Full-Scale Testing of Devices to Reduce Splash and Spray from Heavy Trucks

摘要

The overall objective of this study was to provide detailed full-scale measurements of the effectiveness of several splash and spray suppression devices on large trucks. The results showed that visibility can be improved incrementally by adding spray suppression devices (e.g., a drag shield on the tractor, or side skirts or 'textured' flaps at the various wheel locations). The results also showed that combinations of devices can give a significant improvement in visibility for van semi-trailer configurations. A further result was that van semi-trailers are more amenable to treatment than tankers or flatbeds. Good correlation was found between spray tunnel results and full-scale results.