Davis said it would keep the anticipated tens of thousands of fans from crowding downtown streets and reduce traffic congestion. He added that fans -- eager for what could be one of the band's last shows -- are willing to pay more and it could be an economic opportunity for Chicago.
Also, it's long been a Deadhead tradition with fans bringing RV's to concerts with "no negativity," he said.
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"It's something that we've been doing for so long," said Davis, who works in finance but also makes jewelry sold at concerts "This is almost a no brainer."
Officials in Chicago said many factors have to be considered, among them safety. Opening lots around Soldier Field for more than four hours prior to the show -- the typical time -- will take resources and coordination from police, the fire department and other agencies. He said an evaluation would take place over the coming weeks.