Pavement design has evolved from purely empirical methods to sophisticated mechanistic-empirical approaches. At the center of this transition is the analysis of stress, strain, and displacement within layered structures under traffic loads. One of the most enduring and foundational tools used by pavement engineers worldwide for this purpose is BISAR (Bitumen Structures Analysis in Roads), developed by Shell.
The software is historically distributed through official Shell bitumen channels, academic partnerships, or licensed pavement engineering associations. bisar 30 shell software download full
An elastic layer analysis program integrated into the mechanistic-empirical pavement design software (AASHTOWare Pavement ME). Pavement design has evolved from purely empirical methods