American Institute of Certified Planners (AICP) Practice Exam

What is the vehicle trip rate for planned unit developments?

1. 6 Vehicle Trips per Unit

2. 8 Vehicle Trips per Unit

3. 7 Vehicle Trips per Unit

4. 10 Vehicle Trips per Unit

The correct answer is: 8 Vehicle Trips per Unit

The vehicle trip rate for planned unit developments is commonly accepted as 8 vehicle trips per unit. This figure typically reflects the average number of daily trips generated by such developments, taking into account their unique characteristics, such as mixed-use settings, higher densities, and close proximity to amenities. These factors often result in lower vehicle trip generation compared to traditional suburban subdivisions, where the trip rates might be higher due to greater reliance on automobiles for accessing services and daily needs. Understanding this trip rate is crucial for planners and developers, as it aids in forecasting traffic impacts, ensuring proper infrastructure planning, and developing transportation strategies that accommodate the specific context of planned unit developments. This number also serves as a baseline in various traffic studies and assessments for development proposals.