Reinforced concrete slabs are versatile structural elements used in most types of structures. This work focuses on comparing analytical models with actual structural behaviour. Four segments of a road tunnel deck, composed of prefabricated and cast-in-situ elements, were extracted for laboratory testing. Each segment was subjected to force-controlled loading, and results were recorded in the form of force-deflection curves. The segments were examined to determine geometry, reinforcement layout in both longitudinal and transverse directions, and material properties of concrete and steel. A finite element model was developed in ANSYS Workbench to simulate the same loading conditions. The results show variability in structural response: one sample demonstrated full continuity of the deck, one exhibited medium continuity, and two showed low continuity.