Vehicle's Shock Absorbing Capacity and Roadway Rumble Strips

Roadway rumble strips are used to reduce driving comfort and make drivers decelerate. While vehicle suspension systems are designed for passengers' comfort by absorbing vibrations caused by bumping roadway surface, roadway rumble strips are implemented to alert motorists to reduce speed. An efficient and safe roadway rumble strips design depends on the understanding of the vehicles' suspension system. Newer marked vehicles always have better suspension system that can absorb higher vibrations. This paper investigates the relationship between vehicle suspension system and roadway rumble strips design through TruckSim, a computer simulation model for trucks. The study analyzes the various shock-absorbing effect of current popular vehicle suspension systems on the roadway rumble strips designs in order to evaluate roadway rumble strips effectiveness in speed reduction.