How many lanes are typically going in one direction on an expressway?

An expressway is designed to facilitate high-speed traffic with minimal interruption, which is why it typically features two or more lanes in each direction. This configuration allows for better traffic flow and enables vehicles to travel at higher speeds while accommodating more cars. Having multiple lanes helps in reducing congestion, allowing vehicles to overtake slower traffic safely and efficiently.

In contrast, having only one lane in either direction would create bottlenecks and significantly increase the risk of accidents, as vehicles would have limited options for maneuvering. Similarly, while some expressways may feature three to four lanes or even five or more, the more common configuration that balances capacity and efficiency is two or more lanes in each direction.