ICT’s 3-D Laser Scanning project was selected as one of the nation’s 16 high value research projects for 2011 by the American Association of State Transportation Officials (AASHTO) Research Advisory Committee.
ICT’s study found that 3-D laser scanning realized “significant man-hour savings over traditional surveying.” Scanning took 18 man-hours/mile while the conventional method took 28 man-hours/mile.
The research team, led by investigators were Dianne K. Slattery and Kerry T. Slattery of Southern Illinois University Edwardsville (SIUE), coordinated with several construction projects to obtain laser scans of initial and final conditions at the same time that the traditional surveys were being conducting. They took the laser scan information to arrive at final earthwork numbers and compared to the traditional survey earthwork numbers taken independently by the resident engineers. The team also developed software to take the information gathered by the laser scanner and calculate earthwork quantities. Additional software was developed to optimize set-up locations for laser scanner surveys. These two applications were provided to the department as part of the research.
AASHTO has four regions, and each region selected their top four projects. As one of the selected projects, the 3-D Laser Scanning project was featured during the 2011 AASHTO Research Advisory Committee meeting, and will also be featured at the Annual Meeting of the Transportation Research Board (TRB) during a poster session entitled, “State Departments of Transportation High-Value Research Projects” sponsored by AF000, the TRB Standing Committee on Design and Construction.