where MSF is the maximum service flow rate per lane for level of service i under ideal conditions in pcphpl,(v/c),is the maximum volume-to-capacity ratio associated with level of service i for a specified number of freeway lanes,and c is the per-lane capacity c has been determined to be 2200 pcphpl for four lane freeway and 2300 pcphpl for freeway with six or more lanes.Note that the value of c equals the maximum service flow rate at LOS E is equal to one.