Tennessee DOT

Project Overview
In August 2024, the Tennessee Department of Transportation (TDOT) required swift and comprehensive pavement data collection across approximately 12,000 miles of state roads and ramps. We responded promptly, deploying five IrisPRO Pave vans equipped with the latest in automated pavement condition survey systems. This project showcased the agility and technological prowess of our team, with data collection completed in a remarkable five-week timeframe, while adhering to the stringent standards set by AASHTO and ASTM.
Client Background and Challenges
TDOT faced significant mobilization and execution challenges with their previous vendor, which impacted their ability to meet crucial reporting deadlines and manage their pavement assets effectively. The need for a rapid and reliable data collection service was paramount to avoid delays in federal reporting and to enhance the management of their pavement systems.
Our Approach
We utilized our advanced Drive™-based collection platform, which enabled quick deployment and efficient coordination among the fleet of survey vans. This innovative system synchronizes data daily with the office database and distributes workload updates to ensure comprehensive coverage without overlap. Additionally, the use of the Ladybug 5+ 360° camera eliminated the need for multiple cameras and alignment issues, while our LCMS-2 system provided superior crack detection by tailoring parameters to each pavement type.
Execution and Overcoming Challenges
The primary challenge was the rapid mobilization required by TDOT. Our team’s readiness and the efficiency of our Drive™ collection platform were crucial in meeting this demand. Through diligent planning and execution, we not only met but exceeded the project’s stringent timelines.
Results and Impact
The swift and effective data collection allowed TDOT to meet their critical October 15, 2024 deadline, crucial for HPMS reporting. The comprehensive data collected was integrated seamlessly into TDOT’s Pavement Management System (PMS), facilitating timely and informed decision-making for road maintenance and improvements. The project setup, including control sites, a customized Data Quality Management Plan (DQMP), and report configuration, was completed expediently, demonstrating our capability to handle urgent and large-scale projects efficiently.
Client Feedback
While specific feedback from TDOT is pending, the successful completion of this project under tight deadlines and the subsequent satisfaction of HPMS requirements are testaments to the quality and reliability of our services.
Key Takeaways
This project not only reinforced our ‘Client First’ value but also demonstrated our commitment to ‘Develop Expertise’ in field operations under challenging conditions. Lessons learned include the importance of readiness for rapid mobilization. These insights will guide future projects, ensuring continued excellence in service delivery and client satisfaction.