U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
There are two performance measures to assess traffic congestion for the purpose of carrying out the CMAQ program (referred to collectively as the CMAQ Traffic Congestion measures. They are:
(a) Annual Hours of Peak Hour Excessive Delay (PHED) Per Capita (referred to as the PHED measure); and
(b) Percent of Non-SOV Travel.