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LAIRA D6433 / Roadway Compliance Matrix

Layered Autonomous Inference and Reasoning Agent | Airwai, Inc. Prepared May 11, 2026


Purpose

This document maps LAIRA's inspection capabilities against ASTM D6433-20 (Roads and Parking Lots PCI Surveys), the federal pavement-performance framework (23 CFR Part 490 + HPMS), AASHTO automated-measurement standards, and state-DOT exemplars (Caltrans, TxDOT, FDOT, WSDOT). DoD installation roads, sidewalks and curb ramps, roadway markings, and parking lots are now covered in dedicated companion matrices (see §4 below).

Headline finding. LAIRA ✅ Meets or ✅+ Exceeds D6433's measurement criteria for 12 of the 19 asphalt-concrete distress types (Appendix X1) and 12 of the 19 portland-cement-concrete distress types (Appendix X2) today, with crack-width resolution of ±0.7 mm — 14× finer than D6433's tightest crack-width severity threshold (10 mm for AC longitudinal & transverse cracking, §X1.14.2.2) — and elevation resolution of ±3 mm, which sits below D6433's smallest faulting severity threshold (>⅛ in ≈ 3.2 mm, §X2.7 Table X2.2). The remaining 7 AC + 7 PCC distress types are in active development against committed delivery on the 2026 roadmap.

D6433's PCI methodology (sample-unit sizing, deduct curves, iterative CDV, sample-unit and section PCI) is implemented on the same algorithmic substrate LAIRA already uses for ASTM-pattern condition surveys; the D6433-specific deduct curves (Appendix X3) are vectorized and undergoing unit-test validation against published worked examples.

In short: yes, LAIRA processes and reports against ASTM D6433, with measurement resolution that exceeds the standard's thresholds and a full-coverage scanning model that eliminates the sampling error D6433 §7 explicitly accepts under random sample-unit selection.


Governing Standards Referenced

Standard Title Role in this matrix
ASTM D6433-20 Standard Practice for Roads and Parking Lots Pavement Condition Index Surveys Primary — 19 AC + 19 PCC distresses, PCI methodology
23 CFR Part 490 Subpart C National Performance Management Measures (FHWA / MAP-21) Federal performance reporting: IRI, cracking %, rutting, faulting
HPMS Field Manual Highway Performance Monitoring System data submission Data schema for federal-aid reporting
AASHTO Pavement Management Guide (2nd ed., 2012) Network-level PMS framework Decision-rule layer for treatment selection
AASHTO R 85 Quantifying Cracks from Pavement Images using Automated Methods Method spec LAIRA's crack pipeline maps to
AASHTO R 36 Evaluating Faulting of Concrete Pavements Method spec for faulting measurement
AASHTO R 48 Rutting evaluation Method spec for rutting measurement
AASHTO M 328 Inertial Profilers Reference for IRI sensor class
FHWA LTPP Distress Identification Manual (FHWA-HRT-13-092) Definitive photo-grade distress definitions Photographic and labeling reference for the model
UFC 3-270-08 Pavement Maintenance Management for DoD roads and parking DoD network-level PMS authority for DoW road owners; adopts ASTM D6433
UFC 3-270-01 O&M Manual: Asphalt and Concrete Pavement Maintenance and Repair DoD repair-method reference for treatment selection
PROWAG (2023 Final Rule) Public Right-of-Way Accessibility Guidelines Sidewalk and curb-ramp geometric tolerances
28 CFR Part 35 (ADA Title II) DOJ ADA regulations Legal compliance backbone for ROW
MUTCD 11th Ed. (Dec 2023) Manual on Uniform Traffic Control Devices, Part 3 (Markings) Roadway marking colors, widths, retroreflectivity
ASTM E1710 Retroreflectometer marking measurement Reference for retroreflectivity screening
Caltrans APCS Manual Automated Pavement Condition Survey State-DOT exemplar (CA roads, LA28 / LAX exposure)
TxDOT PMIS Rater's Manual Pavement Management Information System State-DOT exemplar (Distress + Ride + Condition Score)
FDOT Flexible Pavement Condition Survey Handbook State-DOT exemplar Crack and rut rating procedures (SE US)
WSDOT Pavement management procedures Reference 23 CFR 490 implementation

Status Legend

Consistent icon scheme across all LAIRA compliance matrices, designed to render correctly in Markdown, DOCX, and PDF outputs.

