This handbook can be thought of as a visual bridge between what is known and what is being done to build and operate a safer street and highway system. By illustrations and a minimum of narrative, known solutions are presented for a wide variety of design and operating conditions associated with current highway hazards. The subject material contained in this initial issuance deals with design and operating problems commonly found on superior highway facilities. Guidelines for the relief of other hazards on these and other highways will be issued in the future through loose leaf additions to this handbook. The handbook is intended to serve all jurisdictions of government. The format and circulation is designed to attract the attention of those making administrative and technical decisions that affect street and highway design and operation. /author/.
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