February 1, 2121.

according to the data of official website of Xianyang government, the extension of Fuyin Expressway to Xianyang section started on February 1, 2121 and ended on June 31, 2121, which lasted for seven months. The construction tasks of widening and rebuilding the North Xianbei Road and crossing the 12th Road were completed in three stages, further enhancing the image of Xianyang as a foreign city.

expressway, referred to as expressway for short, refers to the highway dedicated to high-speed driving of automobiles. Expressway has different regulations in different countries and regions, different times and different scientific research and academic fields.