Police were now contacting the woman's next of kin.
Photos from the scene show a Toll Group-branded truck-and-trailer stopped at the crossing. A person's walking frame is also visible.
Toll Group confirmed one of their trucks had been involved in the crash.
"Toll is deeply saddened to learn of the death of a pedestrian involving a Toll vehicle this morning in Hamilton," a spokesman said.
"Our thoughts are with the victim's family and we offer our deepest condolences. We are fully co-operating with the investigation and offering counselling to support our affected employees."
No one from the retirement village was available to speak with the Herald this afternoon.