American Institute of Certified Planners (AICP) Practice Exam

What is the average number of vehicle trips per unit for single-family residential developments?

1. 5.5 Vehicle Trips per Unit

2. 6 Vehicle Trips per Unit

3. 7 Vehicle Trips per Unit

4. 10 Vehicle Trips per Unit

The correct answer is: 10 Vehicle Trips per Unit

The average number of vehicle trips per unit for single-family residential developments is typically considered to be around 10 vehicle trips per unit. This figure is derived from various transportation studies and is widely referenced in planning and traffic engineering literature. The rationale behind this average lies in the nature of single-family homes, where residents generally have multiple trips throughout the day, including commuting to work, running errands, and other activities. Additionally, factors such as household size, car ownership rates, and the type of amenities or services located nearby influence this number. This average helps planners and traffic engineers estimate the impact of new developments on local transportation systems, guide infrastructure planning, and assess overall traffic demand in a particular area. By acknowledging the propensity for single-family households to generate a higher volume of trips, effective measures for traffic management can be put in place to accommodate growth while ensuring safety and mobility within the community.