They will also have one in the back . I am not sure where the Young Rider will be . My job is to drive behind them with my flashers on and make it so that no one can come up there butt and then fly off past them as they pass . They want to minimize the startle factor so if I am behind them the people that will pass us will do so far enough away so it will just be like having traffic coming on the other side .

Question: What may be the reason for needing police to steer traffic ?
Answer: To make the commute more tolerable .To make things go slower .To ensure everyone 's safety .To weed out impatient people .