TdMod (traffic-dependent modification) is offered from vs | plus version 6.2.0. 

TdMod is based on the principle of modifying a running frame signal plan. If the condition of the intervention for the modification is fulfilled, a part of the frame signal plan is replaced by a parameterised snippet. This "new" frame signal plan is active for one cycle. The sequence of these interventions can also be controlled with incompatibilities.

The parameterisation of TdMod has been revised as of vs | plus 8.1.0. 

Find out more about how it works in the vs | academy.