Considering per-capita revenue collection shows how states rank when transportation revenue is compared to total state population (see table 8). This is only one method of comparing across states. Other factors that could be considered for comparative purposes would be number of road and highway miles, quality of the roadway network and vehicle miles traveled. Nonetheless, the per-capita figure gives a sense of the relative position of the states and may be helpful to those states that find themselves at one extreme or the other.