Breakdown on M1 between Chesterfield/Mansfield and Tibshelf junctions Junction 29 of the M1 Drivers are warned that a vehicle has broken down on the M1 southbound between the turn-offs for Chesterfield/Mansfield and Tibshelf. One lane is closed between junction 29 and 28.Traffic conditions are expected to return to normal by 8.45am. Five miles of queues on M1 after two lorry crash