Overview
This memo presents a synthesis of existing practice, based on collection of structured information from state and local agencies with signal system management responsibilities. One hundred twenty agencies were contacted and asked to fill out a data collection instrument placed on the web. The instrument was designed to collect basic information on the size and characteristics of each agency's signal system, and to provide an indication of the extent to which asset management principles (as described above) were being applied. Participation in the data collection was voluntary and 26 agencies responded during the fall and winter of 2003-2004. In-depth interviews with selected agencies will be used to supplement this information in order to provide input for development of the generic signal system asset management system model.