What is the speed limit for a mixed freight train handling cars restricted by weight?

The speed limit for a mixed freight train handling cars restricted by weight is 40 mph. This limit is set to ensure safety when transporting mixed freight loads, which may include a variety of cargo types and weights. Handling restrictions could be placed on some cars due to their lighter weight or specific cargo characteristics, which can influence the train's overall stability and braking distance. Consequently, a lower speed limit is implemented to mitigate risks associated with operating a train that may not be able to handle the same speeds as those that are fully loaded or consist of heavier cars.

In broader terms, speed limits for different train types are determined based on operational safety and performance standards. The chosen limit reflects the need to safely manage the variability in the types of loads that might be present in a mixed freight train. Understanding these limits is crucial for ensuring the safety of train operations and preventing accidents.