Canadian Pacific Kansas City and CSX Corp. announced upgrades to the Southeast Mexico Express premium service, featuring faster transit times with more origin and destination options for customers looking to reach new markets.
The new SMX premium service schedule and routing options launched this week offer industry-best, truck-competitive transit times between southeastern markets such as Atlanta, Charlotte or central Florida, and markets in Texas and Mexico, including Dallas and Monterrey. The service improvements have reduced transit times for every previously available SMX option. These reductions range from approximately one day faster service between Atlanta and Dallas to approximately two-and-a-half days faster between Atlanta and central Mexico.
SMX improvements are the result of capital investments in track, bridges, and signal infrastructure on the former Meridian & Bigbee Railroad, as well as continued investments across the corridor in Georgia, Alabama, Mississippi, Louisiana, and Texas, resulting in greater speeds and efficiency.
The new SMX dedicated train service provides two-day service between Atlanta and Dallas, with three-day service from Monterrey and four-day service from central Mexico to Atlanta. Customers can extend their reach with new SMX origins and destinations in Charlotte, Jacksonville and Central Florida.
CSX and CPKC debuted the SMX in December 2024, creating rail transportation routing options with available capacity along this east-west corridor for customers looking to reach Texas and Mexico from the U.S. Southeast. The connection came out of the two Class I’s respective acquisitions of portions of the former MNBR. As a result, CPKC and CSX established a direct Class I-to-Class I interchange near Myrtlewood, Alabama.
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