Terrain traversability

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Note added at 3 hrs (2019-09-26 12:03:30 GMT)
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the traversability of the terrain

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Note added at 8 hrs (2019-09-26 17:14:58 GMT)
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THE INFLUENCE OF GROUND COMBAT VEHICLE WEIGHT ON AUTOMOTIVE PERFORMANCE, TERRAIN TRAVERSABILITY, COMBAT EFFECTIVENESS, AND OPERATIONAL ENERGY
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This study utilized computer simulations to analyze the influence of vehicle weight on automotive performance, terrain traversability, combat effectiveness, and operational energy for the M1A2 Abrams, M2A3 Bradley, and M1126 Stryker. The results indicate that a 15% reduction in combat vehicle weight correlates to 0-20% or greater improvements in: automotive mobility (top speed, speed on grade, dash time, fuel economy), terrain traversability (minimum required soil strength, % Go-NoGo, off road speed), combat effectiveness (% of combat effective outcomes, hits sustained, time, average and top speed in kill zone), and operational energy (gallons of fuel and fuel truck deliveries).
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TERRAIN TRAVERSABILITY ANALYSIS
Terrain Analysis consisted of running the three vehicle through the NATO Reference Mobility Model (NRMM) over different terrain conditions. The NRMM software tool is the current industry standard tool for predicting vehicle mobility. NRMM has detailed soil data for different regions of the world and predicts terrain traversability as a function of various vehicle parameters, including weight.
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The terrain traversability metrics considered in this study were: (i) Vehicle Cone Index (VCI), (ii) % NoGo, (iii) V50 speed, and (iv) V80 speed.
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Since VCI1 correlates to the soil strength, this result indicated that decreasing vehicle weight could allow the vehicle to successfully traverse softer soil.
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While the VCI1 provides a performance metric for a given soil condition, the %NoGo provides a metric for analyzing the ability of a vehicle to traverse cross-country terrain under varying soil conditions.
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Stryker (wheeled) demonstrated the ability to traverse terrain type 2 (primarily sandy) well. In general, if a vehicle has a low %NoGo, i.e., can traverse near 100% of the terrain, weight reduction will not improve the metric, since it is not possible to drop below 0% NoGo. Stryker, however, was not shown as capable in traversing terrain type 3 (primarily mountainous) or terrain type 1 (foliage and mud).
http://gvsets.ndia-mich.org/documents/MSTV/2018/The Influenc...

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Note added at 9 hrs (2019-09-26 17:34:48 GMT)
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Przekraczalność terenu to zdolność do pokonywania przeszkód sztucznych i naturalnych, różnorodnych rodzajów nawierzchni, oraz przeszkód wodnych.

Terrain traversability is the ability to traverse terrain obstacles, both natural and artificial ones, various surfaces and water obstacles.

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Note added at 5 days (2019-10-01 09:41:09 GMT) Post-grading
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... under varying surface conditions, including water obstacles