07-Str-B2 · December 2017
Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
Paper format: National Exams, December 2017 — 07-Str-B2 Management of Construction. Three hours, closed book, one approved Casio or Sharp calculator permitted. Six questions of equal value (20 marks each); any five constitute a complete paper and only the first five answered in the answer book are marked. All six are worked below so that the paper can be used for revision whichever five a candidate chooses.
Reference texts: Hegazy, T., Computer-Based Construction Project Management (Prentice Hall) — precedence (activity-on-node) networks with lags, forward and backward passes, total and free float, earned-value progress measurement and the time–cost trade-off curve; these chapters carry Questions 1 and 3. Hendrickson, C. & Au, T., Project Management for Construction (2nd ed., Carnegie Mellon) — Chapter 5 (cost estimation and unit-cost data), Chapter 10 (fundamental scheduling procedures), Chapter 11 (advanced scheduling with lags) and Chapter 12 (cost control, monitoring and accounting), including percent-complete and earned-value reporting. Halpin, D.W. & Senior, B.A., Construction Management (4th ed., Wiley) — labour productivity, crew balance, construction contracts and bonding, and construction safety management. Peurifoy, R.L. & Schexnayder, C.J., Construction Planning, Equipment and Methods (9th ed., McGraw-Hill) — crew productivity and the physical determinants of daily output, behind Question 3. R.S. Means, Building Construction Cost Data (annual) — the structure of a unit-price line: crew, daily output, labour-hours per unit, bare material / labour / equipment, and total including overhead and profit. Sullivan, W.G., Wicks, E.M. & Koelling, C.P., Engineering Economy (17th ed., Pearson) — Chapters 5 and 6, present-worth analysis and the repeatability (common multiple of lives) assumption for alternatives with unequal lives, used in Question 4. AACE International, Recommended Practice 29R-03, Forensic Schedule Analysis, and the Society of Construction Law Delay and Disruption Protocol (2nd ed., 2017) — the delay-analysis taxonomy required by Question 2. Canadian Construction Documents Committee, CCDC 2 — Stipulated Price Contract (2020), CCDC 220 Bid Bond, CCDC 221 Performance Bond, CCDC 222 Labour and Material Payment Bond and CCDC 40 — Rules for Mediation and Arbitration, together with the BC Builders Lien Act holdback provisions — the Canadian contractual machinery behind Questions 2 and 5. Transportation Association of Canada, Manual of Uniform Traffic Control Devices for Canada (MUTCDC) and the BC Ministry of Transportation and Infrastructure Traffic Management Manual for Work on Roadways, with WorkSafeBC's Occupational Health and Safety Regulation (Part 18 Traffic Control, Part 4 lighting and workplace conditions, Part 8 personal protective clothing) — the Canadian rule set behind Question 6.
Check — what the printed R.S. Means line in Question 3 actually contains. On line 04810‑3000 the printed cells are labour-hours 0.092, bare material $3.62, bare labour $2.93, bare total $6.55 and total including O&P $8.45. The CREW, DAILY OUTPUT, UNIT and EQUIPMENT cells are blank on the paper — they are not faint, they carry no ink at all. The self-consistency of the printed row ($3.62 + $2.93 = $6.55) confirms the money columns were read correctly.
Question text not reproduced: the examination questions are © Engineers and Geoscientists BC. Open the official past paper (linked at the top of this page) to read the question, then follow the worked solution below.
A delay-related claim is a request for additional time, additional money, or both, made because the work took longer than the contract contemplated and the party making the claim says the extra time was somebody else's responsibility. Almost every substantial construction dispute reduces to that sentence, and almost every one turns on the same three questions: was the work in fact delayed, who bears the risk of the event that delayed it, and what did the delay actually cost. The reasons claims arise, the contract terms that suppress them, the ways they are resolved and the analyses that decide them all follow from those three questions.
The main reasons for delay-related claims. The largest single family is incomplete, late or defective design information. Drawings issued for construction that are not in fact constructible, details that conflict between disciplines, and slow responses to requests for information all stop work at the face while the contractor's overheads keep running. Closely related are owner-directed changes — scope added by change order, or a stream of small changes whose cumulative disruptive effect exceeds the sum of the individually priced items, which is the classic cumulative-impact claim. A second family is differing site conditions: rock where soil was indicated, contamination, unrecorded utilities, groundwater above the reported level, or archaeological finds. A third is late or restricted access — the owner failing to hand over the site, portions of it, or an easement or permit on the date the contract fixed, or third parties such as railways and utility owners not performing their part. A fourth is weather beyond the contractual allowance, which is normally excusable but not compensable. A fifth is the contractor's own performance: under-resourcing, poor procurement of long-lead items, subtrade failure or insolvency; these produce claims too, but as defences and back-charges rather than as entitlements. Overlaying all of these are unrealistic original durations and bid schedules that were never achievable, which convert ordinary variability into apparent delay, and acceleration, whether directed or constructive, where the contractor is refused an extension of time to which it was entitled and must spend money to recover the date.
