Measurement and Analysis of Vehicle Vibration for Delivering Packages in Small‐Sized and Medium‐Sized Trucks and Automobiles

In distribution, packaged products are subjected to the variation in vibration levels from transport vehicles that vary in frequency and acceleration while moving to their destinations. This vibration may negatively affect the product or packaging. This study measured and analysed vibration levels in vehicles commonly used to transport packages in the last leg of the package delivery service that is used by single‐parcel carriers. Using data recorders, we monitored vertical, lateral and longitudinal vibrations over 75 h of travel time in five different types of small and medium package delivery vehicles. The study presents these data as power density (PD) spectra and compares it with previously measured PD vibration levels in commercial long‐haul interstate tractor‐trailer truck shipments. Data were collected in the USA and Thailand.