In a fascinating convergence of historical revelation and modern technology, Infrasense, a leading company in subsurface scanning and evaluation, has successfully detected and mapped previously hidden trolley tracks beneath the streets of Syracuse, New York. This innovative endeavor employed 3D Ground Penetrating Radar (3DGPR) technology, allowing engineers to visualize and document the tracks that had been buried for decades.
The Background of the Discovery
the existence of these trolley tracks was initially brought to light during a thorough examination of historical records. Recognizing the importance of mapping these tracks, Infrasense set out to utilize advanced 3D scanning techniques to obtain a clear picture of what lay beneath the surface. This initiative not only seeks to preserve a part of local history but also aids in urban development strategies that may be influenced by these findings.
Survey Methodology
to carry out this survey, Infrasense deployed a sophisticated vehicle outfitted with Impulse Radar systems, specifically the Raptor-45 450-MHz 3DGPR array. This setup is equipped with a six-foot-wide antenna containing an array of 18 antennas that facilitate extensive imaging of subsurface conditions. By creating a detailed three-dimensional model of the site, the company was able to trace trolley tracks and rail sleepers effectively.
The survey required meticulous attention, which involved 12 distinct passes over the target area to ensure that each data capture overlapped sufficiently for accuracy. By integrating an electronic distance measuring instrument (DMI) and high-precision GPS systems into their data collection protocol, the team ensured that the retrieval of information was both accurate and comprehensive.
Analyzing the Results
after the data collection phase, Infrasense moved swiftly into the analysis stage, assembling the individual radar records into cohesive 3D models. These models provided significant insights into the depths and positions of the various materials present beneath the surface. By examining the contrasts at the boundaries between different materials detected by the GPR, the engineering team could pinpoint specific trolley tracks and the associated rail sleepers.
Another significant step in the process was the meticulous “picking” of data points to delineate the potential locations of these embedded structures. These identified targets were then converted into geographic coordinates, specifically latitude and longitude, for incorporation into mapping software like Google Earth or Geographic Information Systems (GIS).
What’s Next?
the results of this monumental survey have provided crucial location, length, and depth information for each section of the buried trolley tracks, conveniently displayed in tabular format. This rich dataset not only informs urban planners about the historical landscape that exists beneath contemporary cities but also plays a vital role in future infrastructure projects where ground conditions need to be taken into account.
About Infrasense
Founded in 1987, Infrasense, Inc. specializes in employing groundbreaking technologies to navigate the complexities of subsurface scanning. The company's expertise has empowered clients across various sectors to gain critical insights without disturbing the ground. Alongside their investigative surveying services, Infrasense has also spearheaded numerous research programs aimed at enhancing the fields of subsurface detection and non-destructive evaluation. For further details regarding their services and innovations, you can visit their website at
Infrasense.com.