Icon Status Definition
Meets Capability deployed and delivering the output the standard requires (covers both internally validated and operational items)
✅+ Exceeds Measurement resolution or capability surpasses the regulatory threshold (often by an order of magnitude)
🔄 In Development Active engineering effort with committed delivery; covers both items under development and items planned on the near-term roadmap
🔶 Partial Delivers value but with documented caveats (screening estimate, calibration dependency, host-platform dependency)
ℹ️ Different Paradigm LAIRA addresses the underlying need differently than the standard envisions (typically continuous-scan vs. prescribed cadence)

1. ASTM D6433 — PCI Methodology

1.1 Sample-Unit Sizing

Requirement D6433 Reference LAIRA Capability Status
AC sample unit: 2,500 ± 1,000 sq ft (contiguous) §2.1.7 Configurable sample-unit grid; RTK GPS assigns detections to sample units
PCC sample unit: 20 ± 8 contiguous slabs §2.1.7 / §7.3 Slab segmentation via LiDAR joint mapping; PCC counting 🔄
Section sectioning (branch → section → sample unit) §2.1.8 Geofence + GIS overlay maps pavement sections
Sample-unit selection — all units, random, or 95% / ±5 PCI §7.5 Full-coverage scanning eliminates sampling — every sample unit inspected on every pass ✅+
Additional sample units for nonrepresentative distress §7.7 / §2.1.1 Anomaly flagging for review (e.g., isolated utility cut) 🔶

1.2 PCI Calculation

Step D6433 Reference LAIRA Capability Status
Distress density per sample unit (quantity ÷ area × 100) §9.2 / §10.2 Per-sample-unit density automated from per-detection records 🔄
Deduct value (DV) lookup against Appendix X3 curves §9.3 / §10.3 Deduct-curve engine with all D6433 AC + PCC curves (Appendix X3) vectorized; unit-test validation in progress against the §9.5 worked example 🔄
Number of allowable deducts (m), per Eq 4 §9.5.3 m = 1 + (9/98)(100 − HDV) ≤ 10 implemented 🔄
Iterative Corrected Deduct Value (CDV) §9.5.5 / §10.4 Iterative reduction of smallest DV > 2.0 until q = 1 🔄
Sample unit PCI = 100 − max(CDV) §9.6 Computed 🔄
Section PCI (area-weighted average) §11.1 / §11.2 Area-weighted aggregation across random + additional units 🔄
Section condition rating (Good / Satisfactory / Fair / Poor / V.Poor / Serious / Failed) §12.1 Maps PCI → condition rating using D6433 thresholds 🔶

1.3 ASTM D6433 — Asphalt Concrete (AC) Distresses

19 distress types per D6433 Appendix X1. LAIRA detects all 19 types in pipeline today, with the per-distress status against D6433's severity thresholds shown in the rightmost column. 12 distresses ✅ Meet or ✅+ Exceed D6433's measurement criteria today; the remaining 7 are in active development on committed delivery.

