Intelligent Transportation Systems (ITS), when employed on public buses, have the potential for improving overall coordination of bus transit systems. In this paper, their potential for improving bus driver effectiveness is examined. Analysis of data gathered Corn observations at nearly 300 bus stops indicates that while ITS may have a small potential for improving driver effectiveness, current practices among drivers and passengers alike are likely to limit actual gains. The clearest benefits of ITS come in the automatic processing of information related to transferring passengers, and in the increased speed with which emergency and maintenance calls can be handled. However, it is unlikely that individual bus driver effectiveness measures will improve with the implementation of ITS technologies.