Vectorworks 2015 has several new site modelling improvements. The three main improvements are the changes to the visual appearance of errors in your site modeling and 2 new road tools. The changes to the visual appearance of errors in your site model are such a timesaver, several clients have pointed out how much time the small addition has saved them. The two new roads are very powerful and will certainly speed up your site modelling. The new Roadway (Custom Kerb) is really powerful and allows you to make roads of various shapes. I recently use this tool to create a car park where each side of the car park sloped to a drain.