Laserfiche WebLink
<br />be predLcted usLng models of the phenomenology Lnvolved, <br />L.e. Ln many Lnstances the dynamLcs of the Lnput variables <br />are controlled by the hydrology of the area. For example, <br />in the case of the land 10comotLon model, the water width <br />and depth of streams are envLronmental input parameters. <br /> <br />Step 3. Display of the performance predLctions over the area of <br />interest in a form that is nonambiguous and easy to interpret. <br /> <br />3. The model is considered the keystone to the area evaluation process, <br />and considerable research and engineering are devoted to this development. <br />For example, several comprehensive computer models for relating the perform- <br />ance of such diverse military activities as land locomotion, bridging of <br />tactical gaps, battlefield surveillance, construction of roads, helicopter <br />landing zones and airfields, and munition effectiveness have been developed <br />and used in major projects at WES in recent years. However, in applying the <br />three-step concept (para. 2 above) to the study of real-world situations, <br />our experience has shown that Step 2 is by far the most time consuming and <br />difficult. The problems associated with Step 3 usually result from the <br />fact that the product must often serve such diverse users as operations <br />research analysts, strategic planners, and even tacticians. The requirements <br />of the user dictate the nature of the mathematical model, as well as the <br />scale and degree of generalization. <br /> <br />4. Regional studies for military and civil purposes in many instances <br />have parallel problems and similar solutions. Thus, it seems practical to <br />directly transfer experience gained in military research and development to <br />the civil sphere, especially in such areas as the definition of study objec- <br />tives, the size of the study area, degree of detail required, analytical tests, <br />and presentation of findings. <br /> <br />5. Two projects have been selected to illustrate the WES area evaluation <br />concept, and to demonstrate the generic similarities between military and civil <br />problems. The first, entitled "European Waterways Study, ,,2 specifically illus- <br />trates the propositions (and some solutions) associated with Step 2 of the WES <br />concept (see para. 2 above) when it is applied to a waterway network problem. <br />The second, entitled "The Rowlesburg Lake Model System," illustrates the utili- <br />zation of mathematical simulation models in an area of civil works interest. <br /> <br />European Waterways Study <br /> <br />6. The WES effort was to support a Combat Developments Command (CDC) <br />investigation to determine future materLel requLrements for a hLghly mobile <br />army. The specif:l:c problem CDC was addressing was: "Does the Army need a <br />vehicle that swims, or can its future needs be met by other gap-crossing <br />systems?" It is clear that this question can be objectively answered only <br /> <br />14 <br />