Pre Measurement for Slab Track / Ballastless Track Railway Construction: Railway construction requires the highest possible performance from surveying equipment. Trimble’s GEDO CE Trolley System combined with its Trimble GEDO Track, Trimble GEDO Office, and Trimble GEDO Calc software offers the perfect toolset combination to satisfy these construction railway projects’ challenging, high-accuracy demands. The Trimble GEDO CE Trolley enables you to do all surveying tasks during and after the assembly of a railway. Whether you have to do a rough adjustment, a precise adjustment, a final construction check, or an after-project quality check – with the Trimble GEDO CE Trolley System you will have a precise surveying system which is easy-to-use and fit for all practical applications – all this independent of the railway construction method you utilize. For complete railway construction information and data processing, Trimble’s Railways Solution pairs the Trimble GEDO CE Trolley, with three powerful software suites; Trimble GEDO Track for correction values directly on site, Trimble GEDO Office for data handling with continuous and integrated data transfer, Trimble GEDO Calc for verification and documentation for the construction of slab track.