Location : The M1 northbound exit slip at junction J23A . Lane Closures : Lane one is closed. Reason : Broken down vehicle. Status : Currently Active. Time To Clear : The event is expected to clear between 02:45 and 03:00 on 22 June 2021. Return To Normal : Normal traffic conditions are expected between 02:45 and 03:00 on 22 June 2021. Lanes Closed : There is one of two lanes closed.