Profilometer Terrain Measurement System

Statement of Work (SOW) / Performance Work Statement (PWS)

To provide the U.S. Army Aberdeen Test Center (ATC) with a stand-alone, highly mobile off-road test course and terrain measurement system. This system will consist of a prime mover with an integrated sensor suite, data collection hardware, and software to meet technical, training, and documentation requirements.

• Development of a mobile off-road terrain measurement system (Profiler).

• The system includes a rugged off-road capable prime mover vehicle and a data collection system comprising micro-terrain measurement instrumentation and an Inertial Navigation System (INS).

• The INS will correlate scan data to a common earth-referenced coordinate system using a high-grade Inertial Measurement Unit (IMU) and differential Global Positioning System (GPS).

• An end-to-end software package for system control, processing, and data analysis is required.

• The system must be capable of traversing various ATC test courses, including endurance and performance courses, and collecting data on terrain roughness.

• The system must accurately measure inputs into vehicles under test.

• Software outputs must be user-accessible and readable by programs like MATLAB or Python.

• Specific outputs include surface scanner data, INS solutions, GPS data, merged surface scan XYZ points, and identified features like potholes, ruts, and washboarding.

• The system must meet defined thresholds and objectives for various parameters, including breakover angles, approach/departure angles, ground clearance, and operational noise levels.

• Scanning resolution must be sufficient to detect features ranging from small pebbles to large rocks and humps, with specific precision requirements at various speeds.

• The contract is for a system to be used at the U.S. Army Aberdeen Test Center (ATC).

• Deliverables include the system and complete documentation, to be supplied XX months after contract award.

• The prime mover must be capable of traversing difficult off-road terrain, secondary roads, and cross-country roads.

• The system must be operable year-round in a non-climate-controlled facility.

• The prime mover must comply with Maryland Title 24 Vehicle Laws.

• The system must be cleanable after use in wet, muddy, or dusty conditions.

• The system must be operable on public roads without special considerations.

• The system must be maintainable by operators, with operation manuals, parts lists, and tool lists provided.

• Training for system operation and maintenance must be developed and provided.

• Data must be exportable in a non-proprietary format (e.g., .csv) and visualized/processed quickly.

• Software must be Army Golden Master (AGM) Compliant.

• The system must include safety equipment and indicators.

• A Quality Assurance Surveillance Plan (QASP) is attached separately.

• Contractor-furnished equipment and services are required.

Form / Attachment / Pricing Sheet

This document is a checklist form for a PROFILOMETER system, detailing requirements for its prime mover, sensor, and data capabilities. It distinguishes between mandatory threshold requirements (in black) and optional objectives (in blue).

I. Prime Mover Requirements: Covers terrain traversal, drive systems (4WD, locking differentials), protection (skid plates), cab specifications (occupancy, noise, climate control), road operability, washability, storage resilience, maintenance limitations, test course speeds, backup camera, recovery provisions, and tire specifications.

II. Sensor Requirements: Addresses controls operability, external indicators, mounting for shock/vibration, assembly/disassembly time, recording duration, offline operation, soil compensation, time basis signal, scan speed capabilities, GPS/INS integration, documentation provision, scan width adjustability, environmental protection (IP ratings), GUI control, reference establishment for elevation tracking, precision for detecting small and large features, long-distance grade detection, safety equipment, and vertical scanning range.

III. Data Requirements: Outlines data export formats (non-proprietary), visualization/reporting timelines, software integration with IMU data, required data fields (GNSS, INS, vehicle position, sensor measurements, etc.), error visualization and correction, 3D rendering capabilities, automatic feature detection, detection of water-filled features, Army Golden Master (AGM) compliance, and real-time data display.

This checklist serves as a detailed specification for a PROFILOMETER system. Bidders must use this document to understand the mandatory and desired technical specifications for the prime mover, sensors, and data handling capabilities. It is crucial for developing proposals that meet or exceed these requirements, particularly concerning performance, environmental resilience, data accuracy, and operational capabilities in various terrains and conditions.

Form / Attachment / Pricing Sheet

This document, titled "APPENDIX A. ATC LASER PROFILER.", contains a graphical representation of data related to "Belgian Block Laser Profiler HMMWV Wheelpaths". It illustrates an example of body roll cancellation from a track.

