KAI is currently developing the first edition of the Signal Timing Manual for the Federal Highway Administration as part of a national effort to improve the performance of signalized intersections. This manual will address aspects of traffic signals including planning, design, operations, and maintenance, with proper consideration for all modes. The manual will discuss the operational features of the standard traffic signal controller such as detector layout and timing, coordination parameters, and advanced applications. KAI is working with the University of Maryland and the Texas Transportation Institute in support of the effort.