ABSTRACT
Following the two updated flowcharts for rock engineering modelling and design (as presented in Figure 2.1 and Figure 3.12), we have discussed how to establish the necessary quality and quantity of the information required for a given rock engineering design and the associated modelling. The information types that each of the eight different modelling methods require have been summarised. The potential ways to obtain the necessary information for the modelling methods chosen for the given rock engineering design have also been discussed. A five step procedure is recommended for establishing the required information. It has also been noted that a key aspect is ensuring good communication between the site investigation personnel and the rock mechanics modellers and rock engineering designers.
