The "eOperator" is a software application which serves as the central processing unit for monitoring an extensive and emission-free mobility concept for cities. It enables the operator to analyze and solve problems and to optimize his multimodal fleet service regarding the following four areas: energy, traffic, finances and advertising. Big amounts of data and important live-information are presented in a well-structured way via the adaptive and user-centered interface concept. Through helpful indications and tips the operator should continuously be animated to take actions and make decisions which are both economically and ecologically profitable. The goal is to maximize the efficiency of the entire fleet.