Dunedin City Council staff have agreed to reconsider the idea, having previously ruled it out, after a request from Cr Paul Hudson yesterday.
If a solution was found, the ground could provide space for up to 3000 vehicles across the road from the stadium.
A decision was expected within days, but council staff have warned the logistics of the idea meant it remained a "long shot".
That was because the ground was inside the network of closed roads surrounding the stadium on match days, and within the 500m advertising "clean zone" around the stadium, council Rugby World Cup co-ordinator Debra Simes said.
Logan Park was also the stadium's designated evacuation point, and any risk of disruption to three neighbouring tournament training venues - the Caledonian Ground, Academy of Sport and University Oval facilities - would also need to be considered.
Bad weather could also cause last-minute disruption to any parking plans on the ground, making the idea the type of organisational risk that Rugby New Zealand 2011 Ltd wanted to avoid, she said.
None of the problems was "insurmountable", but possible weather disruption was the main hurdle to overcome, she said.
That would be discussed with the council's community and recreation services staff, who were responsible for council playing fields, to see if there was a solution, she said.
If the idea was approved, the ground could be used by the general public or employees and volunteers associated with the stadium matches, or both, Ms Simes said.
RNZ 2011 Ltd staff were co-ordinating mainly private land around the stadium, needed to cater for about 250 vehicles to be used by workers and volunteers, she said.
The council would also need an "endorsement" from RNZ 2011 Ltd to proceed with the new parking plan, she said.
The move comes after the council unveiled a traffic management plan for tournament matches in Dunedin earlier this month, with street closures and a plan for fans to walk up to 1.7km to the stadium.
The largest parking area for the stadium would be in the city's waterfront industrial area, with space for 2500 vehicles carrying up to 10,000 fans, while a $2 park-and-ride service from the Edgar Centre would be among options.
Cr Hudson, at yesterday's infrastructure services committee meeting, said Logan Park was intended for use in that way when required, had been used successfully in the past and could cater for 2000-3000 vehicles.
Cr Neil Collins agreed, saying the possibility of fans walking through "pouring rain" to reach the stadium "seems to me an impost on older people, to have to hike it down there".
Council transportation operations programme engineer Michael Harrison told the Otago Daily Times afterwards the idea would be "seriously" considered, but remained a "long shot".
Parking had previously only been allowed on the ground during summer, and initial advice from staff was it would be too wet to use in winter and would "just never recover in time for the summer months".
