What is the recommended measurement for detecting downward deformation in the goose neck tunnel?

The recommended measurement for detecting downward deformation in the goose neck tunnel is 15mm. This specific measurement is critical because it serves as a threshold indicating significant structural integrity concerns when operating dry vans. A downward deformation exceeding this amount may signal potential issues in the tunnel that could impact the overall safety and usability of the container.

Monitoring deformation is essential for maintaining the structural integrity of dry vans, especially in areas like the goose neck, where stresses are concentrated. A threshold of 15mm allows for early detection of deformation before it leads to more severe structural failures, ensuring that preventative measures can be taken. This proactive approach is vital in the trucking and logistics industry, where container integrity directly affects cargo safety and transportation efficiency.