Tiers of Public Works Projects

Public Works Projects are classified into three tiers according to the type of Setup for the Construction Zone and the nature of the Public Road. Evaluation criteria used to categorize projects include public safety, time of day, legal speed limits, ADT, roadway design, MUTCD standards, length and duration of the Setup, and limited or full access road designations on the Public Road. (1) High Speed Roads. High Speed Roads are divided and undivided Public Roads with a legal speed limit greater than or equal to 45 miles per hour. (2) Low Traffic High Speed Roads. Low Traffic High Speed Roads are High Speed Roads with volumes of traffic less than a maximum of 4000 vehicles per day. (3) Low Speed Roads. Low Speed Roads are divided and undivided Public Roads with a legal speed limit less than 45 miles per hour.