Assertion: railroad's impact | /r/HasProperty | intensified above this speed
Facets:
Source sentences:
text: The criterion of 200 kilometres per hour (124 miles per hour) is selected for several reasons; above this speed, the impacts of geometric defects are intensified, track adhesion is decreased, aerodynamic resistance is greatly increased, pressure fluctuations within tunnels cause passenger discomfort, and it becomes difficult for drivers to identify trackside signalling.