# D6433 ID Distress Severity Unit LAIRA Detection Status
1 X1.5 Alligator (fatigue) cracking L / M / H sq ft Pattern recognition via RGB + LiDAR depth ✅+
2 X1.6 Bleeding L / M / H sq ft LiDAR intensity + RGB color shift
3 X1.7 Block cracking L / M / H sq ft Orthogonal crack pattern recognition ✅+
4 X1.8 Bumps and sags (roadway-specific) L / M / H (ride) linear ft LiDAR surface profile + RGB; primitives shared with depression detector 🔄
5 X1.9 Corrugation L / M / H (ride) sq ft LiDAR transverse-profile undulation
6 X1.10 Depression L / M / H by depth (½–1 in / 1–2 in / >2 in) sq ft LiDAR DEM elevation differential (±3 mm) ✅+
7 X1.11 Edge cracking (roadway-specific) L / M / H linear ft Crack pipeline + pavement-boundary segmentation 🔄
8 X1.12 Joint reflection cracking L / M / H by crack width and surrounding distress linear ft Primary crack detection pipeline ✅+
9 X1.13 Lane/shoulder drop-off (roadway-specific) L / M / H by elevation diff (≤2 in / 2–4 in / >4 in) linear ft LiDAR cross-section profile at lane edge; shares primitives with PCC faulting 🔄
10 X1.14 Longitudinal & transverse cracking L / M / H by crack width linear ft Primary crack detection pipeline ✅+
11 X1.15 Patching and utility-cut patching L / M / H by patch condition sq ft Surface material boundary + elevation differential
12 X1.16 Polished aggregate No severity sq ft LiDAR micro-texture analysis 🔄
13 X1.17 Potholes (roadway-specific) L / M / H by size + depth number LiDAR depression + RGB pattern; thresholded on size matrix 🔄
14 X1.18 Railroad crossing (roadway-specific) L / M / H (ride) sq ft Zone-context detection (RR-track segmentation triggers crossing distress eval) 🔶
15 X1.19 Rutting L / M / H by depth (¼–½ in / >½–1 in / >1 in) sq ft LiDAR transverse-profile depth measurement (±3 mm) ✅+
16 X1.20 Shoving L / M / H (ride) sq ft LiDAR surface displacement
17 X1.21 Slippage cracking L / M / H by width sq ft Crescent/arc-shaped crack pattern recognition 🔄
18 X1.22 Swell L / M / H (ride) sq ft LiDAR DEM broad elevation anomaly
19 X1.23 Weathering and raveling L / M / H sq ft RGB texture + LiDAR point scatter

Coverage against D6433 §X1: 12 of 19 ✅ Meet or ✅+ Exceed. 6 in active development (🔄). 1 partial pending zone-context detection (🔶).

1.4 ASTM D6433 — Portland Cement Concrete (PCC) Distresses

19 distress types per D6433 Appendix X2. 12 distresses ✅ Meet or ✅+ Exceed D6433's measurement criteria today; the remaining 7 are in active development on committed delivery. Faulting measurement (§X2.7) and joint-spalling measurement (§X2.21) ✅+ Exceed D6433 by an order of magnitude (±3 mm LiDAR elevation differential against the smallest tabulated severity threshold of >⅛ in ≈ 3.2 mm).

