Mike Hodgson wrote:I assume this incident should not have occurred had it been MCB-OD
OD crossings should prevent the exit barrier from lowering if an obstruction is detected so arguably yes it would have been different but I suspect that this crossing is too busy to qualify for OD protection.
The signaller is not (as previously stated) required to view the crossing during the lowering sequence and indeed may be too busy to do so, the only requirement is that the crossing must be viewed to confirm that it is clear before the 'crossing clear' button is pressed.
The question that remains is does the crossing have enough time in the lowering sequence so that when someone slow passes the entrance barrier with the lights out and the yodel alarm silent and reach the other side before the exit barrier comes down, the answer is almost certainly yes it will, so what remains is did the people involved start to cross after the lower sequence had started or was there a malfunction causing the crossing sequence to run too quickly. The answer to that should be found from the crossing data logger and the CCTV picture recordings.