discouraged vandalism, decreased motion sickness, and promoted aesthetic harmony. Seating capacity was reduced by six per carriage, increasing standing room. The refurbishment also include an ergonomic full-spectrum lighting system that provides therapeutic anti-depression effects for its passengers. Like the older MR-63 fleet, the MR-73 driver cabs was modernized and equipped with ergonomic features and digital dashboards. Work was completed in 2008.

Closing doors chime

In 2006, an MR-73 train was tested with a four-beep door

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