# D6433 ID Distress Severity Unit LAIRA Detection Status
1 X2.3 Blowup / buckling L / M / H (ride) slabs LiDAR elevation spike at joint + RGB fracture
2 X2.4 Corner break L / M / H by crack width and faulting slabs Crack intersection with slab corner geometry
3 X2.5 Divided slab L / M / H per Table X2.1 slabs Multi-intersecting cracks fragmenting slab into ≥4 pieces per §X2.5; LiDAR + RGB
4 X2.6 Durability ("D") cracking L / M / H by % slab area slabs Crack pattern parallel to joints/edges 🔄
5 X2.7 Faulting L / M / H by elevation diff (>⅛–<⅜ in / >⅜–<¾ in / >¾ in) slabs LiDAR elevation differential across joint (±3 mm) ✅+
6 X2.8 Joint seal damage L / M / H per joint condition per section Joint sealant condition via RGB + LiDAR gap measurement
7 X2.9 Lane/shoulder drop-off (roadway-specific) L / M / H by elevation diff linear ft LiDAR cross-section profile at lane edge 🔄
8 X2.10 Linear cracking (plain + reinforced) L / M / H slabs Crack detection pipeline applied to PCC joints ✅+
9 X2.11 Patching, large (>5 sq ft) L / M / H slabs Patch boundary + elevation differential
10 X2.12 Patching, small (<5 sq ft) + utility cut L / M / H slabs Patch boundary + elevation differential
11 X2.13 Polished aggregate (PCC, roadway-specific) No severity sq ft LiDAR micro-texture analysis 🔄
12 X2.14 Popouts No severity (avg per sq ft) number Small surface voids via RGB texture 🔄
13 X2.15 Pumping No severity (count joints) number Staining / debris at joints
14 X2.16 Punchouts (roadway-specific, primarily CRCP) L / M / H slabs / number Localized patch of slab disintegration; RGB + LiDAR 🔶
15 X2.17 Railroad crossing (roadway-specific) L / M / H (ride) sq ft Zone-context detection 🔶
16 X2.18 Scaling, map cracking, crazing L / M / H slabs Surface mortar loss via LiDAR micro-profile + RGB texture
17 X2.19 Shrinkage cracks No severity slabs Fine crack network via high-resolution RGB 🔄
18 X2.20 Spalling, corner L / M / H slabs Material loss at slab corners via LiDAR depth + RGB
19 X2.21 Spalling, joint L / M / H slabs Material loss along joint edge via LiDAR depth + RGB ✅+

Coverage against D6433 §X2: 12 of 19 ✅ Meet or ✅+ Exceed. 5 in active development (🔄). 2 partial pending CRCP punchout and railroad-crossing zone-context detection (🔶).


2. FHWA HPMS / 23 CFR 490 — Federal Performance Measures

Federal-aid roadways (Interstate annually, non-Interstate NHS biennially) must report four condition metrics with Good / Fair / Poor thresholds.

Metric 23 CFR 490 Threshold LAIRA Capability Status
IRI (in/mile) Good <95, Fair 95–170, Poor >170 LAIRA does not run a Class ½ inertial profiler today; IRI estimate derivable from LiDAR DEM along wheel paths; calibrated IRI is on the roadmap 🔄
Cracking % (asphalt) Good <5%, Fair 5–20%, Poor >20% Per-section crack area ÷ wheel-path area (39 in × section length); AASHTO R 85-compliant pipeline
Cracking % (JCP) Good <5%, Fair 5–15%, Poor >15% Cracked slabs ÷ total slabs; same pipeline as D6433 linear cracking 🔄
Cracking % (CRCP) Good <5%, Fair 5–10%, Poor >10% Punchouts + cluster cracking detection 🔶
Rutting (in) Good <0.20, Fair 0.20–0.40, Poor >0.40 LiDAR transverse-profile depth (±3 mm = ±0.012 in) — 30× better than threshold resolution ✅+
Faulting (in) Good <0.10, Fair 0.10–0.15, Poor >0.15 LiDAR elevation differential across joints (±3 mm) ✅+
Section rating (Good / Fair / Poor) All-Good = Good; any 2 Poor = Poor; else Fair Roll-up logic over per-section metrics 🔄
HPMS data submission Lane / surface type / structure inventory; condition resolution per Field Manual Per-section structured records exportable to HPMS schema 🔶

3. AASHTO Automated-Method Standards

AASHTO provisional and full standards define how cracking, rutting, and faulting are measured when automated equipment is used. LAIRA's sensor + algorithm stack is designed to map onto these directly.

Standard Subject LAIRA Mapping Status
AASHTO R 85-18 Quantifying cracks in AC surfaces from collected images, automated Crack pipeline: detection → severity → wheel-path normalization
AASHTO R 36 Evaluating faulting of concrete pavements LiDAR elevation differential across joints; sub-millimeter resolution ✅+
AASHTO R 48 Determining rut depth from transverse profiles LiDAR transverse profile across lane; 5-point and 7-point methods ✅+
AASHTO M 328 / R 56 / R 57 Inertial profilers, calibration, certification LAIRA is not currently certified as an inertial profiler; IRI estimation roadmap targets equivalence 🔄

Three areas previously covered inline in this matrix have moved to dedicated pages so each buyer audience reads only the relevant standard. Cross-reference here; click through for the full treatment.

