Nearly 10 months after the multibillion-dollar project went off the rails over political differences between the city and provincial government, the Green Line is back on track, with construction ...

Dozens of Green Line operators have been cited for speeding in recent years, according to T records, and excess speeds have historically been a factor in crashes.

WASHINGTON — Five months after automatic train operation restarted on the Red Line, Metro is expanding the program to the Green and Yellow lines starting Friday.

An MBTA Green Line trolley parked at the Park Street station collided with another trolley behind it Wednesday evening, NewsCenter 5 has learned.

A track maintenance vehicle derailed between Government Center and Park Street causing service disruptions to the Green Line, officials said.

Build a Speed Sensor using Arduino with IR speed sensors to accurately measure the speed of moving objects. This tutorial covers circuit design, sensor calibration, speed calculations, and optimized ...

The MS5611-01BA03 is a high resolution pressure (and temperature) sensor a.k.a GY-63. The high resolution is made possible by oversampling many times. The device address is 0x76 or 0x77 depending on ...

CTA Green and Orange Line trains are running with delays after a report of a minor fire at track level, the transit agency said Monday.

Four weeks of disruption to Green Line riders kicked off Monday, with construction aimed at fixing narrow tracks and eliminating speed restrictions on the beleaguered line.