Field operations require the use of heavy vehicles and equipment on unpaved agricultural fields. When soil conditions are wet, equipment can cause substantial damage, leaving deep furrows. In extreme cases, implements sink and become stuck in the mud, causing considerable delays and expense to extricate the equipment. FERIA serves as a decision support system to decide when and where a certain operation can be scheduled causing minimum soil damage and targeting high productivity at the same time. The tool works together with soil moisture sensors and accurate weather forecasts providing the modelling capability for predicting field readiness based on the input data. Managers and machinery operators can assess the fields before allocating equipment and inputs. Non-supported assessments often cause equipment and material to be dispatched to fields that are not ready for fieldwork, impacting negatively on soil compaction and yield, where economical losses can range from 9-30% annually.