Highway Statistics 2021
Table PS-1 entitled "Selected Measures for Identifying Peer States" is provided to help make equitable comparisons between the States. There are many differences between States in their geography, economy, traffic growth, highway system size, etc. that need to be taken into account when comparisons are made between States. Further information may be found in the article, "Identifying peer states for transportation system evaluation & policy analyses" in the journal Transportation, volume 35, pages 445-465.