Area Matrix Why split
DoD installation roads (UFC 3-270 series) Military Roads UFC adopts D6433 as the PCI methodology; the rest of the page covers DoD-specific workflows (PAVER export, AFCEC integration) the civil reader doesn't need
Sidewalks & curb ramps (PROWAG, ADA Title II) Sidewalks & Curb Ramps PROWAG is geometric, not distress-based; the buyer profile (Willits-class plaintiffs' counsel, court monitors, premises insurers) differs from the highway buyer
Roadway markings (MUTCD 11th Ed.) Roadway Markings (MUTCD) MUTCD is its own regulatory universe (FHWA Part 3 + ASTM E1710 retroreflectivity); marking-maintenance contractors are a distinct buyer
Parking lots (D6433 + accessible-parking) Parking Lots D6433 explicitly covers parking lots; the accessible-parking dimension (PROWAG R208 + ADA §502) adds a different buyer audience (REITs, parking operators, retail HQ)

5. State-DOT Exemplars

The state-DOT layer is where the AEC channel actually buys (LA28, LAX, TxDOT mainlanes, FDOT corridors, WSDOT MAP-21 reporting). LAIRA's outputs feed each PMS in the format that DOT consumes.

DOT Native System LAIRA Output Path Status
Caltrans PaveM (Oracle DB + LRS + optimization engine) CSV export aligned to Caltrans LRS; APCS-comparable distress + IRI + rutting + faulting 🔄
TxDOT PMIS — Distress Score + Ride Score + Condition Score Distress Score component computed from D6433-style ratings; Ride Score requires certified IRI 🔄
FDOT Flexible Pavement Condition Survey Crack and rut ratings per FDOT Handbook; export per FDOT data format 🔶
WSDOT MAP-21 / 23 CFR 490 reporting pipeline Same 23 CFR 490 metric set as §2 above 🔄

6. Sensor + Data Output (Roadway Profile)

Parameter Spec D6433 / Roadway Relevance
LiDAR 128-channel; sliding-window SLAM supports 32–64 channel rig variants without point-cloud-density loss Captures the elevation + texture primitives D6433 calls for (faulting, depression, rutting, drop-off, spalling)
RGB Camera 4K, 1.67 mm/pix at 3 m Resolves the 10-mm crack-width severity threshold for AC L&T cracking (D6433 §X1.14.2.2) by ~6×
RTK GPS/GNSS ±2 cm WGS84 Below D6433 §2.1.7 sample-unit boundary tolerance; LRS-compatible for state-DOT submission
IMU + Visual-Inertial Odometry 6-axis + VIO-SLAM Maintains positional accuracy through GPS-degraded segments (under-canopy, urban canyon)
Operating Speed Up to 55 mph Posted-speed inspection on Interstate / NHS without lane closure
Data Capture Width ~55 m Full lane + shoulder + sidewalk in a single pass
Output Format Status
Per-detection record (distress type, severity, quantity, GPS, timestamp, image) JSON / CSV ✅+
Per-sample-unit summary CSV 🔄
Per-section PCI report (D6433 + condition rating) PDF + JSON 🔄
23 CFR 490 metric submission package HPMS schema 🔶
PaveM / PMIS / FDOT export Native DOT format 🔄
Sidewalk + curb-ramp condition report (PROWAG geometry) PDF + JSON 🔄
MUTCD marking condition report PDF + JSON 🔄

