On September 14, 2009, Mr Liggett was crushed when a poplar fell on his ute in high winds.
Five months later, the council spent $69,200 to fell 73 poplars along Lower Shotover Rd, to increase public safety.
The tree policy's purpose was to specify the principles, practices and objectives regarding the council's ongoing protection and management of council-owned trees within the district, with three other items added to the policy's rationale yesterday, based on recommendations by the Tree Policy Working Party.
The inclusions were:The Community Services Committee recognises the limited life span of many trees.
Over time, tree growth will be limited within rural roading corridors on the majority of rural roads throughout the district.
The recognition of the use of trees as being an effective way of controlling traffic speed, especially between the rural and urban interface.
QLDC parks manager Gordon Bailey said it was the third time in five years that the council had looked at the policy.
David Clarke, of the Arrowtown Planning Advisory Group, told the committee he supported the revision of the policy.
"I ask that it be done as it has in Arrowtown for the past 20 years.
"The system works well between the council and their residents."
The revised policy will also focus on conservation within the area.
Councillor Vanessa van Uden asked for a project to assist local education.
"I would like to see schools brought in to help plant fruit and nut trees in the area.
"Children can learn that by planting these trees you can help the community."
Further encouragement was also expressed of the idea of planting in areas where there was room for trees to mature without affecting or threatening the roads.
A further review of the policy will be undertaken in five years.
Mr Liggett's widow, Cindy, could not be reached for comment.
It is understood she is overseas.
