Jelaskan Orange and Red Lines dari Massachusetts Bay Transportation Authority

In October 2013, MassDOT announced plans for a $1.3 billion subway car order for the Orange and Red Lines, which would  replace and expand the existing car fleets and add more frequent service. The MassDOT Board awarded a $566.6 million contract to a China based manufacturer CNR (which became part of CRRC the following year) to build 404 replacement railcars for the Orange Line and Red Line. The other bidders were Bombardier Transportation, Kawasaki Heavy Industries and Hyundai Rotem.  CNR began building the cars at a new manufacturing plant in Springfield, Massachusetts, with initial deliveries expected in 2018 and all cars in service by 2023. The Board forwent federal funding to allow the contract to specify the cars be built in Massachusetts, in order to create a local railcar manufacturing industry. In addition to the new rolling stock, the $1.3 billion allocated for the project will pay for testing, signal improvements and expanded maintenance facilities, as well as other related expenses. Sixty percent of the car's components are sourced from the United States. Replacement of the signal systems, which will increase reliability and allow more frequent trains, is expected to be complete by 2022, with a total cost of $218 million for both lines.