Study guide
10.2 Initial Decision Maker, Communication Protocols & Project Records
Landscape Architect Registration Examination L.A.R.E.
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1 Chapter 1: Project Management, Legal Framework & Contracts
1.1 Professional Practice, Ethics & the HSW Mandate 1.2 Standard of Care, Responsible Charge & Sealing Documents 1.3 Professional Services Agreements & Contract Clauses 1.4 Fee Structures, Compensation Models & Billing 1.5 Project Scheduling, CPM & Budget Management 1.6 Risk Management, Professional Liability & Insurance
2 Chapter 2: Site Inventory, Surveying & Regulatory Framework
2.1 Boundary Surveys, Legal Descriptions & Survey Datums 2.2 Topographic Surveys, Easements & Encumbrances 2.3 Desktop Inventory, GIS Data & Field Reconnaissance 2.4 Policy Documents & Prior Planning Studies 2.5 Adjacent Land Use & Contextual Data Collection 2.6 Stakeholder Engagement & Public Participation 2.7 Zoning Frameworks, Dimensional Standards & FAR 2.8 Parking Standards, Buffer Yards & Zoning Relief 2.9 Clean Water Act Permitting & NEPA Review 2.10 ESA, Floodplain, Coastal & Historic Preservation Compliance
3 Chapter 3: Physical, Contextual & Environmental Site Analysis
3.1 Scoping Site Analysis & Synthesizing Opportunities and Constraints 3.2 Geotechnical Investigation & Soil Classification Systems 3.3 Problematic Soil Conditions & Agronomic Soil Quality 3.4 Topographic Interpretation & Slope Suitability 3.5 Watershed Mechanics, Stream Order & FEMA Flood Hazard Zones 3.6 Wetland Delineation, Classification & Riparian Buffers 3.7 Utility Analysis & Infrastructure Capacity 3.8 Visual Resource & Viewshed Analysis 3.9 Contextual Analysis: Appropriate Use & Future Development Impacts 3.10 Microclimates, Solar Orientation & Vegetation Analysis
4 Chapter 4: Stewardship, Climate Resiliency & Design Principles
4.1 SITES v2 & LEED Site Credit Rating Systems 4.2 Life-Cycle Assessment, Embodied Carbon & Ecosystem Services 4.3 Climate Resiliency, Adaptation & Urban Heat Island Mitigation 4.4 Environmental Justice & Social Equity in Site Design 4.5 Cultural Landscapes, Historic Preservation & Adaptive Reuse
5 Chapter 5: Master Planning, Programming & Land Use
5.1 Project Visioning, Goal Setting & Space Programming 5.2 Carrying Capacity Analysis & NRPA Park Classification Standards 5.3 Site Suitability Synthesis & Opportunities/Constraints Mapping 5.4 Land Use Allocation & Development Scenario Evaluation 5.5 Master Plan Deliverables & Design Guidelines 5.6 Capital Improvement Programming, Phasing & Implementation
6 Chapter 6: Schematic Design & Spatial Organization
6.1 Design Intent, Conceptual Diagrams & Form Generation 6.2 Basis of Design, Alternatives Evaluation & the Preferred Scheme 6.3 Spatial Hierarchy, Outdoor Rooms & Proportion 6.4 Pedestrian Circulation Networks & Environmental Wayfinding 6.5 ADA & PROWAG Accessible Route Design 6.6 Multimodal Transportation, Vehicular Circulation & Parking Layout
7 Chapter 7: Design Development, Materials & Planting Systems
7.1 Paving Systems: Rigid, Flexible & Unit Pavers 7.2 Retaining Walls, Earth Pressure & Wall Drainage 7.3 Wall System Selection, Fences, Screens & Gates 7.4 Site Furnishings: Selection, Materiality & Anchoring 7.5 Exterior Lighting, Photometrics, Dark Sky & Electrical Safety 7.6 Public Playground Safety: CPSC & ASTM Standards 7.7 Planting Design Principles & Ecological Matching 7.8 Water Conservation, Xeriscaping & Irrigation System Principles 7.9 Opinions of Probable Cost & Value Engineering
8 Chapter 8: Construction Drawings, Layout & Detailing
8.1 Drawing Set Hierarchy, Sheet Standards & Drafting Conventions 8.2 Interdisciplinary Coordination & QA/QC Review 8.3 Demolition Plans & Tree Protection Requirements 8.4 Site Preparation: Clearing, Grubbing, Topsoil & Utility Abandonment 8.5 Layout, Dimensioning & Materials Plans 8.6 Planting Plans, Plant Schedules & Installation Details 8.7 Technical Detailing: Pavements, Curbs & Joint Assemblies 8.8 Retaining Wall, Stair & Ramp Detailing Standards
