When might a bicyclist typically need to ride to the right side of the road?

A bicyclist typically needs to ride to the right side of the road when they are in a bike lane. Bike lanes are designated areas on the road specifically for the use of bicycles, which help ensure the safety of the rider and provide a clear path separate from motor vehicle traffic. Riding in a bike lane is crucial because it allows for a more organized flow of both cyclists and vehicles, and it helps prevent accidents by providing dedicated space for cyclists.

The other scenarios do not inherently require riding to the right side of the road. For example, being in a larger vehicle's blind spot indicates a need for awareness and possibly repositioning to avoid danger, rather than strictly adhering to the right side. During heavy rains or at night in inclement weather, the focus should be on visibility and safety rather than positioning relative to the road's edge. Therefore, the safest and most appropriate action for a bicyclist is to utilize bike lanes, which promote safety and efficiency on the road.