The duties of the house rules committee are best described as those of a

Duties of house rules committee are just like that of a traffic cop.

Explanation:

The duties of the house rules committee are to see what is in order and what is not in order. It also has to see the scheduling of the bills on the floor of the house which are coming from the committees of the policies and the fiscal committees.

It is done to schedule everything properly and make sure that this schedule is followed. So it is just like a traffic cop making things put in order and make sure that the order is followed properly.