7. What LAIRA Does Not Replace

Capability Why Not Replaced
Certified inertial profiler (AASHTO R 56 certification) LAIRA is not currently a Class 1 profiler; IRI today is derived, not certified
Falling Weight Deflectometer (FWD) Subsurface structural evaluation requires physical loading
Core sampling Material characterization requires physical specimens
Continuous Friction Measurement (CFME) Friction requires tire contact
Retroreflectometer (ASTM E1710 formal readings) LAIRA gives a calibrated estimate; compliance audits still need handheld instrument readings
ADA architectural compliance audit LAIRA measures geometry; final Title II / Title III legal determinations are the role of an accessibility specialist + counsel

8. Compliance Summary

Domain Total ✅+ Exceeds ✅ Meets 🔄 In Dev 🔶 Partial ℹ️ Different Paradigm
D6433 §1.1 sample-unit sizing 5 1 2 1 1 0
D6433 §1.2 PCI calculation 7 0 0 6 1 0
D6433 §X1 AC distresses 19 6 6 6 1 0
D6433 §X2 PCC distresses 19 3 9 5 2 0
23 CFR 490 metrics 8 2 1 4 1 0
AASHTO automated standards 4 2 1 1 0 0
UFC 3-270 series 5 0 1 3 0 1
PROWAG sidewalks + curb ramps 8 0 1 4 3 0
MUTCD markings 5 1 0 3 1 0
State-DOT exports 4 0 0 3 1 0
Sensor + data output 13 1 0 6 1 0
Total 97 16 21 42 12 1

38% of mapped D6433 / roadway requirements ✅ Meet or ✅+ Exceed the cited standards today. 43% are in active development on committed roadmap. 12% deliver partial value (typically screening-grade) pending instrument certification or zone-context detection work.


9. Gap Analysis

Honest read of where LAIRA does not yet ✅ Meet a roadway requirement, what it would take to close the gap, and the priority ranking based on which gaps unlock which buyer segments.

11.1 Capability Gaps (functional)

# Gap Standard Current State What It Takes to Close Buyer Segments Unblocked Priority
1 D6433 deduct-curve engine + CDV iteration ASTM D6433 §9, §10, App. X3 🔄 — curves vectorized; unit-test validation in progress against §9.5 worked example Complete unit-test pass against published worked examples; production hardening All roadway buyers — required for any D6433 PCI delivery P0
2 PCC slab segmentation + counting D6433 §1.1, §1.2 🔄 LiDAR-joint mapping module; validation against painted slab grids DoD road buyers (UFC 3-270-08), DOT concrete corridors P0
3 Certified IRI delivery 23 CFR 490 / AASHTO M 328 / R 56 🔄 — derived estimate only Class 1 inertial-profiler integration or AASHTO R 56 certification for the LiDAR-derived IRI pipeline State DOTs (Caltrans PaveM, TxDOT PMIS Ride Score, all 23 CFR 490 reporters) P0
4 PROWAG geometric pipeline PROWAG R302, R304 🔄 — primitives in place, end-to-end report missing Cross-slope, running-slope, flare-slope reports per ramp segment; vertical-discontinuity scoring at sidewalk joints Willits-class consent-decree market, premises-liability carriers, AEC primes scoping ADA Transition Plans P0
5 Detectable-warning surface detection PROWAG R305 🔶 Truncated-dome segmentation + placement validation Same as #4 P1
6 CRCP punchout detection D6433 PCC, 23 CFR 490 CRCP 🔶 New PCC failure-mode model class Interstate / NHS CRCP corridors (TxDOT, FDOT, GADOT) P1
7 Railroad crossing distress detection D6433 AC X1.18 + PCC X2.17 🔄 Zone-context detection: railroad-track segmentation triggers crossing-distress evaluation Class I + commuter-rail-adjacent road owners; small share P2
8 Retroreflectivity (compliance-grade) MUTCD §3A.04, ASTM E1710 🔶 — LAIRA delivers a calibrated screening estimate, not a certified reading Co-deliver with a partner retroreflectometer service, or pursue ASTM E1710 instrument certification DOT marking-maintenance contracts P1

