CSX Transportation, Inc. (CSXT) requested approval from the Surface Transportation Board to let certain temporary trackage rights, currently in effect, expire once a construction project in the Howard Street Tunnel is complete and the tunnel is reopened. CSXT has been using Norfolk Southern Railway Company (NSR) tracks as alternate routes while the tunnel undergoes construction to allow double-stack train passage. The board agreed to CSXT's request, meaning the temporary rights will end once the project is completed, which will allow CSXT to resume its normal routes. This decision supports efficient regulation and does not negatively impact market power or shipping services.
Simple Explanation
CSX Transportation has been using different train tracks owned by another company while fixing a tunnel so their big trains can fit. Now that the tunnel is almost ready, they don't need those other tracks anymore. The train helpers said it’s okay, and everything will go back to normal soon.