Synerail, a joint venture between Vinci, SFR, AXA Partnership Contract and TDF employed ViSiVi to easily identify the most appropriate sites for the implement of GSM-R masts across the French Railway.

RSK Orbital heli-filmed 11,000 km of the French railway in high-resolution overlapping oblique imagery, which was delivered through ViSiVi. ViSiVi’s virtual-site-visit covered every meter of the railway. Multiple GSM-R teams working throughout France could visualise the precise location of railway furniture, features and structures surrounding the asset with clarity and accuracy, in order to help identify suitable sites for their GSM-R masts.

The forward and reverse oblique photography ensured that the vertical faces of features, buildings and structures could be identified with ease. Georeferencing each image guaranteed that the XYZ of individual features could be found simply by clicking on the feature, allowing Synerail's CAD and GIS data to be overlaid onto the imagery and mapping.

ViSiVi was specifically tailored in order to feed the results of Synerail's GSM-R propagation software onto ViSiVi’s mapping. This provided a further degree of accuracy as sites could be identified using both the up-to-date imagery and wave propagation mapping. ViSiVi was a vital tool for Synerail as they could measure distances, find coordinates, draw and export information and calculate feature proximities to the railway centreline. The imagery was used in reports, public presentations and in simple email communications.

Rail Case Study