[2] The road has over the years undergone many projects to improve traffic flow and repairing/replacing the surface, including replacing the bridges that take the A3 over the A66.

[3] In April 2011 planning was begun for a move away from the cloverleaf shape to something more suitable for higher traffic volumes, specially to remove two of the 270 degree turns.

Instead, it was proposed to adopt a variant which was developed by the Hessian Road and Traffic Administration of two left-turning, semi-direct connecting arcs.

The connecting ramps of the routes between Wiesbaden and Würzburg as well as between Cologne and Frankfurt are to be run in two lanes.

The planned variant is the best solution in terms of road safety, environmental compatibility and economic efficiency.