CZAMFlyer

Not quite fair at this stage, before we know the details. Although the incident was probably due to aircrew error, we must consider the possibility that taxi charts were inaccurate (admittedly unlikely) or that ATC gave confusing or incorrect instructions (again, improbable). Weather/time of day doesn't seem to be a factor judging by photos; maybe there was implied pressure to vacate the runway? And were the physical barriers and paint markings adequate? Either way, it shouldn't have happened, and it's fortunate a collision with something hard (paving machine) or soft (paving contractor) didn't occur.

Karmic reciprocation? It was only a couple weeks ago that a JAL 788 did the same thing at YVR: taxied onto a closed surface and required assistance to extricate themselves, closing a runway in the process.