patterns. Higher income levels typically correlate with increased car ownership, more trips for shopping and recreation, and longer trip distances. Models that predict trip generation must consider income as it affects the types of destinations people choose, how often they travel, and the mode of transportation they use. Therefore, incorporating average income allows urban planners to better understand and forecast travel demand, ensuring that transportation infrastructure and services meet the needs of different economic segments in the community. Other factors like the number of beds in a hospital or the density of nearby restaurants do not serve as direct indicators of socioeconomic status and instead represent specific land uses or services relevant to certain types of trips. Car ownership ratios can indicate transportation access but are more related to vehicle availability rather than the broader socioeconomic context that income encapsulates.