Barry O’Sullivan has been found guilty of causing the death of Pulvinder Dhillon by careless driving on a smart motorway section of the M4 in 2022 but the verdict in no way lets National Highways off the hook and it is unarguable that the crash would not have happened if the “smart” technology had done its job.
A jury sat through the trial and heard the evidence – plus the judge’s summing up – and decided that O’Sullivan was guilty so I won’t argue with them.
But in this case it has always been possible to argue both that O’Sullivan was culpable despite National Highways’ shocking failings and that National Highways failed abysmally despite O’Sullivan’s culpability.

I first wrote about the crash soon after it happened and was told by a senior National Highways official that the stopped vehicle detection (SVD) technology had worked as far as possible, except that a fault with the wider system meant that alerts were not posted on gantries.
The M4 [incident] was a particular issue with some of our back office systems that were offline at the time – we’ve now corrected the system so that can’t happen. The scheme was still in operational acceptance so, as tragic as it was, this was a shortcoming of a system that [hadn’t yet] been handed into business as usual.
What I didn’t know then was that this was the fifth day of this fault and that National Highways had failed to effect what turned out to be quite a quick fix because the fault was wrongly categorised.










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