Location : The M1 southbound exit slip at junction J21 . Lane Closures : Lane one is closed. Reason : Broken down vehicle. Status : Currently Active. Time To Clear : The event is expected to clear between 18:45 and 19:00 on 20 June 2021. Return To Normal : Normal traffic conditions are expected between 18:45 and 19:00 on 20 June 2021. Lanes Closed : There is one of three lanes closed.