Final answer:
Two lane roundabouts can manage a higher volume of traffic efficiently, especially with increased demand from a new manufacturing plant, an expanded strip mall, and traffic from college football games.
Step-by-step explanation:
Two lane roundabouts allow for a higher volume of traffic than do single lane roundabouts. With the substantial increase in traffic due to the new manufacturing plant, the expansion of the strip mall businesses, and the college football games traffic routing, a two-lane roundabout is better suited to handle the increased traffic flow efficiently. Single lane roundabouts have limitations on how much traffic they can manage before becoming congested, while two-lane roundabouts can accommodate more vehicles simultaneously, reducing delays and improving traffic circulation.