Uber has other one-time promotions in Des Moines, Iowa, and Dallas, Texas. During the same period, Uber also helped distribute (via their drivers) free pre-loaded EASY public transport passes to encourage riders to try mixing Uber and Metrorail. For several weeks between 00:30 and 4:00, Lyft offered up to a 75% discount for shared Lyft Line rides along the T line and Uber offered a flat USD 5 UberPOOL fare. They represent very early experimentation by companies and public authorities seeking synergies between the types of services provided by ride-sourcing and commercial ride-sharing companies and public transport operators.