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<br />002810 <br /> <br />o Encouraging planners and decisionmakers--both public and private--to <br />develop in-house capabilities to obtain and apply the information. <br /> <br />o Providing adequate training to potential users to enable them to understand <br />and to use the information effectively. <br /> <br />Usable and Understandable Maps and Reports <br /> <br />A prerequisite for a successful landslide-hazard reduction program is the <br />production of adequate and reliable information about the hazard. The diverse <br />groups of users need specific landslide information--1ocation, severity, and <br />recurrence--of the hazard shown on a map. Reports and maps designed for one <br />common user group--inte11~gent and interested citizens--serve user needs as to <br />content, scale, detail, and interpretation and provide a common basis for <br />discussion during public hearings. Simple maps--with a few "stop-light" <br />co1ors--are the most effective and most frequently prepared for this user <br />group. <br /> <br />Improvement in technology requires that geologists and engineers experiment <br />with different methods of making hazard maps, risk evaluations, and landslide <br />predictions. The results of these studies will portray landslides and <br />landslide processes in far greater detail than is needed for land-use plans <br />and their implementation, but, over the longer term, will result in definitive <br />assessments of landslide risk and hazard. Such products can be readily <br />simplified for nongeo1ogists. <br /> <br />A wide variety of maps and reports ranging from highly technical documents to <br />popular-type releases are required. Annotated bibliographies of landslide <br />processes and damage reports, indexes to landslide inventory and hazard maps, <br />and directories of natural hazard data are extremely helpful. Examples of <br />various hazard maps at scales ranging from 1:12,000 to 1:100,000 are given in <br />List 2. Producing usable and understandable information requires: <br /> <br />o Identifying the maps and reports needed. <br /> <br />o Assuring that new landslide information is prepared in the detail and at <br />the scales needed and understood by the targeted users. <br /> <br />- 24 - <br />