9 Chapter 9: Construction Specifications & Bidding
9.1 CSI MasterFormat Divisions & SectionFormat Structure 9.2 Specification Writing Methods & the Drawings–Specifications Relationship 9.3 Project Manual, General Conditions & Front-End Documents 9.4 Bid Requirements, Bid Forms & Addenda Management 9.5 Pre-Bid Procedures, Bid Opening & Contractor Evaluation
10 Chapter 10: Construction Administration, Submittals & Changes
10.1 Pre-Construction Conference & Construction Administration Authority 10.2 Initial Decision Maker, Communication Protocols & Project Records 10.3 Submittals, Shop Drawings, Product Data & Samples 10.4 Requests for Information (RFIs) & Technical Clarifications 10.5 Change Orders, Construction Change Directives & Claims
11 Chapter 11: Field Observation, Quality Control & Close-Out
11.1 Field Observations, Site Reports & Non-Conforming Work 11.2 Quality Control, Material Testing & Inspections 11.3 Substantial Completion, Punch Lists & Retainage 11.4 Project Close-Out, Guarantees, Warranties & Final Acceptance
12 Chapter 12: Contour Interpretation, Grading & Earthwork Calculations
12.1 Contour Rules & Topographic Landform Interpretation 12.2 Spot Elevations & Contour Interpolation Calculations 12.3 Slope Formulas, Maximum Gradients & Cross Slopes 12.4 Earthwork Calculations: Average End Area & Grid Methods 12.5 Cut and Fill Balancing, Shrinkage, Swell & Mass Haul 12.6 Reviewing Grading Design: Error Detection & Constructability
13 Chapter 13: Stormwater Hydrology, Runoff & BMP Design
13.1 Hydrologic Cycle, Watershed Delineation & Time of Concentration 13.2 Peak Runoff Estimation: The Rational Method (Q = CiA) 13.3 NRCS Curve Number Method & Runoff Hydrographs 13.4 LID Principles, Water Quality Volume & Bioretention Design 13.5 Bioswales, Permeable Pavement, Green Roofs & Harvesting
14 Chapter 14: Site Drainage Systems, Hydraulics & Erosion Control
14.1 Open Channel Hydraulics, Manning’s Equation & Swale Design 14.2 Gutter Flow, Spread & Roadway Inlet Hydraulics 14.3 Subsurface Drainage, Catch Basins & Pipe Invert Calculations 14.4 Stormwater Storage: Detention, Retention & Water Quality Basins 14.5 Reviewing Drainage Plans & Evaluating Design Alternatives 14.6 Erosion Mechanics, RUSLE & the NPDES/SWPPP Framework 14.7 Erosion & Sediment Control BMPs, Basins & Site Stabilization
10.2 Initial Decision Maker, Communication Protocols & Project Records
Key Takeaways Explain This Topic AI
Under AIA A201 the Initial Decision Maker renders an initial decision on claims as a condition precedent to mediation, and defaults to the architect unless the parties name someone else.
The Initial Decision Maker must act impartially even when that role is filled by the architect, whose fee is paid by the owner; partiality is a breach of the contractual duty.
Communication must flow through the established chain: owner to architect to contractor, and contractor to subcontractors, because direct owner-to-subcontractor direction creates unauthorized change exposure.
Field observation reports, submittal logs, RFI logs, and change logs form the contemporaneous project record that controls in a later claim; reconstructed records carry far less evidentiary weight.
A project directory listing every party's role, authority, and contact must be issued at the pre-construction conference so that instructions from unauthorized individuals can be identified and refused.
Last updated: September 2026
1. The Initial Decision Maker (IDM) & Impartiality Standard
Under AIA Document A201 (introduced in the 2007 edition and reinforced in 2017), claims, disputes, and matters in question between the Owner and Contractor are referred initially to the Initial Decision Maker (IDM) .
