SierraSoft Roads 3.0 can be downloaded from our website for free. This software was originally designed by SierraSoft. The software lies within Photo & Graphics Tools, more precisely 3D Design.
From the developer:
SierraSoft Roads is a BIM software for the design of roads and highways. The ease of use, outstanding performance and functional design offered by SierraSoft Roads mean that the design of any kind of road, highways. SierraSoft Roads automates entire stages of the design and makes everything extremely easy; the designer always has complete control over the design data and constant access to all its information.
You may want to check out more software, such as The Road 2 Success Game, Road Estimator or ADMS-Roads, which might be similar to SierraSoft Roads.