ALAMEDA -- A measure to amend the City Charter to prevent the sale or swap of public parks by city officials without first securing voter approval won easily at the ballot box on Tuesday.

Measure D secured about 78 percent of the vote, late results showed.

Residents campaigned to place the measure on the ballot after the City Council considered a proposal to swap a portion of the city-owned Chuck Corica Golf Complex with developer Ron Cowan for another parcel at the Harbor Bay Business Park.

While the council rejected Cowan's proposal in May, Measure D supporters said amending the charter was still necessary to prevent the City Council approving a similar plan in the future.

Reach Peter Hegarty at 510-748-1654 or follow him on Twitter.com/Peter_Hegarty/.