The R143 is a class of New Technology Train cars built by Kawasaki Rail Car Company for the New York City Subway's B Division. Delivered between 2001 and 2003, the cars displaced R40/As and R42s that operated on the in conjunction with the BMT Canarsie Line's signal system being automated. The R143 was the first "B" Division order of the NTT series, and the first 60-foot (18.29 m) B Division car built for the New York City Subway system since 1969. A total of 212 cars were built, all arranged as four-car sets. First delivered in late 2001, they entered a 30-day period of revenue service testing on December 4, 2001, and officially entered service on the Canarsie Line on February 12, 2002. By March 2003, all cars had been delivered. Description and features The R143s are numbered 8101–8312. The 212 cars were expected to provide enough service for years, but the fast growth of the Williamsburg neighborhood overloaded the L by mid-2006. The R143s are the first 60-foot (18.29 m) B Division cars built for the New York City Subway system since the R42 from 1969, the first NTT model for the B Division, and the first automated fleet in the subway system. They are currently based at East New York Yard and assigned to the L and J/Z. The R143s are very similar to the R160s and R179s, but all three have technical differences. Initially, none of the three were able to interoperate, but modifications made in 2022 with the R143s and the four-car sets of R160As have allowed the two to operate together in one train. Like the R142s, R142As, and R188s, the R143s feature electronic strip maps, depicting all stops on the L route. , the R143s are being retrofitted with strip maps that show all stops on the L and J/Z routes. These newer installations depict the L and J/Z routes using two separate maps side-by-side, using the same 63-light console. Unlike the rest of the NTT fleet at the time, the R143s are equipped with interior LED screens, which take the place of the MTA Arts for Transit cards that are usually located there. These screens can display advertisements, public safety announcements, and other information. Several cars of the NTT fleet were similarly retrofitted with LCD screens after they were delivered. However, the LCD screens have the capability to display multiple colors instead of