MBTA Orange Line: 55 mph Speed Increase – Infrastructure Improvements

MBTA’s Orange Line boosts train speed to 55 mph, thanks to key track improvements.

MBTA Orange Line: 55 mph Speed Increase – Infrastructure Improvements
September 6, 2025 9:24 pm
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Introduction

The Massachusetts Bay Transportation Authority (MBTA) announced on August 24 that Orange Line trains are now operating at 55 mph in select segments between Oak Grove and Assembly Station, a speed increase from the previous 40 mph limit.

Speed Increase Details

The MBTA’s Orange Line has increased its operating speed to 55 mph in specific sections. This marks the first time the Orange Line has reached this speed. The speed increase follows the removal of previous speed restrictions on the line.

Infrastructure Improvements

The speed increase is a result of the 2023-2024 track improvement program. This program addressed track infrastructure issues that had previously limited speeds. The program removed over 220 speed restrictions across the MBTA system.

Track Replacement Efforts

The track improvement program included the replacement of 250,000 feet of rail across the MBTA system. The program’s completion enabled the restoration of maximum allowable speeds on the Orange Line.

Executive Statement

MBTA General Manager and CEO Phillip Eng stated, “In 2024 we eliminated speed restrictions and restored maximum allowable speed for the entire Orange Line and now are ready to further shorten trip times giving our riders back even more precious time.”

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Conclusion

The MBTA’s Orange Line has increased train speeds to 55 mph in certain segments, following infrastructure improvements made as part of the 2023-2024 track program. This program eliminated speed restrictions and involved extensive rail replacement.

Company Summary

Massachusetts Bay Transportation Authority (MBTA): The MBTA operates public transportation services in the Boston metropolitan area, including the Orange Line.

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