What is the required remedial action for a cracked or broken joint bar situated between the middle two bolt holes?

The requirement for a cracked or broken joint bar situated between the middle two bolt holes is to replace it. This action is crucial because joint bars play a significant role in maintaining the integrity and alignment of the rail. A cracked or broken joint bar can compromise the stability of the rail joint, potentially leading to unsafe conditions for trains traveling over that section of track.

Replacing the joint bar ensures that the new component can properly distribute the stresses and loads placed on it, maintaining the safety and efficiency of railway operations. This proactive approach minimizes the risk of further deterioration and enhances overall track reliability. It's important to note that repairs with new bolts or temporary fixes would not be sufficient, as they do not address the root cause of the issue, and regular inspections would not resolve the underlying problem of a compromised joint bar.