Identifying low level barrier opportunity areas for high speed rail

A low-level barrier design has been considered as a part of the mitigation strategy for the proposed High Speed 2 (HS2) railway. An analysis of their relative performance in relation to fence type barriers was completed in order to determine their overall feasibility for possible substitution or supplementation. This involved an interrogation of the HS2 multiple source prediction methods and showed that low level barriers would provide similar or improved attenuation in certain scenarios. A set of criteria was established, and a GIS-based spatial analysis was completed to identify opportunity areas along the route for further study.