In a scenario where a rider is in a blind spot of a vehicle, what position is most dangerous?

The most dangerous position for a rider in relation to a vehicle's blind spot is when they are identified as being in the center lane of the right-lane car's blind spot. This is because the rider's visibility is severely limited; the driver may not see them at all if they attempt to make a lane change or turn. Being in this position increases the risk of collision significantly, as the vehicle could move laterally without the driver being aware of the rider's presence.

In contrast, being ahead of the car allows for better visibility both for the rider and the driver. The rider close to the curb is similarly in a safer position as they are likely outside the blind spot and can maneuver if necessary. The rider in the left lane could also reduce risk by being in a different lane where they're less likely to be hidden from the driver's view.