On a multi-lane highway, which lane is generally for slower traffic?

The right lane on a multi-lane highway is typically designated for slower traffic. This is because it allows faster-moving vehicles to use the left lanes for overtaking and passing. By keeping slower vehicles to the right, traffic flow is improved, and it reduces the likelihood of congestion caused by slower vehicles impeding the progress of faster-moving ones.

The left lane is generally reserved for overtaking or faster-moving traffic. The middle lane may serve a mixture of traffic speeds but is often utilized by vehicles that are neither at the slowest nor the fastest speed. The emergency lane is designated for stopping in case of breakdowns or emergencies and is not intended for general travel. In summary, the right lane serves a critical function by helping to maintain an orderly flow of vehicle movement on highways.