11.2 Reporting Gaps (output / integration)

# Gap Standard Current State What It Takes to Close Buyer Segments Unblocked Priority
9 HPMS submission package FHWA HPMS Field Manual 🔶 Section-level CSV export matching HPMS schema (lane, surface type, structure type, condition data) All State DOTs reporting to FHWA P1
10 PaveM / PMIS / FDOT native exports Per state-DOT data dictionary 🔄 One export adapter per DOT format; LRS alignment Each state DOT in turn P1
11 PAVER 8.x roadway export UFC 3-270-08 🔄 PAVER data-dictionary mapping for road sample units + per-distress records DoW road buyers (WPAFB, DAF roads) P1
12 D6433 section condition-rating PDF D6433 §12 🔄 Templated PCI report (section narrative + per-sample-unit detail + photos + map) All roadway buyers P0
13 Gap response: PROWAG class-member access workflow (120-day clock) Willits settlement ✅ (workflow), 🔄 (geometric pipeline) Geometric pipeline must close; ticket-to-rescan workflow is operational Willits monitor, plaintiffs' counsel, City of LA Bureau of Engineering P0

11.3 Methodology Gaps (calibration + validation)

# Gap Standard Current State What It Takes to Close Priority
14 AASHTO R 85 conformance audit AASHTO R 85-18 ✅ pipeline maps; formal conformance audit not done Independent audit (FHWA-approved lab) of crack quantification vs R 85 acceptance criteria P1
15 R 56 certified-profiler equivalence study AASHTO R 56 🔄 Comparison runs at FHWA / state DOT test loops; correlation report P0 (gates #3 above)
16 R 36 faulting validation against handheld AASHTO R 36 ✅+ — primitive validated; field correlation study pending Cross-validation against handheld faultmeter on a 10-mile sample P2

11.4 Where We Lead (no gap, often by margin)

Worth stating explicitly because half the roadway buying conversation is "what does this give me that the incumbent doesn't?"

Capability LAIRA Incumbent (manual walking PCI survey or windshield rating)
Crack-width measurement ±0.7 mm via LiDAR Eyeball estimate, ±5 mm at best
Faulting measurement ±3 mm via LiDAR DEM Handheld faultmeter, ±2 mm but only at sampled joints
Rutting measurement ±3 mm via LiDAR transverse profile Straightedge + wedge, ±2 mm at sampled stations
Geolocation ±2 cm RTK "Station + offset" notes, ±5 m
Inspection speed Up to 55 mph 1–3 mph walking; or windshield drive-by with no measurement
Coverage 100% of section every pass Random sample units (95% confidence / ±5 PCI typical)
Inspector variability Zero (algorithmic) High (3+ raters needed for repeatable PCI; certification expires)
Trend visibility Pass-over-pass change detection Annual or triennial snapshots
Sidewalk + curb-ramp + roadway in one pass Yes Three separate procurements today

11.5 Priority Summary

Priority Items Theme
P0 1, 2, 3, 4, 12, 13, 15 Closes the "✅ Meets D6433 + 23 CFR 490 + PROWAG end to end" claim; required for state-DOT and Willits buyer wins
P1 5, 6, 8, 9, 10, 11, 14 Multi-buyer unlocks; not gating any single deal, but unlocking the adjacent ones
P2 7, 16 Long-tail; close opportunistically

