Location : The M1 northbound between junctions J21A and J22 . Lane Closures : The hard shoulder and lane 1 are closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to clear between 20:00 and 20:15 on 28 December 2021. Return To Normal : Normal traffic conditions are expected between 20:00 and 20:15 on 28 December 2021. Lanes Closed : There is one of three lanes closed.