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Federal Highway Administration, August 1975. This widely circulated and quoted publcation developed cost-effective techniques for direct access control that will optimize the traffic operational efficiency and safety subject to providing suitable and sufficient access to commercial properties on arterial streets and highways. Photocopy. Book, traffic safety expert books,pavement edge drop expert, pavement edge drop off expert, work zone safety expert, construction zone safety expert, roadway hydroplaning expert, traffic engineering expert, traffic sign expert, traffic signal expert, pavement marking expert, highway safety expert