How much deviation is allowed in crosslevel (warp) between two points less than 62 feet apart on tangent track?

In the context of rail safety and maintenance, crosslevel refers to the vertical alignment of the tracks at a specific point, which is crucial for ensuring a smooth ride and preventing derailments. For tangent track, which is straight and does not have curves, the allowable deviation in crosslevel can typically range up to a certain measurement based on the standards set forth by regulatory bodies.

When discussing tangent track where two points are less than 62 feet apart, the allowable deviation is indeed very strict due to the necessity for maintaining stability and safety over short distances. The standard typically allows for a maximum deviation that's not just a specific measurement, but constrained within a careful guideline that maintains track integrity. Thus, the correct answer emphasizes that any deviation must be less than the allowable measurement that is defined by the rail industry standards.

This choice reflects the emphasis on safety and regulation compliance, which underlines the importance of adhering strictly to prescribed limits. Therefore, while specific measurements may exist for longer spans, the point illustrated highlights that for short distances on tangent track, maintaining levels very closely to the standard is paramount for operational safety.