Contractual modifications that reduce such claims. The object is to allocate each risk to the party that can best control or absorb it and to force the parties to deal with events while the facts are fresh. In Canadian practice this is done through several well-tried mechanisms. A differing-site-conditions (concealed or unknown conditions) clause, as in CCDC 2 GC 6.4, gives the contractor relief when actual conditions differ materially from those indicated, which is cheaper for the owner than paying the contingency every bidder would otherwise carry. Clear notice and record-keeping requirements — written notice within a defined number of days of the event, followed by a substantiated claim — stop stale claims and preserve contemporaneous evidence. A defined baseline schedule with an approval process, monthly updates and a specified critical-path methodology converts arguments about "what would have happened" into a comparison of documented schedule states. An explicit float-ownership clause (float belongs to the project, not to either party) removes the most common source of entitlement argument. Time-bar and mutual waiver of consequential damages clauses cap exposure; a weather allowance expressed as days per month against thirty-year normals converts a recurring argument into arithmetic. Liquidated damages set as a genuine pre-estimate of loss, coupled with a workable extension-of-time mechanism, keep the delay conversation contractual rather than adversarial. Realistic, priced early-completion and milestone provisions, prompt-payment terms, and a partnering charter with a standing dispute-resolution board reduce the incidence of claims further. Finally, choosing a delivery method that matches the uncertainty — construction management or design-build where the design cannot be complete at tender, unit-price where quantities are genuinely unknown — removes the mismatch that generates claims in the first place.
Approaches to settling a claim. These form a ladder of increasing cost, formality and loss of control. Direct negotiation between the project participants settles the great majority and should be attempted at the lowest level with authority to settle. Escalation to senior executives who were not personally involved removes the entrenchment that site-level negotiation acquires. A standing dispute-resolution board or project neutral, appointed at the outset and visiting the site periodically, gives a fast non-binding opinion from someone who already knows the job. Mediation introduces a trained third party who has no power to decide but explores each side's real interests and its litigation risk; CCDC 40 makes mediation a required step. Statutory or contractual adjudication, now available in several Canadian jurisdictions under prompt-payment legislation, produces a rapid interim-binding decision that keeps money flowing during the job. Arbitration gives a binding award from a decision-maker the parties choose for their technical knowledge, in private and usually faster than court. Litigation is the last resort: public, slow and expensive, but with full discovery and appeal rights. The practical rule is that settlement value falls and transaction cost rises at every rung, so the parties should climb the ladder only as far as the genuine difference between them requires.
The analyses needed to validate and judge a claim. Four separate demonstrations are required, and a claim that omits any one of them will fail. First, entitlement: an analysis of the contract itself, identifying the clause under which relief is claimed, confirming that notice was given as required, and establishing that the risk of the event lies with the other party. Second, causation through schedule analysis: the delay must be shown to have affected the critical path. AACE International's Recommended Practice 29R‑03 sets out the recognised methods — as-planned versus as-built (simple, but weak on causation), impacted as-planned (inserting delay events into the baseline; prospective and often criticised), collapsed as-built or "but-for" (extracting delay events from the as-built; retrospective), and time-impact analysis or windows analysis, which updates the schedule at successive data dates and models each event as it arose. Windows analysis is the method most tribunals prefer because it uses the schedule as it actually stood when each event occurred. Third, the apportionment of concurrent delay: where an owner-caused and a contractor-caused delay overlap, the usual outcome is an extension of time without compensation, so the analysis must separate the two and identify which was genuinely critical. Fourth, quantum: extended field overhead computed from actual site costs over the extended period, unabsorbed home-office overhead (in Canadian practice by direct proof rather than an automatic Eichleay-style formula), escalation of labour and material prices, equipment standby, acceleration costs, and lost productivity. Productivity loss is the hardest head of claim and should be demonstrated by a measured-mile comparison of an unimpacted period of the same work against the impacted period, falling back to industry factor tables (MCAA, CII) only where no clean measured mile exists. Supporting all four are the contemporaneous records: daily reports, labour distribution by cost code, minutes, correspondence, photographs and schedule updates. A claim that is documented while the work happens is usually settled; one reconstructed afterwards from memory is usually litigated and usually lost.
