ATP-5-0-2-1 Staff Reference Guide Volume 1 Download
Page 100 of 440
Chapter 2 84 ATP 5-0.2-1 07 December 2020 restricted terrain for armored and mechanized forces. Common techniques for depicting this type of terrain on overlays and sketches are to mark the areas with green cross-hatched diagonal lines or color-code them in red. Restricted terrain hinders movement to some degree. Improving mobility in restricted terrain takes little effort, but units may have difficulty maintaining preferred speeds, moving in combat formations, or transitioning from one formation to another. Restricted terrain slows movement by requiring zigzagging or frequent detours. Restricted terrain for armored or mechanized forces typically consists of moderate-to-steep slopes or moderate-to-densely spaced obstacles such as trees, rocks, or buildings. Swamps or rugged terrain are examples of restricted terrain for dismounted infantry forces. Logistical or sustainment area movement may be supported by poorly developed road systems. Common techniques for depicting restricted terrain on overlays and sketches is marking the areas with green diagonal lines or color-coding them in yellow. Unrestricted terrain is free from any restriction to movement. No mobility enhancements are needed. Unrestricted terrain for armored or mechanized forces is typically flat to moderately sloping terrain with scattered or widely spaced obstacles such as trees or rocks. Unrestricted terrain allows wide maneuver by forces and unlimited travel supported by well-developed road networks. No symbology is needed to show unrestricted terrain on overlays and sketches (see table D-3 on page 218 for examples of movement rates for mechanized or armored forces in severely restricted, restricted, and unrestricted terrain). 2-254. Terrain mobility classifications reflect the relative effect of terrain on the different types and sizes of movement formations. The classifications reflect the ability of forces to maneuver in combat formations or transition from one type of formation to another. Consider the following: Obstacles are only effective if they are covered by observation and fires. However, even undefended obstacles may canalize an attacker into concentrations, which are easier to detect and target or defend against. Obstacles are often shown in green on map overlays. When evaluating the terrain's effect on more than one type of organization (for example, mounted or dismounted), obstacle overlays reflect the mobility of the particular force. Cumulative effects of individual obstacles should be considered in the final evaluation. For example, individually, a gentle slope or a moderately dense forest may be an unrestrictive obstacle to vehicular traffic. Together, the combination of the slope and dense forest might be restrictive. Account for how weather affects mobility (beginning in paragraph 2-257—how to evaluate weather effects). Classifying terrain into various obstacle types reflects only its relative impact on force mobility. Examples abound of forces surprising an enemy by negotiating supposedly "impassable" terrain. 2-255. Figure 2-20 is an example of an MCOO developed for natural terrain. For urban terrain, graphics typically depict— Population status overlays (population centers, urban areas, political boundaries). Logistics sustainability overlays. LOCs Route overlays (street names, patterns, and widths). Bridges (underpass and overpass information). Potential sniper and ambush locations (this data will likely be a separate overlay). Key navigational landmarks.