Positive Guidance In Traffic Control

The progress that has been made in developing the positive guidance concept is documented, and the meaning of positive guidance, the philosophy of driver performance upon which it is based the nature of the driving task at those locations where positive guidance is applicable, and a procedure for its application are discussed. This report describes what must be done to improve the information system at hazardous locations. Positive guidance which is an information system matched to the facility characteristics and driver attributes, is based on the premise that a driver can be given sufficient information where he needs it and in the form that he can best use to avoid hazards.

TRB¿s National Cooperative Highway Research Program (NCHRP) Report 624: Selection and Application of Warning Lights on Roadway Operations Equipment explores recommended guidelines for the selection and application of warning lights on roadway operations equipment.

Positive Guidance is a high payoff, short-range way to enhance safety of substandard facilities. This report presents three types of information to guide the user in applying Positive Guidance. Part I of this report discusses the principles, concepts and terminology underlying Positive Guidance. Part II presents the procedures for performing the eighteen activites required to accomplish Positive Guidance objectives. Part III presents three case studies to show procedure application and product variation brought on by site differences. The three case studies are urban, signalized intersection; interstate freeway segment; and, a rural two lane road.