Designation & Standard of Impartiality
Default Entity: The Landscape Architect (or Architect) serves as the IDM by default unless the Owner and Contractor mutually designate a separate independent third-party IDM in the Agreement.
The Standard of Impartiality (AIA A201 Section 15.2.1): The IDM is contractually mandated to render decisions impartially, showing favor neither to the Owner nor to the Contractor . Even though the Landscape Architect is hired, paid by, and serves as an agent of the Owner during general administration, the moment the landscape architect assumes the role of IDM, they must operate with judicial objectivity.
IDM Claims Procedure & Timelines
Receipt of Claim: Upon receiving a formal written claim from either party, the IDM has 10 days to take one or more preliminary actions:
Request additional supporting data or narrative from the claimant.
Reject the claim in whole or in part, stating reasons.
Recommend approval of the claim to the other party.
Suggest a compromise.
Advise the parties that the IDM is unable to resolve the claim due to lack of sufficient information or because it involves legal questions outside design expertise.
Final Preliminary Decision: The IDM must render a written decision within 30 days of receiving the claim (or within 30 days of receiving requested additional data). The decision must state the reasons and notify parties of any change in Contract Sum or Contract Time.
Condition Precedent: The IDM's preliminary decision is a mandatory condition precedent to mediation . Neither party can initiate mediation, arbitration, or litigation without first receiving the IDM's decision or waiting 30 days after claim submission without an IDM response.
2. Communication Protocols & Command Chains
Strict contractual protocols govern project communications during construction. Bypassing established command chains creates severe liability, causes misdirected instructions, and invalidates contractual warranties. COMMUNICATION CHANNELS
- │
- +--------------------------+--------------------------+
- │ │
- FORMAL PROTOCOL FORBIDDEN SHORTCUTS
- Owner ◄───► Landscape Architect ◄───► GC Owner ──X──► Contractor
- │ │ (Bypasses Design Professional)
- ▼ ▼
- Subconsultants Subcontractors Subconsultant ──X──► Subcontractor
- (Civil, Struct) (Plant, Concrete) (Direct Field Instructions)
- Primary Rules of Project Communication
Owner-to-Contractor Communication (AIA A201 Section 4.2.4): Except as otherwise provided in the contract documents, the Owner and Contractor must communicate with each other through the Landscape Architect. Direct side-agreements, verbal promises, or field instructions from the Owner directly to the General Contractor bypass the design professional's coordination, create conflicting site directions, and expose the Owner to inflated change order claims.
Design Subconsultant Communication: Subconsultants retained by the Landscape Architect (such as civil engineers, structural engineers, or irrigation specialists) must route all field observation reports, technical clarifications, and submittal reviews through the Prime Design Professional (Landscape Architect) . Subconsultants must never issue direct written or verbal instructions to the General Contractor or subcontractors.
Subcontractor Communication: Trade subcontractors (e.g., stone masons, landscape installers, earthmovers) must direct all questions, submittals, and notices through the General Contractor . If a subcontractor approaches the Landscape Architect on site asking for permission to alter planting depths or paver bedding thicknesses, the landscape architect must direct the subcontractor to consult the GC site superintendent.
3. Site Documentation, Field Reports & Project Directories
Thorough, contemporaneous written records are the landscape architect's primary legal defense against claims and regulatory investigations.
Field Observation Reports (AIA Document G711)
Following every site visit, the Landscape Architect must prepare and distribute a formal Field Observation Report within 24 to 48 hours. The report must objectively record:
Date, exact arrival/departure times, and current weather conditions (temperature, precipitation, wind, recent freeze/thaw events).
Persons present on site (owner representatives, contractor personnel, active subcontractors, testing lab technicians).
Physical work in progress and observed percentage of completion by trade.
Observations regarding general conformance with Contract Documents.
Specifically identified non-conforming work or field deficiencies, cross-referenced to drawing detail numbers and specification sections.
High-resolution photographic documentation with date, time, location, directional orientation, and descriptive captions.
Status of previously reported deficiencies (corrected, ongoing, or unresolved).
Core Administrative Tracking Logs
The Landscape Architect must maintain rigorous, up-to-date tracking logs throughout the CA phase:
Submittal Log: Tracks submittal numbers, specification sections, revision numbers, dates received, dates transmitted to consultants, dates returned to GC, and action codes taken.
