Landslides

Wherever natural terrain has been modified into graded slopes to accommodate transport routes, this gives rise to the possibility of collapse, either of the modified earthwork (especially those reliant on legacy engineering), or of the adjacent natural landform.

Modern mass transit systems and highway networks frequently traverse and bisect landscapes through cuttings and along embankments. To assist in safeguarding this infrastructure, we have developed the CRISES model to seek out interrelational landslide predisposing factors, focussed towards topography altered by engineering works.

Based on a multi-layered, remotely-sensed survey and mapping exercise undertaken by our technology partner Airbus Defence and Space, CRISES models these factors to identify locations of potentially inadequate slope shear strength.

CRISES considers the presence and combination of landslide predisposing factors, the value of the transport infrastructure at risk, and the likely consequences for this infrastructure of a landslide. The methodology’s inbuilt scoring system then differentiates slopes into seven levels of overall risk.

This approach gives safety managers unparalleled information to aid decisions on slope reinforcement intervention.

As with our other natural hazard management systems, CRISES is specifically designed to operate at national scale. We believe that CRISES offers a revolutionary, safe and highly cost-efficient means of evaluating landslide risk throughout transport networks.