- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 02 Oct 2017
Contractor's working schedule
Some construction contracts, in particular in the USA, require that the contractor produces a contractor’s working schedule. This is a critical path method (CPM) logic diagram used by the contractor, not only to plan the works, but also to record actual progress and to show how the remaining works will be completed. This is not a static schedule but is maintained by the contractor throughout the duration of the works and published periodically as a form of reporting.
In the UK, the Chartered Institute of Building’s (CIOB) Contract for Complex Projects (CPC 2013), requires that the contractor produces a working schedule, (sometimes referred to as the contractor’s working schedule) which CIOB describe as ‘a resource and cost-loaded critical path network’.
The working schedule is a digital, quality-controlled, critical path network, used to manage time, and updated with progress data such that it automatically calculates the construction end date for the works.
Cost management is carried out by reference to values attributed to the activities in the schedule, such that the schedule constantly calculates the value of work done to date and predicts the out-turn cost of the works. Payment is based upon work properly done according to the working schedule.
CIOB suggest that the working schedule is prepared at three levels of density. At low and medium density, activity durations may be estimated and linked with activity-related logic. At high density (the short-term look ahead) activity durations are calculated by reference to resources and achievable productivity and linked by resource and location-related logic.
 Find out more
 Related articles on Designing Buildings Wiki
- Activity schedule.
- Chartered Institute of Building.
- Construction contractor.
- Contract for Complex Projects
- Contractor’s master programme.
- Noise nuisance.
- Schedule of work.
- Scheduling construction activities.
- Time management of construction projects.
- Time and Cost Management Contract.
- What hours are construction sites allowed to operate?
- Workmanship in construction.
Featured articles and news
Under the Party Wall Act a property owner has the legal right to do works that might otherwise constitute trespass or nuisance.
BSRIA examine the 'unpredictable' 2018 global air conditioning market.
ICE publish new report calling for new sector-wide body to help avert structural failures.
The rainbow JCB will be making a welcome return to the London Build Expo on 23 and 24 October at Olympia.
An introductory article to external works - all activities carried out to the external environment of a building project.
With the clock ticking, RIBA say that a 'no deal Brexit' will be "disastrous" for the architecture profession.
The focus is generally on the lime binder, but the aggregate is actually the most significant element.
The importance of communication, collaboration and simplicity when planning construction projects.
New working group is set up to consider options for raising standards across the property agent sector.
BSRIA provide a top 10 list of recent legislation and guidance affecting buildings.