In the context of this incident and others of a similar nature:
www.gov.uk
In essence there can be an issue with AHB (Automatic Half Barrier) crossings where the barriers are raised after a preset amount of time, the risk being that a train is still across the crossing.
My question is, given the MCB-OD (Manually Controlled Barriers - Obstacle Detection) crossings check for the presence of obstructions on the carriageway before lowering, do, or indeed could, they check for the presence of obstructions on the carriageway before raising? The net result would be that the circumstances in the above report could not occur at an MCB-OD crossing.
Wonder if anyone knows the answer to this?

Report 08/2018: Collision at Stainforth Road level crossing
Collision at Stainforth Road level crossing, 11 January 2018.
RAIB said:At around 05:50 hrs on 11 January 2018, a car collided with the rear-most wagon of a stationary freight train at Stainforth Road Automatic Half-Barrier level crossing, near Doncaster. The crossing’s warning equipment was not operating and its half- barriers were raised when the car approached and entered the crossing.
In essence there can be an issue with AHB (Automatic Half Barrier) crossings where the barriers are raised after a preset amount of time, the risk being that a train is still across the crossing.
My question is, given the MCB-OD (Manually Controlled Barriers - Obstacle Detection) crossings check for the presence of obstructions on the carriageway before lowering, do, or indeed could, they check for the presence of obstructions on the carriageway before raising? The net result would be that the circumstances in the above report could not occur at an MCB-OD crossing.
Wonder if anyone knows the answer to this?