• G.D.E., Metallurgy, University of the Witwatersrand, Johannesburg, South Africa
• B.S. Chemistry, Harvey Mudd College, Claremont, CA
• Fundamentals of Engineering (EIT)
• Institute of Noise Control Engineers (INCE)
• American Society of Civil Engineers (ASCE)

Mr. Dennis has broad experience in many areas of engineering, including biomedical, manufacturing and industrial engineering, and has focused on transportation issues for the last five years. Since joining ATS Consulting in 2005, Mr. Dennis has played key roles in a variety of projects related to transportation noise and vibration control. Mr. Dennis has experience with both the FHWA noise modeling program TNM version 2.5 as well as CadnaA, and has programmed a number of custom applications for ATS using MATLAB.

Mr. Dennis was instrumental in the development of a vehicle positioning system to help identify and isolate corrugated rail sections and optimize rail grinding operations. The positioning system is used to correlate in-car measured noise levels to specific sections of tracks, allowing transit systems to prioritize rail grinding operations and other track maintenance, and also to track the performance of each track section over time. This system was used at Sound Transit in Seattle to identify problem areas and further testing is scheduled for BART in San Francisco.

Mr. Dennis was involved in extensive testing on the proposed 11-mile Central Corridor LRT project that will connect Minneapolis and St. Paul. The testing included ambient vibration measurements, transfer mobility measurements, and vibration predictions at a number of University of Minnesota (U of M) labs; Twin Cities Public Television broadcast studios, and Minnesota Public Radio (MPR) recording studios. Of particular note is his work in identifying track drain culverts as a source of anomalous vibration levels in downtown Minneapolis.

Representative papers and presentations >>>