Progress is being made on the Expo Line Phase II, which will extend from Culver City to downtown Santa Monica, Curbed Los Angeles reports.

Tests being run on the train earlier today backed up traffic behind the train’s crossing gates on 26th Street just south of Olympic Boulevard, leaving some angry drivers in its wake, LAist reports.

The Expo Line will soon enter its last phase of testing. It is scheduled to open to the public in April or May.