For many small civil engineering firms, the decision comes down to feature parity. While progeEARTH may lack some of the advanced parametric features found in Civil 3D (such as dynamic corridor modeling for complex highways), it covers 90% of the daily tasks required for standard subdivision design, commercial site plans, and surveying.
: Capabilities for creating Triangulated Irregular Networks (TIN) and using fault lines to control land models. Road Design / Corridor Design progeEARTH Land Development Suite