LCA Craft and Design common mistakes
LCA Craft and Design · Understand the traps and how to avoid them.
Treating a courtroom as a generic assembly occupancy and sizing it by seat count alone, without checking the functional zones the court actually needs (well, gallery, jury, prisoner, public circulation, staff support).
Candidates memorize occupant-load and egress tables and assume area per person is the whole design problem; they have not internalized that a courtroom's area is driven by sightline and separation requirements before egress math.
What to do instead
For any courtroom sizing item, first enumerate the functional zones and the clearances between them, then apply occupancy and egress checks as a secondary constraint. Practice producing a zone-by-zone area build-up for a given case type (jury trial, bench trial, arraignment) and compare it against the seat-count shortcut.
Placing the prisoner entrance, public entrance, and judicial entrance on the same circulation spine or allowing them to share a corridor segment, then defending it as 'controlled by staff.'
Candidates focus on the courtroom interior and treat back-of-house circulation as an afterthought; plans look efficient when routes are consolidated, so the security flaw is easy to miss on paper.
What to do instead
Apply a hard rule: secure, restricted, and public circulation never intersect, and prisoner movement never crosses public space. On every plan-based item, trace each of the three routes end to end and flag any shared node, even a door or elevator lobby.
Assuming a single accessible route and an accessible witness stand satisfy accessibility requirements, without checking sightlines from wheelchair positions, jury box access, attorney table knee clearance, and assistive listening coverage.
Candidates reduce accessibility to ramp-and-toilet compliance because those are the most familiar code items; courtroom-specific provisions (line of sight over seated spectators, integrated jury seating) are less practiced.
What to do instead
Build a checklist of courtroom-specific accessible features: spectator sightline over standing/row conditions, wheelchair space dispersion, accessible jury positions with comparable view, witness stand approach, and assistive listening in the whole room. Walk the checklist against a described layout rather than recalling code sections.
Selecting evidence-presentation technology by feature list (resolution, inputs, annotation tools) without tying it to the evidentiary display requirements of the proceeding and the judge and jury viewing geometry.
Vendor-style feature comparison is easy to revise; candidates avoid the harder reasoning about who must see what, at what distance, and what must be preserved for the record.
What to do instead
For each technology item, state the viewer, the required image size and viewing distance, and the record-preservation requirement before evaluating equipment. Rehearse the 'jurors in the back row must read a document exhibit' calculation and the annotation-preserved-for-appeal question.
Designing records and evidence storage as generic shelving density, ignoring environmental control targets, fire suppression trade-offs, and the distinction between temporary evidence holding and long-term archival storage.
Candidates conflate storage types and default to compact shelving for maximum density; they underweight humidity stability, waterless suppression, and chain-of-custody implications of the storage location.
What to do instead
Separate the problem into three storage classes (active evidence, temporary court holding, archival records) and state the environmental and suppression requirement for each. Practice justifying why high-density shelving is inappropriate where humidity control or rapid retrieval dominates.
Answering procurement and construction-coordination items by picking the most familiar delivery method (typically design-bid-build) without matching it to schedule, cost certainty, and court-operations constraints.
Candidates learn one delivery method deeply and pattern-match; they do not practice articulating the trade-offs of CM-at-risk, design-build, or phased occupancy for an operating courthouse.
What to do instead
For each project scenario, write the three constraints (schedule, cost certainty, continuity of court operations) and then select the delivery method that best satisfies the dominant constraint, naming the trade-off accepted. Memorize nothing; derive from constraints.
Treating life-cycle cost as first cost plus a flat maintenance percentage, instead of discounting operating, energy, replacement, and renewal costs over the asset life.
Present-value mechanics are rusty and candidates default to simple payback; they also omit renewal cycles for major systems and the cost of operational disruption.
What to do instead
Drill a standard life-cycle cost worksheet: initial cost, annual operating and energy, periodic replacement at stated intervals, discount rate, and residual value. For each item, show the discounted comparison rather than a payback period, and name which assumptions drive the ranking.
Answering sustainability items with certification-credit recall rather than reasoning about energy end uses, resilience of court operations, and the interaction between envelope, HVAC, and plug loads in a high-occupancy, high-equipment building.
Candidates study rating-system checklists because they are concrete, but exam items test whether the candidate can reason about load profiles and continuity of operations during outages.
What to do instead
Practice decomposing a courthouse energy profile into envelope, ventilation, lighting, and plug/IT loads, then identify the measures that address the dominant load. Separately rehearse resilience questions: which functions must remain powered, for how long, and what passive strategies buy time.
Writing emergency-preparedness answers around fire evacuation only, omitting shelter-in-place, lockdown, medical emergency, and continuity of proceedings, and ignoring the difference between public and secure-zone response.
Fire drill is the rehearsed emergency; candidates generalize it to all hazards and forget that a courthouse's response depends on which zone the occupant is in and whether a trial is in session.
What to do instead
Build a hazard-by-zone matrix: for each hazard (fire, threat, medical, utility failure, severe weather), state the response in public, restricted, and secure zones and the trigger for suspending proceedings. Answer from the matrix, not from a single evacuation narrative.
On budgeting and cost-control items, quoting a contingency percentage as a fixed rule without distinguishing design, construction, and owner contingency or explaining what each covers and who controls it.
Contingency is taught as a single number, so candidates cannot allocate risk or explain change-order exposure; they also omit escalation and market conditions from the estimate.
What to do instead
Learn contingency as three separate allowances with distinct owners and drawdown rules, plus escalation to the midpoint of construction. For each scenario, state which contingency absorbs the risk and why the others should not be tapped.