Measuring and Assessing Long‐Duration Impacts for Truck and Trailer

Abstract

ABSTRACTA vehicle's long‐duration impacts events are experienced during turning, braking, and accelerating and decelerating. These long‐duration events are mixed with random impacts and shocks from various patterns and magnitudes. This study reports a comprehensive measurement and assessment of horizontal long‐duration impact dynamics for less‐than‐truckload (LTL) transportation. The collected horizontal impacts were synchronized with GPS data, allowing for the geographical location and identification of the event's signatures. All critical horizontal long‐duration impacts were detected by a MATLAB‐based algorithm and clustered into designated groups. A maximum collected environment and statistical analysis were assessed for the collected data, including the range, mean and cumulative probabilities. The study revealed that horizontal impacts caused by left‐turning and longitudinal braking are likely the most critical horizontal impacts. Additionally, lateral and longitudinal linear jerks were obtained for comparison with the EUMOS standard.