The Western High—Speed Diameter is a toll highway passing through the city of Saint Petersburg (Russia). The highway is ~47 km (29 miles) long. This road is divided into three sections: north, south, and central. The northern section is located in the suburban part of the city. The central and southern sections run through the city and contain three bridges and a tunnel.

Some features of the map:
- Various weather presets;
- The main road has been created on a 1-to-1 scale;
- 400+ unique custom models;
- Various weather presets;
- Support of the night;
- LOD system;
- AI support;
- CK Map Controller.

In version 0.2.6:
- The map has been fixed for patch 0.39. For versions below (for example, 0.36), download this version!