• The figure displays two parallel profile lines (one green, one red) plotted against X-Position in meters.
• The Y-Position is also in meters, with a range from approximately 761 to 763.5.
• Shaded blue areas around the lines likely represent a confidence interval or data spread.
• The X-axis ranges from approximately 595 to 607 meters.
• The figure is labeled as "Figure A-4. Parallel profile lines falling with wheelpath point clouds."

This attachment provides visual data that may be relevant for understanding the technical specifications, performance metrics, or testing methodologies associated with the opportunity. Bidders should review this figure to assess its relation to any requirements for vehicle performance, track condition, or measurement techniques.

Form / Attachment / Pricing Sheet

This document provides detailed off-road vehicle measurement specifications, including ground clearance, approach/departure angles, and breakover angles. It presents these measurements for three specific vehicle platforms: a 4-Door Chevrolet Colorado ZR2, a 4-Door Ford Ranger Raptor, and a 4-Door Jeep Wrangler Rubicon. The document explicitly states that this is not a comprehensive list of vehicle platforms nor a requirement to use any of these specific platforms.

• Ground Clearance: Minimum and at breakover point.
• Angles: Approach, Departure, and Breakover.
• Vehicle Examples: Specific measurements for Chevrolet Colorado ZR2, Ford Ranger Raptor, and Jeep Wrangler Rubicon.
• Note: Clarification that these are examples, not mandatory platforms.

This attachment provides critical dimensional and performance parameters for off-road vehicles. Bidders may need to use this information to ensure any proposed vehicles or solutions meet the specified geometric constraints and performance capabilities relevant to the opportunity. Understanding these measurements is essential for determining vehicle suitability and compliance with potential requirements.

Questions & Answers / Clarifications

This document provides answers to vendor questions regarding a system procurement, clarifying technical requirements and operational parameters.

• Measurement Range: The system must have a measurement range of at least 510 mm.
• Obstacle Measurement: The maximum size of obstacles to be measured is 450 mm.
• Operational Duration: The system is required to operate continuously for at least 4 hours.
• Drone Suitability: Drones equipped with lidar are not considered sufficient for test course profiling due to the need to measure compressed soil after vehicle passage and current resolution limitations.
• Vehicle Platform: The system must be built on a commercially available rugged 4WD vehicle platform with at least 350mm ground clearance and a breakover angle of 25 degrees or more.
• Vehicle Platform Acquisition: The vendor is responsible for acquiring the vehicle platform and integrating the measurement system before delivery.
• Operating Speed Range: The system must accurately measure within a speed range of 5 mph to 55 mph.

These clarifications provide specific details on system capabilities, platform requirements, and operational constraints that bidders must consider when preparing their proposals.

Forms / Attachments / Pricing Sheets

This document is a Quality Assurance Surveillance Plan (QASP). It is a government-developed document used to determine if a contractor's performance meets the performance standards outlined in a contract. The QASP establishes procedures for the assessment and inspection process, detailing what will be monitored, how monitoring will occur, who will conduct it, and how efforts and results will be documented.

• Vision: Describes the project goal of providing a stand-alone, highly mobile off-road test course and terrain measurement system.
• Purpose: Outlines the QASP's role in continuous government oversight of contractor performance.
• Authority: Cites FAR Part 46, Inspection of Services clauses.
• Roles and Responsibilities: Defines roles for Program/Project Manager (PM), Contracting Officer (KO), and Contracting Officer's Representative (COR), as well as contractor representatives (Program Manager, Task Manager).
• Performance Requirements and Method of Surveillance: Details contract surveillance goals, the Surveillance Matrix (Attachment 1) which lists performance objectives and standards, and performance rating definitions (Excellent/Outstanding, Very Good, Good, Marginal, Unsatisfactory).
• Performance Reporting: Lists types of reports including Performance Assessment Report, Customer Complaint Form, and Corrective Action Report (CAR).
• Appendices: Includes a Surveillance Matrix detailing specific Performance Objectives (PO) and Elements (PE) with associated standards, inspection methods, and timing.
• Forms: Includes templates for a Corrective Action Report (CAR), Customer Complaint Record, and Performance Assessment Report (PAR).

While this document is a government surveillance plan and not a solicitation or SOW, it provides critical insight into how contractor performance will be evaluated. Bidders can use this QASP to understand the government's expectations regarding performance standards, metrics, and reporting requirements. This information is vital for developing a robust Quality Control Plan and ensuring compliance with contract terms. The detailed performance objectives and rating definitions highlight areas of focus for successful contract execution.