RFI Log: Tracks RFI numbers, subject descriptions, dates received, required response dates, consultant coordination notes, dates answered, and whether a cost/schedule impact was indicated.
Change Management Log: Tracks Proposal Requests (PR), Construction Change Directives (CCD), and executed Change Orders (CO), recording financial amounts and calendar day adjustments.
Testing & Inspection Log: Documents all field compaction test results, concrete cylinder breaks, nursery plant delivery inspections, and topsoil testing certifications.
4. Roles, Responsibilities & Authorities Comparison
Feature / Authority Project Owner Landscape Architect General Contractor
Contractual Relationship Direct contracts with LA and GC Direct contract with Owner only Direct contract with Owner only
Means, Methods & Techniques No control or authority Strictly prohibited from directing Sole and exclusive authority
Job Site Safety & OSHA No operational responsibility Strictly prohibited from supervising Sole and exclusive responsibility
Site Observation Scope Periodic project oversight Periodic visits for general conformance Continuous daily field supervision
Reject Non-Conforming Work Possesses legal right Express contractual authority Obligated to self-correct
Issue Stop Work Order Sole and exclusive legal right Recommends in writing; no legal authority No authority to stop own work
Initial Decision Maker (IDM) Submits claims or defends claims Renders impartial decisions Submits claims or defends claims
Direct Subcontractors Must route through GC Must route through GC Directs and coordinates all trades
Approve Changes in Cost/Time Sole authority to execute COs Reviews and certifies changes Proposes costs; signs COs
5. Real-World Case Scenario: The Tree Protection Encroachment
Scenario: During a routine site visit for a new corporate campus arboretum, the landscape architect observes that the grading subcontractor has dismantled a 50-foot section of chain-link Tree Protection Zone (TPZ) fencing. A heavy tracked excavator is actively excavating a drainage trench within 6 feet of the trunk of a 48-inch DBH champion white oak ( Quercus alba ) designated for absolute preservation on Sheet L-101. Soil and fuel drums are stockpiled across the tree's Critical Root Zone (CRZ). The subcontractor informs the landscape architect that the civil engineer verbally told them during yesterday's utility walk-through that shifting the trench was acceptable.
Contractual Analysis & Resolution:
Means and Methods vs. Protection Enforcement: The landscape architect cannot physically commandeer the excavator or order the equipment operator to turn off the engine, as doing so trespasses on contractor means, methods, and site safety.
Immediate Administrative Action: The landscape architect immediately locates the General Contractor's Site Superintendent, points out the violation of Section 31 10 00 (Site Clearing) and Section 01 56 39 (Temporary Tree and Plant Protection), and issues a formal written field notice rejecting the excavation within the CRZ.
Subconsultant Breach: The civil engineer had no legal authority to verbally authorize a trench realignment directly to a subcontractor. All subconsultant directives must route through the Landscape Architect as prime professional.
Arborist Assessment & Owner Notification: The landscape architect immediately notifies the Owner and orders the project consulting arborist to the site to inspect root damage. The landscape architect recommends that the Owner issue a partial Stop Work Order in the vicinity of the tree until root pruning, pneumatic air-spading, and fence restoration are executed per specifications, with all arborist fees back-charged to the General Contractor.
6. Exam Traps & Pitfalls
The "Stop Work Order" Trap: Exam questions frequently present a contractor performing egregiously defective work and ask what the landscape architect should do. The trap choice states: "Immediately issue a Stop Work Order to the contractor." This is legally incorrect. Only the Owner has the contractual right to stop work (AIA A201 Section 2.4). The landscape architect can only reject the non-conforming work and advise the owner in writing to issue a stop work order.
The "Means and Methods" Trap: Any answer option that has the landscape architect directing how to shore a trench, which equipment to use, how to brace a retaining wall, or in what order to sequence trades is an immediate distractor. The contractor maintains sole control over means, methods, and safety.
The IDM Impartiality Trap: Exam scenarios will test whether the landscape architect, when acting as IDM, should protect the owner's budget or side with the owner because the owner pays their fees. Under AIA A201 Section 15.2.1, the landscape architect must remain strictly impartial , deciding claims based solely on the Contract Documents and the facts.
The Direct Subcontractor Communication Trap: When a subcontractor identifies a conflict or requests a change, the landscape architect cannot issue a direct instruction to that subcontractor. All formal communication must flow through the General Contractor.