Work durations are defined by the TMUTCD and by the . TCP of 3 days or less may be implemented by the contractor using the . An engineered (signed & sealed) traffic control design shall be required and provided to the contractor in the construction plans for Long Term Stationary work that is for an expressway/freeway. Unique project conditions, such as detours of major arterials or rapid bridge replacement involving higher risk to the travelling public, may justify TCP plans of 3 days or less to be designed as part of the construction plans.