A full non-metallic trailer for GPR road surveys

In this work, the design and construction of a special trailer designed to evaluate traffic infrastructure with GPR is presented. This trailer is adapted to the requirements of a multipurpose GPR system and different ground-coupled antennas to allow for multi-frequency surveys of roads without obstructing traffic. The prototype presented in this work is completely non-metallic, allowing massive data acquisition at a cruising speed up to 80 km/h. It provides the possibility of carrying two bowtie antennas simultaneously with a simple mechanism that allows for changing the elevation from the roadbed to the antenna/s for adequate and safe operation. The work includes the results of tests conducted to evaluate the performance of the system under different field work conditions.