  Virtual testing of automated driving systems (ADS) has become an essential
part of testing procedures for all automation levels. As ADS from automation
level 3 and up are very complex, virtual testing for such systems is
inevitable. The complexity of these levels lies in the modelling and
calculation demand for the virtual environment which consists of roads,
traffic, static and dynamic objects as well as the modelling of the car itself.
For safety and performance analyses of ADS, the most important part is the
modelling and consideration of road traffic participants. There is multiple
traffic flow simulation software (TFSS) which are used to reproduce realistic
traffic behavior and are integrated directly or over interfaces with vehicle
simulation software (VSS). For these software environments, the possibility to
manipulate traffic participants in a defined manner e.g. in the vicinity of the
vehicle under test or implementing defined driver models for traffic vehicles
is beneficial. In this paper, we present a software framework based on the
external driver model interface provided by Vissim. This framework makes it
possible to easily manipulate traffic participants for testing purposes of ADS.