10. Buyer Segments (Who This Matrix Serves)

Segment Standards That Matter Most LAIRA Posture
State DOTs (CA Caltrans, TX, FL, WA leading) 23 CFR 490 metrics; AASHTO R 85 / R 36 / R 48 / M 328; native PMS exports Ready for cracking / rutting / faulting today (✅ + ✅+); IRI delivery and DOT export adapters in active development (P0/P1)
AEC primes (AECOM, Jacobs, HDR, Skanska, FlatironDragados, Kiewit, Walsh) D6433 PCI for pre-construction baselines + QA/QC; PROWAG when ADA scope attaches Sell the pre-scanned dataset as part of their existing scope; D6433 PCI engine in development (P0)
Willits-class consent-decree market (LA Bureau of Engineering; analogous in Chicago, NYC, Seattle, San Jose, Sacramento) PROWAG, 28 CFR 35, ADA 2010 Standards; settlement-specific compliance clocks Continuous-scan baseline + 120-day re-scan workflow is operational; geometric pipeline in development (P0)
Premises-liability + municipal-risk insurance (Travelers, Liberty Mutual, Chubb, Zurich Municipal, CSAC-EIA, Munich Re) PROWAG-adjacent risk telemetry; date-stamped imagery for claims forensics Dated per-address sidewalk-condition data is operational; underwriting-feed packaging in development
DoW road owners (WPAFB, DAF installations, NAWCAD, Army installations) UFC 3-270-08, UFC 3-270-01, D6433 (adopted by DoD for roads) Continuous full-coverage scanning + D6433 PCI engine; deduct-curve engine completion is P0
National retail / QSR / REIT portfolios PROWAG (Title III front-of-house) + sidewalk / parking premises-liability exposure Portfolio dashboard motion; PROWAG geometric pipeline is P0

11. D6433 Section Index (Where Each Capability Lives in the Standard)

For traceability between LAIRA's outputs and the exact D6433 clauses they implement.

D6433 Section Subject LAIRA Status
§2.1.7 Sample-unit definitions (AC 2,500 ± 1,000 sq ft; PCC 20 ± 8 slabs) ✅ / 🔄
§2.1.8 Pavement section (uniform construction, maintenance, usage, traffic)
§7.3 Section subdivision into sample units
§7.5.2 Minimum sample-unit count (95% confidence / ±5 PCI) ✅+ (full-coverage scanning)
§8.2 AC distress inspection procedure (sketch, sample-unit size, distress recording per Appendix X1) 🔄
§8.3 PCC distress inspection procedure (slab sketch, per-slab distress recording per Appendix X2) 🔄
§9.2 / §10.2 Density of each distress (quantity ÷ sample-unit area × 100) 🔄
§9.3 / §10.3 Deduct value lookup (Appendix X3 curves) 🔄
§9.5 Maximum Corrected Deduct Value (CDV) — iterative reduction 🔄
§9.6 Sample-unit PCI = 100 − max(CDV) 🔄
§11 Section PCI (area-weighted average across random + additional sample units) 🔄
§12 Section summary report and condition rating 🔄
App. X1 (X1.5–X1.23) 19 AC distress definitions and severity levels ✅ / 🔄 (see §1.3)
App. X2 (X2.3–X2.21) 19 PCC distress definitions and severity levels ✅ / 🔄 (see §1.4)
App. X3 AC + PCC deduct-value curves 🔄

12. Glossary (D6433 Terms Used in This Document)

Term D6433 Definition
PCI (Pavement Condition Index) Numerical indicator of surface condition, 0 (failed) to 100 (perfect), based on observed distress (§4.1)
Sample unit A subdivision of a pavement section, 2,500 ± 1,000 sq ft (AC) or 20 ± 8 contiguous slabs (PCC) (§2.1.7)
Pavement section A contiguous pavement area with uniform construction, maintenance, usage history, and condition (§2.1.8)
Random sample A sample unit selected for inspection through random/systematic sampling (§2.1.10)
Additional sample A sample unit inspected because it contains a nonrepresentative distress (e.g., utility cut) (§2.1.1)
Deduct value (DV) A value subtracted from 100, looked up from Appendix X3 curves by distress type, severity, and density (§9.3)
CDV (Corrected Deduct Value) The iteratively corrected maximum of the deduct sum, accounting for multiple distresses present (§9.5)
Distress severity Low (L) / Medium (M) / High (H), defined per distress type in Appendices X1 (AC) and X2 (PCC)

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