Final answer:
The problem common to rural roads in spring and fall is the presence of slow-moving vehicles.
Step-by-step explanation:
The problem common to rural roads in spring and fall is the presence of slow-moving vehicles. During these seasons, agricultural activities such as planting or harvesting are taking place, leading to an increased number of farm vehicles on the roads. These vehicles can be large and slow-moving, causing congestion and delays for other drivers.
Learn more about slow-moving vehicles on rural roads